STL - PSC

$271 Find Cheap Flights from St. Louis to Pasco

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Pasco departing on 3/18. 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 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 St. Louis to Pasco (STL-PSC)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Pasco 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
1:48 pm - 11:59 pmSTL-PSC
12h 11m2 stops
11:32 am - 9:06 pmPSC-STL
7h 34m2 stops
$271Delta
Find Deal
Tue, Mar 18 - Tue, Mar 25
7:40 am - 11:53 amSTL-PSC
6h 13m1 stop
11:32 am - 11:26 pmPSC-STL
9h 54m2 stops
$276Delta
Find Deal
Tue, Mar 18 - Tue, Mar 25
7:25 am - 1:35 pmSTL-PSC
8h 10m1 stop
3:15 pm - 11:58 pmPSC-STL
6h 43m1 stop
$307American Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25
7:40 am - 11:53 amSTL-PSC
6h 13m1 stop
5:11 pm - 12:32 amPSC-STL
5h 21m1 stop
$363Delta
Find Deal
Fri, Mar 21 - Mon, Mar 24
3:11 pm - 9:08 pmSTL-PSC
7h 57m1 stop
7:23 am - 11:59 pmPSC-STL
38h 36m2 stops
$433Alaska Airlines
Find Deal
Fri, Mar 21 - Mon, Mar 24
7:40 am - 4:31 pmSTL-PSC
10h 51m2 stops
5:11 pm - 12:32 amPSC-STL
5h 21m1 stop
$451Delta
Find Deal
Fri, Mar 21 - Mon, Mar 24
7:30 pm - 11:49 pmSTL-PSC
6h 19m1 stop
3:45 pm - 11:56 pmPSC-STL
6h 11m1 stop
$537Hawaiian Airlines
Find Deal
Tue, Jul 8 - Mon, Jul 14
3:11 pm - 10:42 pmSTL-PSC
33h 31m2 stops
7:23 am - 11:59 pmPSC-STL
38h 36m2 stops
$549Alaska Airlines
Find Deal
Fri, Mar 21 - Mon, Mar 24
7:30 pm - 11:49 pmSTL-PSC
6h 19m1 stop
3:45 pm - 11:56 pmPSC-STL
6h 11m1 stop
$576Hawaiian Airlines
Find Deal
Thu, Jun 12 - Mon, Jun 16
7:30 am - 11:30 pmSTL-PSC
18h 00m2 stops
12:50 pm - 3:31 pmPSC-STL
24h 41m3 stops
$610United Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25

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 Wednesday and avoid Thursdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Thursdays 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 February and November, where the average cost of round-trip tickets is $1,750 and $678 respectively.

Good to know

Low season

February

High season

October

Cheapest flight

$271
Best time to beat the crowds but there is an average 180% increase in price.
Most popular time to fly and prices are also 48% lower on average.
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 $295 for a one-way ticket and $271 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 $588 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 $533 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 airlines flying 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 9691 reviews
7.9Comfort
8.2Boarding
7.1Food
8.5Crew
7.1Entertainment
Airline reviews

Flight was delayed about 45 min and they never offered an explanation. Peruse, staff were friendly and competent and the flight was safe.

8.0 ExcellentDavid, Feb 2025AUS - SEA
Read more Alaska Airlines reviews

Flight was delayed about 45 min and they never offered an explanation. Peruse, staff were friendly and competent and the flight was safe.

No TSA pre check on boarding passes. Was told known traveler numbers are only kept with Alaska Airlines mileage plan members. Did not notice until reached the head of line, and then was sent back through the line to general boarding which took almost an hour. Learned two things: check our boarding passes, which we haven’t had to do with our other airlines, and don’t fly Alaska! You used to be much better!

The would have rated higher, but I asked for a cup of coffee twice and never got one. Later found the crew sitting in the back having a meal and visiting. Just saying.

The flight was canceled so i booked another flight with Delta, so essentially there was absolutely nothing that i enjoyed about my experience with this flight

You guys are always have delays and then leaving us on the tarmac for 15-20 min. FIGURE IT OUT!

Flight cancelled. Bad service at customer service line. Missed dr appointment

Probably the worst 1st Class I have ever experienced. Sam, our flight attendant, was excellent. Other than that, everything from the Alaska Longe experience to the buggy app to the uncomfortable flight and uncommunicative agents were poor. The agent who booked us in forgot to mark TSA PreCheck on our boarding passes and we had to go back to get this done. They were a cut below every other airline we have experienced in just about every area.

my first time with Alaska Airlines, an exceptional airline with great employees.

The plane was late arriving at the airport which in turn we left late. I had to literally run to my next gate to catch my connecting flight and my luggage did not show up at my final destination.

Seattle flight to Walla Walla has a confusing doorway system . Small signs once you leave gate area to tarmac. Almost went the wrong way to my plane.

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

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.

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

Information on your arrival and departure airports

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