STL - PSC

$244 Find Cheap Flights from St. Louis to Pasco

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 Pasco departing on 4/25. 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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Search hundreds of travel sites at once for deals on flights to Pasco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Pasco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Pasco, as well as popular online travel agencies
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Cheap Flight Deals from Lambert-St Louis to Tri Cities (STL-PSC)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Lambert-St Louis to Tri Cities that are departing in the next months. 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 Pasco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Pasco.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:59 pm - 11:50 pmSTL-PSC
6h 51m1 stop
5:10 pm - 12:38 amPSC-STL
5h 28m1 stop
$347Delta
Find Deal
Fri, Feb 21 - Mon, Feb 24
3:35 pm - 8:08 pmSTL-PSC
6h 33m1 stop
5:10 pm - 12:38 amPSC-STL
5h 28m1 stop
$373Delta
Find Deal
Thu, Feb 20 - Thu, Feb 27
3:35 pm - 8:08 pmSTL-PSC
6h 33m1 stop
5:00 am - 4:53 pmPSC-STL
9h 53m2 stops
$376Delta
Find Deal
Thu, Feb 20 - Thu, Feb 27
6:43 am - 4:29 pmSTL-PSC
11h 46m2 stops
5:00 am - 4:53 pmPSC-STL
9h 53m2 stops
$434Delta
Find Deal
Thu, Feb 20 - Thu, Feb 27
6:43 am - 4:29 pmSTL-PSC
11h 46m2 stops
5:00 am - 4:52 pmPSC-STL
9h 52m2 stops
$455Delta
Find Deal
Fri, Mar 7 - Tue, Mar 11
6:43 am - 4:29 pmSTL-PSC
11h 46m2 stops
12:35 pm - 9:06 pmPSC-STL
6h 31m1 stop
$461Delta
Find Deal
Fri, Mar 7 - Tue, Mar 11
6:44 am - 1:34 pmSTL-PSC
8h 50m1 stop
3:15 pm - 11:59 pmPSC-STL
6h 44m1 stop
$529American Airlines
Find Deal
Wed, Feb 5 - Sun, Feb 9
1:02 pm - 11:00 pmSTL-PSC
11h 58m2 stops
6:40 am - 6:59 pmPSC-STL
10h 19m1 stop
$534United Airlines
Find Deal
Wed, Feb 5 - Sun, Feb 9
9:44 am - 9:11 pmSTL-PSC
13h 27m2 stops
6:40 am - 8:43 pmPSC-STL
12h 03m2 stops
$564United Airlines
Find Deal
Wed, Feb 5 - Sun, Feb 9
6:29 am - 4:55 pmSTL-PSC
12h 26m2 stops
9:00 am - 11:07 pmPSC-STL
12h 07m2 stops
$622Alaska Airlines
Find Deal
Tue, Jul 8 - Mon, Jul 14

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

Get data-powered insights and trends into flights from St. Louis to Pasco 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 Pasco?

The average price of all round-trip flights from St. Louis to Pasco clicked on KAYAK for each day over the last 12 months.
When flying from St. Louis to Pasco, you should consider leaving on a Monday and avoid Thursdays 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 Pasco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Pasco, 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 Pasco is October, where tickets cost $326 (return) on average. On the other hand, the most expensive months are November and June, where the average cost of round-trip tickets is $678 and $677 respectively.

Good to know

Low season

April

High season

February

Cheapest flight

$244
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from St. Louis to Pasco

When to book flights from St. Louis to Pasco

Are your dates flexible? Find out the best times to travel from St. Louis to Pasco 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 Pasco

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

    In the last 3 days, the lowest price for a flight from St. Louis to Pasco was $244 for a one-way ticket and $347 for a round-trip.

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

    No

  • Which airports will I be using when flying from St. Louis to Pasco?

    St. Louis and Pasco are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Pasco Tri Cities.

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

    We unfortunately don’t have that data for this specific route.

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

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Pasco, with oneworld being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Pasco are Delta and Alaska Airlines. With an average price for the route of $485 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $501 and an overall rating of 8.0.

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

    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 Pasco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Pasco 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 Pasco?

    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 Pasco with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and PSC 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 Pasco?

    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 Pasco 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

Top 3 airlines serving from St. Louis to Pasco

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Pasco. 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 Pasco? 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 9706 reviews
7.9Comfort
8.5Crew
7.1Food
7.1Entertainment
8.2Boarding
Airline reviews

We don't have food or entertainment on this flight. We were late boarding but then arrived in Yakima early. Kayak sent me a delay notice but we weren't delayed.

8.0 ExcellentAnonymous, Jan 2025SEA - YKM
Read more Alaska Airlines reviews

We don't have food or entertainment on this flight. We were late boarding but then arrived in Yakima early. Kayak sent me a delay notice but we weren't delayed.

Nothing! I just didn't eat or use entertainment. I had three seats all to myself and it was wonderful!!!!

The kiosk for check in/bag check in. I liked the older version where you did everything on the kiosk (check in and bag tags). This time I needed to use my phone to check in and then scan the ticket from my phone to complete the bag tags. I didn't care for this new method. The older method was simpler.

Weather caused delays, but since I was in no hurry I asked to reschedule for any other day to make room for anyone in need of keeping their schedule. Alaska accommodated my request with an extra bonus - with a credit to my account for another day…. Always had great experience with the Alaska folks.

Overall it was a good flight. No issues. Alaska Airlines is always my first choice.

My seat was comfortable. There was no TV on the airplane.

On time (in fact, early). Easy boarding and getting off.

they took my carryon at the gate for free. Everything went smoothly.

It was delayed twice and they still want $8 for wifi so i had to sit for an hour.

Excellent flight and on time. Will fly with Alaska again in future

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

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.

Maybe add a seat trade app for flyers that didn’t get seats together

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

I liked all the informational texts. I always knew where to go and when .

Liked the hospitality . The ight took us 6 hrs to get from fort myers to ewr.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

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

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