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$63 Find Cheap Flights from St. Louis to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Seattle departing on 12/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Seattle.
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Cheap Flight Deals from St. Louis to Seattle (STL-SEA)

 
These are the cheapest deals for flights from St. Louis to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Seattle.

Recent one-way flight deals from St. Louis to Seattle

Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Seattle found on KAYAK recently.

Recent last minute flight deals from St. Louis to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from St. Louis to Seattle.

Recent direct flight deals from St. Louis to Seattle

The latest deals for direct flights from St. Louis to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from St. Louis to Seattle

Find recent round-trip train or bus tickets from St. Louis to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:25 pm - 8:06 amSTL-SEA
16h 41m1 stop
8:19 pm - 11:54 pmSEA-STL
25h 35m1 stop
$113Frontier
Find Deal
Sat, Nov 16 - Tue, Nov 19
5:25 pm - 8:06 amSTL-SEA
16h 41m1 stop
10:25 am - 7:38 pmSEA-STL
7h 13m1 stop
$115Frontier
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Sat, Nov 16 - Mon, Nov 18
4:08 pm - 11:09 pmSTL-SEA
9h 01m1 stop
11:59 pm - 8:54 amSEA-STL
6h 55m1 stop
$196American Airlines
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Sat, Dec 7 - Mon, Dec 9
6:35 pm - 12:15 amSTL-SEA
7h 40m1 stop
5:10 pm - 12:42 amSEA-STL
5h 32m1 stop
$206Delta
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Fri, Nov 15 - Thu, Nov 21
6:00 am - 10:44 amSTL-SEA
6h 44m1 stop
12:55 am - 10:40 amSEA-STL
7h 45m1 stop
$207Delta
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Thu, Nov 21 - Thu, Nov 28
7:15 am - 1:10 pmSTL-SEA
7h 55m1 stop
6:16 am - 5:13 pmSEA-STL
8h 57m1 stop
$221American Airlines
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Tue, Nov 19 - Thu, Nov 21
5:40 pm - 10:49 pmSTL-SEA
7h 09m1 stop
8:30 am - 8:57 pmSEA-STL
10h 27m2 stops
$236United Airlines
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Sat, Nov 16 - Tue, Nov 19
7:00 am - 9:37 amSTL-SEA
4h 37mnonstop
6:04 pm - 11:59 pmSEA-STL
3h 55mnonstop
$237Alaska Airlines
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Wed, Dec 25 - Tue, Dec 31
7:09 am - 3:33 pmSTL-SEA
10h 24m1 stop
7:11 pm - 11:10 amSEA-STL
13h 59m2 stops
$247United Airlines
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Fri, Nov 15 - Mon, Nov 18
2:20 pm - 5:00 pmSTL-SEA
4h 40mnonstop
7:30 am - 1:24 pmSEA-STL
3h 54mnonstop
$257Alaska Airlines
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Fri, Dec 6 - Sun, Dec 8
6:46 pm - 11:29 amSTL-SEA
18h 43m1 stop
$63Frontier
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Sat, Dec 14
5:37 pm - 7:15 amSTL-SEA
15h 38m1 stop
$65Frontier
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Tue, Nov 12
6:30 am - 2:45 pmSTL-SEA
10h 15m1 stop
$98Delta
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Thu, Nov 21
5:17 am - 10:37 amSTL-SEA
7h 20m1 stop
$108American Airlines
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Thu, Nov 7
7:00 am - 9:36 amSTL-SEA
4h 36mnonstop
$119Alaska Airlines
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Thu, Nov 21
6:00 am - 10:44 amSTL-SEA
6h 44m1 stop
$123Delta
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Tue, Nov 19
2:20 pm - 5:00 pmSTL-SEA
4h 40mnonstop
$129Alaska Airlines
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Fri, Dec 6
8:40 am - 8:20 pmSTL-SEA
13h 40m2 stops
$151United Airlines
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Wed, Nov 13
10:10 am - 6:41 pmSTL-SEA
10h 31m2 stops
$158United Airlines
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Thu, Nov 14
7:00 am - 9:36 amSTL-SEA
4h 36mnonstop
$164American Airlines
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Thu, Nov 21
5:37 pm - 7:15 amSTL-SEA
15h 38m1 stop
9:19 am - 11:13 pmSEA-STL
11h 54m1 stop
$134Frontier
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Tue, Nov 5 - Tue, Nov 12
5:37 pm - 7:15 amSTL-SEA
15h 38m1 stop
10:25 am - 7:38 pmSEA-STL
7h 13m1 stop
$214Frontier
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Tue, Nov 5 - Mon, Nov 11
4:00 pm - 8:37 pmSTL-SEA
6h 37m1 stop
5:30 am - 1:35 pmSEA-STL
6h 05m1 stop
$316Delta
Find Deal
Sat, Nov 2 - Sat, Nov 9
5:16 am - 1:05 pmSTL-SEA
9h 49m1 stop
1:16 am - 10:46 amSEA-STL
7h 30m1 stop
$331American Airlines
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Sun, Nov 3 - Sat, Nov 23
4:00 pm - 8:37 pmSTL-SEA
6h 37m1 stop
5:30 am - 1:30 pmSEA-STL
6h 00m1 stop
$357Delta
Find Deal
Sat, Nov 2 - Mon, Nov 11
10:10 am - 10:30 pmSTL-SEA
14h 20m2 stops
5:36 am - 4:56 pmSEA-STL
9h 20m1 stop
$411United Airlines
Find Deal
Sat, Nov 2 - Sun, Nov 10
12:37 pm - 8:20 pmSTL-SEA
9h 43m1 stop
5:36 am - 5:16 pmSEA-STL
9h 40m1 stop
$412United Airlines
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Sat, Nov 2 - Sun, Nov 3
5:16 am - 10:56 amSTL-SEA
7h 40m1 stop
12:59 am - 8:45 amSEA-STL
6h 46m1 stop
$537American Airlines
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Fri, Nov 1 - Sat, Nov 2
2:24 pm - 4:59 pmSTL-SEA
4h 35mnonstop
7:34 am - 1:27 pmSEA-STL
3h 53mnonstop
$607Alaska Airlines
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Sun, Nov 3 - Sun, Nov 10
7:00 am - 9:36 amSTL-SEA
4h 36mnonstop
7:34 am - 1:27 pmSEA-STL
3h 53mnonstop
$627Alaska Airlines
Find Deal
Sun, Nov 3 - Sun, Nov 10
7:00 am - 9:37 amSTL-SEA
4h 37mnonstop
6:04 pm - 11:59 pmSEA-STL
3h 55mnonstop
$237Alaska Airlines
Find Deal
Wed, Dec 25 - Tue, Dec 31
7:00 am - 9:33 amSTL-SEA
4h 33mnonstop
7:30 am - 1:24 pmSEA-STL
3h 54mnonstop
$247Alaska Airlines
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Thu, Nov 28 - Thu, Dec 5
2:20 pm - 5:00 pmSTL-SEA
4h 40mnonstop
7:30 am - 1:24 pmSEA-STL
3h 54mnonstop
$257Alaska Airlines
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Fri, Dec 6 - Sun, Dec 8
2:23 pm - 4:58 pmSTL-SEA
4h 35mnonstop
7:35 am - 1:27 pmSEA-STL
3h 52mnonstop
$267Alaska Airlines
Find Deal
Tue, Nov 26 - Fri, Nov 29
7:00 am - 9:34 amSTL-SEA
4h 34mnonstop
6:06 pm - 11:59 pmSEA-STL
3h 53mnonstop
$277Alaska Airlines
Find Deal
Fri, Dec 6 - Mon, Dec 9
2:24 pm - 4:59 pmSTL-SEA
4h 35mnonstop
6:11 pm - 11:59 pmSEA-STL
3h 48mnonstop
$307Alaska Airlines
Find Deal
Mon, Nov 18 - Sat, Nov 23
7:00 am - 9:36 amSTL-SEA
4h 36mnonstop
6:11 pm - 11:59 pmSEA-STL
3h 48mnonstop
$317Alaska Airlines
Find Deal
Tue, Nov 19 - Thu, Nov 21
7:00 am - 9:37 amSTL-SEA
4h 37mnonstop
7:35 am - 1:27 pmSEA-STL
3h 52mnonstop
$327American Airlines
Find Deal
Wed, Dec 25 - Tue, Dec 31
7:00 am - 9:33 amSTL-SEA
4h 33mnonstop
6:11 pm - 11:59 pmSEA-STL
3h 48mnonstop
$337Alaska Airlines
Find Deal
Wed, Nov 27 - Mon, Dec 2
7:00 am - 9:36 amSTL-SEA
4h 36mnonstop
6:11 pm - 11:59 pmSEA-STL
3h 48mnonstop
$407American Airlines
Find Deal
Fri, Nov 15 - Thu, Nov 21

Flights from St. Louis to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Seattle?

The average price of all flights from St. Louis to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from St. Louis to Seattle, you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Sundays and the most expensive ones on Mondays.

What is the cheapest month to fly from St. Louis to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Seattle is January, where tickets cost $247 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $486 and $456 respectively.

Can I save money by flying with a layover from St. Louis to Seattle?

The average price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of $1,085, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from St. Louis to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Seattle, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 81 days before departure.

Good to know

Low season

January

High season

August

Cheapest flight

$63
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from St. Louis to Seattle

When to book flights from St. Louis to Seattle

Are your dates flexible? Find out the best times to travel from St. Louis to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Seattle

  • How far is downtown Seattle from Seattle Tacoma International Airport?

    Downtown Seattle is about 15 miles away from the airport. There are multiple ways to get there, although they all vary in cost, speed, and convenience. For instance, the fastest way to downtown Seattle would be by taking a taxi. They can easily be found on the third floor of the parking garage and take less than 25min. Alternatively, you can opt for public transport, which is significantly cheaper but slower than a taxi. To board your train, just head to the bridge on the fourth floor of the parking garage where the terminal is located.

  • Does Seattle Tacoma Airport offer wheelchair services?

    Seattle Airport offers complimentary wheelchair services to aid travelers in getting from the plane to baggage claim to the ground transportation center with ease. However, due to logistics reasons, the airport mainly works with the airlines to provide these services. Therefore, the best way to get wheelchair assistance would be by booking with your airline, which will then put on a note on your reservation record informing the airport that you require special assistance.

  • Is on-site parking available at St. Louis Lambert International Airport?

    St. Louis Lambert Airport has plenty of on-site parking options. Two are specially dedicated for long-term parking. They include Long-Term Parking Lot B and Long-Term Parking Lot C, which is split into a covered and uncovered section. Long-Term Parking Lot B is located past Daily Parking Lot A east of the terminal, while Parking Lot C is situated southwest of the airport.

  • Which airline has a lounge in St Louis Lambert Airport?

    St. Louis Lambert Airport has about four lounges for guests to hang out and relax while waiting for their boarding call. The American Airlines Admirals Club is located Airside on Terminal 1 near Gate C1. The Wingtips Lounge, which is open to all travelers regardless of the airline, is located in Terminal 2 near Gate E22. Here you can find a range of snacks and beverages as well as a TV, charging stations, and Wi-Fi in case you need to send a few emails before boarding your flight.

  • What is the cheapest flight from St. Louis to Seattle?

    In the last 3 days, the lowest price for a flight from St. Louis to Seattle was $63 for a one-way ticket and $113 for a round-trip.

  • Do I need a passport to fly between St. Louis and Seattle?

    No

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Seattle?

    Alaska Airlines, and American Airlines offer inflight Wi-Fi service on the St. Louis to Seattle flight route.

  • Which aircraft models fly most regularly from St. Louis to Seattle?

    The Boeing 737 is the aircraft model that flies most regularly on the St. Louis to Seattle flight route.

  • Which airline alliances offer flights from St. Louis to Seattle?

    oneworld is the only airline alliance operating flights between St. Louis and Seattle.

  • On which days can I fly direct from St. Louis to Seattle?

    There are nonstop flights from St. Louis to Seattle on a daily basis.

  • Which is the best airline for flights from St. Louis to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Seattle are Alaska Airlines and Delta. With an average price for the route of $409 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $291 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from St. Louis to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from St. Louis to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $209 or less one-way and $396 or less round-trip.
  • If you’re looking for a way to cut down on the cost of tickets, consider booking connecting flights instead of a direct one. More often than not, airlines will charge lower prices for connecting flights on the same route.
  • While booking your flight, pay close attention to the in-flight services provided. This is because different flights will have varying services available even when they are facilitated by the same airline.
  • If you’re traveling with the kids, you’ll be happy to learn that Seattle Tacoma International Airport (SEA) has a child play area where the kids can play around as you clear with baggage claim. It is located on Concourse D next to Qdoba.
  • St Louis Lambert International Airport (STL) is a pet-friendly airport. If you’re traveling with a service animal or pet, there are multiple relief areas for the four-legged friends. You’ll find two on Concourse E close to Gate E4 while the other one is found on Concourse C near Gate C24.
  • If you need a private space to nurse your child at Seattle Airport, you should check out the nursing pods on Concourse A, near Gate A10E.
See more tips

Prefer to fly non-stop from St. Louis to Seattle?

Find which airlines fly direct from Lambert-St Louis Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Seattle/Tacoma Intl

Monday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Tuesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Wednesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Thursday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Friday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Saturday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Sunday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Lambert-St Louis

Monday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Tuesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +4 more

Air Tahiti Nui, Alaska Airlines, +5 more

Wednesday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Thursday

Air Tahiti Nui, Alaska Airlines, American Airlines, +4 more

Air Tahiti Nui, Alaska Airlines, +5 more

Friday

Air Tahiti Nui, Alaska Airlines, American Airlines, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

Saturday

Air Tahiti Nui, Alaska Airlines, American Airlines, +4 more

Air Tahiti Nui, Alaska Airlines, +5 more

Sunday

Air Tahiti Nui, Alaska Airlines, American Airlines, +4 more

Air Tahiti Nui, Alaska Airlines, +5 more

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to Seattle

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9420 reviews
8.2Boarding
8.6Crew
7.1Entertainment
7.2Food
7.9Comfort
Airline reviews

There isn't any food on that short flight. The plane had to be de-iced but it wasn't much dela

10.0 ExcellentAnonymous, Oct 2024YKM - SEA
Read more Alaska Airlines reviews

There isn't any food on that short flight. The plane had to be de-iced but it wasn't much dela

A review system on Kayak that would allow “NA” (Not Applicable) as an answer. For example, if food wasn’t ordered, I cannot say how good it might or might not have been.

Easy boarding, good staff, comfortable seats, easy ride. Also, friendly passengers!

I don't know what it is. But it seems that flights from Ontario to Seattle are always delayed. This one was delayed 3 hours. I guess I should just expect it from now on.

Your seats are too crowded! and you don't serve full meals on this 5 hour flight? Just rake in the profits.

FLL to SEA delayed one hour due to mechanical issue. Had to return to gate from runway.

I’m highly satisfied with Alaska over other airline experiences however the wifi kept kicking me off and the service was intermittent. I kept having to fool with it to get it to work.

As expected cyst service up front was very good we needed assistance at the gates and they were very accommodating

Indigo screens for passengers would have been nice but the free WiFi was nice

The boarding in Idaho Falls was terrific. The plane was a bit sad, and the snax were subpar. Mostly, I was just grossed out by the Alaska gates in Seattle. EW! Smelly and cramped and dingy!

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

I notice that every time I fly delta or any American carrier, the staff seem tired, overworked, and not at the service level I’m accustomed to in Asia. They frequently crash into my arm when coming down the aisle. Food is shoved at my face with no greeting or verbal cue. The food portions seemed much smaller than usual and didn’t see much wine or beverage options. This is comfort plus? The plane was old and tired. The bathroom was dripping with mineral stains after a long lack of cleaning. The power socket did not work, although the USB output did. I really wonder why I’m flying Delta, I think it’s time to switch to ANA.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

Screen didn’t play movies, do I was pretty boated the entire flight.

It was very cold because the air conditioner was on high power, and my son got sick.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

There was no air on the plane and it was very hot.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

Everything was awful Flight attendant was condescending, rude and not helpful at all. Small outdated plane. No service, uncomfortable seats. Flight attendant was really the worst. He used hand gestures to communicate instead of words and whenever he used words he was condescending.

They need to improve their boarding process. Group 1 and/or paying first class passengers shouldn't be in the middle of boarding process

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

This was a 5 hour flight with no entertainment and with a snack being provided (pretzels and fruit bar), which are both high in carbs and sugar. Nuts would have been a better choice.

Overall good. Tight connection in DFW because of gate unavailability upon landing.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

No food, no entertainment. But the flight was really short so maybe they had to skip drinks. I was able to board early ONLY because I am old and decrepit and they let me pre-board. I RESENT your dumping us into category 9 if we do not pay up. And when I paid for a seat I was STILL given 9. The pre-boarding helps. THIS flight was exceptionally smooth, please congratulate the pilots.

I love to flight american however my carry on had to be sent with regular luggage and it was broken. Don't appreciate that. If when I buy a ticket says I can take a carry on and a hand item there should be space for mwsy stuff and not be basically forced to send the item even if it's at no charge. A.A. needs to work on that. Everything else excellent.

Deparature was late, which is annoying but the arrival was fine and the baggage came early.

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The free internet access did not work, so we had to purchase 2 Internet packages. Flight attendants were not proactive in checking in with first class patrons

The flight attendants were talking the entire time on the back and I couldn’t even take a nap. Super annoying

11h50m total delay. Had to switch to another flight that was still a 7h30m delay.

A very good flight. All personnel were gracious and pleasant. Good flight. No complaints.

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There was no easy way to check in. I don't want to install an app to checkin. I will use alaska from now on because they have a web check in method that is easy.

The crew was ghetto lol I felt like I was on an inner city field trip

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

Delayed for two hours due to trivial issues. No reimbursment. Also on arrival further delay due to terminal malfunction.

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

I went to the Frontier counter in San Jose at 1030am or so on Sunday 10/13/24 to see if I could get an earlier flight to San Diego in lieu of my reserved 630pm flight. One thing led to another, and I was able to obtain an open seat for about $ 56. on the earlier flight. Fine. Then the agent asked if I "was checking a bag". Not knowing that carry-ons cost extra per Frontier policy, I thought that she meant a regular checked bag. Therefore, I said no. Once I got to the gate, the same gate agent who sold me a ticket told me that I had to pay $99 for a carry-on, and that all bags were extra on Frontier. Having never flown on Frontier, I was not aware of this. Part of the issue was that she was not a native English speaker, so there was a miscommunication as to what "bag" meant. I would have preferred for her to have clearly let me know at the front counter that any bag including a carry-on cost $99. It would have had the same outcome, as I had to take my carry-on. But it got hectic at the last minute at the gate itself. The baggage policy should have mentioned "including carry-ons" when we first spoke.

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Seattle found on KAYAK in the last 72 hours.
12/14Sat
1 stopFrontier
18h 43mSTL-SEA
$63
11/12Tue
1 stopFrontier
15h 38mSTL-SEA
$65
11/21Thu
1 stopDelta
10h 15mSTL-SEA
$98
11/7Thu
1 stopAmerican Airlines
7h 20mSTL-SEA
$108
11/21Thu
nonstopAlaska Airlines
4h 36mSTL-SEA
$119
11/19Tue
1 stopDelta
6h 44mSTL-SEA
$123
12/6Fri
nonstopAlaska Airlines
4h 40mSTL-SEA
$129
11/13Wed
2 stopsUnited Airlines
13h 40mSTL-SEA
$151
11/14Thu
2 stopsUnited Airlines
10h 31mSTL-SEA
$158
11/21Thu
nonstopAmerican Airlines
4h 36mSTL-SEA
$164

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Last minute flights from St. Louis to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Seattle that are departing in the next 10 days.
11/5Tue
multi-stopFrontier
15h 38mSTL-SEA
11/12Tue
multi-stopFrontier
11h 54mSEA-STL
$134
11/5Tue
multi-stopFrontier
15h 38mSTL-SEA
11/11Mon
multi-stopFrontier
7h 13mSEA-STL
$214
11/2Sat
multi-stopDelta
6h 37mSTL-SEA
11/9Sat
multi-stopDelta
6h 05mSEA-STL
$316
11/3Sun
multi-stopAmerican Airlines
9h 49mSTL-SEA
11/23Sat
multi-stopAmerican Airlines
7h 30mSEA-STL
$331
11/2Sat
multi-stopDelta
6h 37mSTL-SEA
11/11Mon
multi-stopDelta
6h 00mSEA-STL
$357
11/2Sat
multi-stopUnited Airlines
14h 20mSTL-SEA
11/10Sun
multi-stopUnited Airlines
9h 20mSEA-STL
$411
11/2Sat
multi-stopUnited Airlines
9h 43mSTL-SEA
11/3Sun
multi-stopUnited Airlines
9h 40mSEA-STL
$412
11/1Fri
multi-stopAmerican Airlines
7h 40mSTL-SEA
11/2Sat
multi-stopAmerican Airlines
6h 46mSEA-STL
$537
11/3Sun
nonstopAlaska Airlines
4h 35mSTL-SEA
11/10Sun
nonstopAlaska Airlines
3h 53mSEA-STL
$607
11/3Sun
nonstopAlaska Airlines
4h 36mSTL-SEA
11/10Sun
nonstopAlaska Airlines
3h 53mSEA-STL
$627

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Everything you need to know for your flight from St. Louis to Seattle

Information on your arrival and departure airports