STL - PSC

$264 Find Cheap Flights from St. Louis to Pasco - Compare and Save

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 8/31. 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.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$435
Typical prices: $431-$466
Delta
Sat 10/31Tue 11/3
STL - PSC • 1 stop
Cheapest one-way
$264
Alaska Airlines
Mon 8/31
STL - PSC • 1 stop
Top airlines
Cheapest • from $435 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Pasco. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $444 (round-trip)
Shortest trip • 6h 13m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Pasco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Sat, Oct 31 - Tue, Nov 3
Delta Logo
5:00 pm - 9:41 pm
STL
-
PSC
6h 41m
1 stop
Delta Logo
6:00 am - 1:32 pm
PSC
-
STL
5h 32m
1 stop
$435Delta
Wed, Sep 23 - Wed, Sep 30
Alaska Airlines Logo
6:29 am - 1:27 pm
STL
-
PSC
8h 58m
1 stop
Alaska Airlines Logo
5:20 am - 5:10 pm
PSC
-
STL
9h 50m
1 stop
$435Alaska Airlines
Wed, Sep 16 - Tue, Sep 22
Alaska Airlines Logo
6:08 pm - 10:48 pm
STL
-
PSC
6h 40m
1 stop
Alaska Airlines Logo
2:04 pm - 2:21 pm
PSC
-
STL
22h 17m
1 stop
$435Alaska Airlines
Wed, Sep 16 - Tue, Sep 22
Alaska Airlines Logo
6:08 pm - 10:48 pm
STL
-
PSC
6h 40m
1 stop
Alaska Airlines Logo
5:29 pm - 2:21 pm
PSC
-
STL
18h 52m
1 stop
$435Alaska Airlines
Wed, Sep 16 - Tue, Sep 22
American Airlines Logo
8:00 am - 2:51 pm
STL
-
PSC
8h 51m
1 stop
American Airlines Logo
5:05 am - 7:07 pm
PSC
-
STL
12h 02m
2 stops
$440American Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
8:30 am - 8:58 pm
STL
-
PSC
14h 28m
2 stops
United Airlines Logo
5:10 am - 12:38 pm
PSC
-
STL
5h 28m
1 stop
$440United Airlines
Wed, Sep 16 - Tue, Sep 22
American Airlines Logo
5:43 am - 2:51 pm
STL
-
PSC
11h 08m
2 stops
American Airlines Logo
5:05 am - 7:07 pm
PSC
-
STL
12h 02m
2 stops
$445American Airlines
Sat, Oct 31 - Tue, Nov 3
American Airlines Logo
8:48 am - 4:40 pm
STL
-
PSC
9h 52m
2 stops
American Airlines Logo
5:03 am - 5:54 pm
PSC
-
STL
10h 51m
2 stops
$445American Airlines
Tue, Nov 10 - Sat, Nov 14
Alaska Airlines Logo
7:00 am - 1:12 pm
STL
-
PSC
8h 12m
1 stop
Alaska Airlines Logo
6:01 am - 2:15 pm
PSC
-
STL
6h 14m
1 stop
$453Alaska Airlines
Wed, Nov 25 - Sat, Nov 28
Delta Logo
7:55 pm - 11:45 pm
STL
-
PSC
5h 50m
1 stop
Delta Logo
7:05 am - 4:54 pm
PSC
-
STL
7h 49m
1 stop
$687Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Pasco flights

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 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 January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are August and May, where the average cost of round-trip tickets is $987 and $600 respectively.

Good to know

Low season

October

Cheapest flight

$264
Best time to beat the crowds with an average 23% drop 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 5 days, the lowest price for a flight from St. Louis to Pasco was $264 for a one-way ticket and $435 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?

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Pasco are Alaska Airlines and Delta. With an average price for the route of $600 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $492 and an overall rating of 7.8.

  • 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.

Reviews of the 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.
7.9
Alaska AirlinesOverall score based on 12723 reviews
7.0Entertainment
8.5Crew
8.1Boarding
7.8Comfort
7.0Food
Airline reviews

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

2.0 MediocreAnonymous, May 2026
STL - SEA
Read more Alaska Airlines reviews

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

We took off on time and rose into the wild blue yonder safely, and landed at our destination safely eighteen minutes early. In between we enjoyed a smooth flight and wonderful service by a great crew. Flight attendants and pilots made sure the trip was a memorable and happy experience. Can’t beat that!

There was no food or entertainment. I was in the middle seat which was uncomfortable. The flight and crew were fine.

Much better experience than at SeaTac. No one yelled….all nice The microphone was working for boarding….unlike SeaTac BIGGEST BUMMER….GOT SEATED BACK BY THE BATHROOMS AND YOU IT SMELLED THE WHOLE TRIP. A BLESSING….is they … Left the lights and air on until we were unloaded….UNLIKE SEATAC TO ST. LOUIS….THEY TURNED THE LIGHTS AND AIR OFF IN ALMOST 100 degree weather…IT SUCKED!

We were lucky to be seated in an upgraded row and received free drinks!!

I understand bottom line but..... You have to get more room in the seats. Why not give full cans for the drink service, little things go a long way. Thank you

The plane was clean. The flight crew was friendly and helpful. The flight was smooth and the pilots kept everyone informed of our status, etc. It was my first flight on Alaska Airlines and it was great. I'll be choosing them again in the future.

The crew was excellent. The seats were very good. The flight crew kept us informed about environmental items, Yellowstone eg. Passengers were on time so all times were excellent.

Crew was friendly and professional. Offered multiple drink services. Handled this full flight with style and grace.

I have a panic disorder and they were accommodating by letting me board with the 1st group

Not really a “Delta” problem but worth mentioning: Boarding was a difficult process. TSA seemed understaffed and Pre-Check took longer than regular TSA. The supervisor was frazzled and yelled at travelers. Once through TSA, we had to put our carry-ons through another x-ray machine. Then queue up to board with both boarding pass and ID. Then, when we got to the stairs on the tarmac, we had to show our boarding pass again. Maybe this is just normal for Kona since the terminal is outdoors (but still a “secured” area).

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

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

Information on your arrival and departure airports