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Find cheap flights from St. Louis to Pasco from $331

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 5/10. 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
0 bags
Sat 6/1
Sat 6/8

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
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:34 pm - 8:57 pmSTL-PSC
8h 23m1 stop
5:03 am - 1:33 pmPSC-STL
6h 30m1 stop
$598Alaska Airlines
Find Deal
Fri, Sep 13 - Sun, Sep 15
7:31 pm - 11:53 pmSTL-PSC
6h 22m1 stop
6:59 pm - 9:00 amPSC-STL
12h 01m2 stops
$693Alaska Airlines
Find Deal
Fri, Sep 13 - Sun, Sep 15
9:50 am - 6:10 pmSTL-PSC
10h 20m2 stops
6:59 pm - 9:00 amPSC-STL
12h 01m2 stops
$748Alaska Airlines
Find Deal
Fri, Sep 13 - Sun, Sep 15
5:20 pm - 12:32 pmSTL-PSC
21h 12m3 stops
7:00 am - 10:07 amPSC-STL
25h 07m2 stops
$895United Airlines
Find Deal
Fri, Sep 13 - Sun, Sep 15

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 flights from St. Louis to Pasco clicked on KAYAK for each day over the last 12 months.
For St. Louis to Pasco, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Pasco back to St. Louis, the best deals are generally found on Sunday, with Wednesday being the most expensive.

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 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 $297 on average. On the other hand, the most expensive months are March and February, where the average cost of tickets is $846 and $757 respectively.

Which airlines provide the cheapest flights from St. Louis to Pasco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Pasco from St. Louis were found on United Airlines ($331) and Delta ($369), and the lowest round-trip tickets were found on Alaska Airlines ($598) and United Airlines ($895).

Good to know

Low season

January

High season

July

Cheapest flight

$331
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly with an average 28% 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 $331 for a one-way ticket and $598 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?

    Star Alliance, 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, 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 $457 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 $443 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 9123 reviews
7.3Food
7.9Comfort
8.6Crew
8.2Boarding
7.3Entertainment
Airline reviews

Expect to get miles for us having to miss our first planned flight due to them waiting on passengers that decided to be late to the airport.

6.0 GoodAnonymous, May 2024SEA - PSC
Read more about Alaska Airlines reviews

Expect to get miles for us having to miss our first planned flight due to them waiting on passengers that decided to be late to the airport.

Was not happy that we had to wait an additional 50 minutes for passengers that were still in TSA. This delay made us miss our connecting flight in Seattle to get home to tuck in our two little toddlers. We ran off the plane and ran across the entire airport trying to make this flight only to get to the gate to see that they have ended boarding. So they were willing to wait for passengers in Hawaii but not Seattle?? Especially when this wasn't even our fault. I expect to receive miles for missing our flight and spending an additional 4 hours in Seattle.

All parts were excellent, especially staff at bag tag printing and inflight crew. Just the normal differences from past air travel could be improved but we’ve learned to accept those—cramped seats, minimal food/beverage, etc.

Better organizing of entry and exit onto the plane regarding all of the baggage people haul on. There should be a better system so those with no baggage can get in and out more quickly. The baggage haul-on situation is absurd.

It was a great experience, although our seat was taken and we did not want to be rude and ask the person to move. Flight Attendants need to make sure that people should be in their assign sitting that are paid for. Other then that, we had a great flying experience with Alaska Airlines.

Too many people with oversized carry-ons. Uncomfortable seats. flight was too crowded.

Assigned last seat in row Did not recline at all Alaska Air seemed to have more leg room than my last few flights on United Yay!

The WIFI didn't work well enough to get through even 5 minutes of a movie I had selected (it just kept pausing and spinning), and I just gave up and read a book. The selection of movies was a little sparse though, so reading wasn't that bad of an option. This was an older 737-800, with undersized overhead bins -- but it doesn't make sense to me that we are told to slide our bags in with the wheels facing us (most people ignore that and put the handles facing us). This makes it more difficult to remove the bags (no handle). The flight went well, and the fruit/cheese platter I pre-ordered was good -- although it is a little annoying to have to pre-order for this (but I suppose it saves time). When I pre-order it automatically gets charged to my personal credit card (Alaska VISA), when I'd prefer to use my corporate card for that on business trips.

It was our baby’s first flight and everything went perfect. The flight attendant gave him his first set of wings and we were smooth flying from there.

My flight went off without any hitch or issue. I anticipate issues every time I fly, luckily, I was wrong on this trip.

Delta is one of the best airlines I have flown

Flight delayed about 2 hrs so it made it a VERY late night

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

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

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

Book cheap flights from St. Louis to Pasco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Pasco found on KAYAK in the last 72 hours.
5/10Fri
3 stopsUnited Airlines
21h 04mSTL-PSC
$331
5/10Fri
1 stopDelta
6h 54mSTL-PSC
$369
5/10Fri
2 stopsDelta
12h 00mSTL-PSC
$374

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Last minute flights from St. Louis to Pasco

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 Pasco that are departing in the next 10 days.
5/7Tue
multi-stopUnited Airlines
21h 32mSTL-PSC
5/11Sat
multi-stopUnited Airlines
21h 04mPSC-STL
$666
5/7Tue
multi-stopDelta
6h 54mSTL-PSC
5/11Sat
multi-stopDelta
5h 45mPSC-STL
$738
5/7Tue
multi-stopDelta
6h 54mSTL-PSC
5/11Sat
multi-stopDelta
8h 06mPSC-STL
$743
5/7Tue
multi-stopDelta
19h 21mSTL-PSC
5/11Sat
multi-stopDelta
5h 32mPSC-STL
$790
5/7Tue
multi-stopDelta
6h 48mSTL-PSC
5/11Sat
multi-stopDelta
5h 45mPSC-STL
$973

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St. Louis - Pasco Flights

Departure:

St. Louis (STL)United States

Destination:

Pasco (PSC)United States

Return flight deals:

Pasco - St. Louis

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