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SEA - STL

Find cheap flights from Seattle to St. Louis from $119

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to St. Louis departing on 4/29. 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 5/25
Sat 6/1

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to St. Louis.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to St. Louis.
In the last 7 days travelers have searched 45,119,101 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.

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Cheap flight deals from Seattle to St. Louis (SEA-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to St. Louis 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
12:40 am - 11:10 amSEA-STL
8h 30m1 stop
6:50 pm - 11:59 pmSTL-SEA
7h 09m1 stop
$227Delta
Find Deal
Mon, May 27 - Mon, Jun 3
9:49 pm - 9:36 amSEA-STL
9h 47m1 stop
7:41 pm - 10:00 pmSTL-SEA
4h 19mnonstop
Thu, May 30 - Wed, Jun 5
10:24 pm - 9:25 amSEA-STL
9h 01m1 stop
8:04 pm - 12:57 pmSTL-SEA
18h 53m2 stops
$231Frontier
Find Deal
Fri, May 31 - Mon, Jun 3
9:00 am - 10:49 pmSEA-STL
11h 49m1 stop
3:47 pm - 7:09 amSTL-SEA
17h 22m1 stop
$234Frontier
Find Deal
Sat, Jun 1 - Tue, Jun 11
7:37 am - 1:36 pmSEA-STL
3h 59mnonstop
7:41 pm - 10:00 pmSTL-SEA
4h 19mnonstop
$237Alaska Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8
7:37 am - 1:36 pmSEA-STL
3h 59mnonstop
7:41 pm - 10:00 pmSTL-SEA
4h 19mnonstop
$257Alaska Airlines
Find Deal
Thu, May 30 - Wed, Jun 5
12:59 am - 10:36 amSEA-STL
7h 37m1 stop
5:15 am - 12:38 pmSTL-SEA
9h 23m1 stop
$264American Airlines
Find Deal
Sun, Apr 28 - Thu, May 2
1:15 am - 12:31 pmSEA-STL
9h 16m1 stop
4:20 pm - 10:41 pmSTL-SEA
8h 21m1 stop
$285American Airlines
Find Deal
Fri, May 17 - Mon, May 20
7:00 am - 9:52 pmSEA-STL
12h 52m2 stops
5:25 pm - 10:34 pmSTL-SEA
7h 09m1 stop
$361United Airlines
Find Deal
Sun, Apr 28 - Fri, May 3
7:25 am - 9:09 pmSEA-STL
11h 44m2 stops
11:10 am - 6:45 pmSTL-SEA
9h 35m1 stop
$394United Airlines
Find Deal
Wed, May 8 - Thu, May 9

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

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

The average price of all flights from Seattle to St. Louis clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to St. Louis, look for departures on Tuesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from St. Louis, Thursday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to St. Louis, 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 Seattle to St. Louis is September, where tickets cost $297 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $494 and $463 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to St. Louis, 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 Seattle to St. Louis, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 50 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Seattle to St. Louis found on KAYAK was with Frontier for $119. Delta proposed a round-trip connection from $227 and Frontier from $231.

Which airlines fly non-stop between Seattle and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to St. Louis.
There is just one airline that flies from Seattle to St. Louis direct and that is Alaska Airlines. The best one-way deal found from Alaska Airlines for the route is $186.

How many flights are there between Seattle and St. Louis per day?

Each day, there are between 5 and 8 nonstop flights that take off from Seattle and land in St. Louis, with an average flight time of 3h 59m. The most common departure time is 7:00 am and most flights take off in the morning. Each week, there are 42 flights. The most frequent day of departure is Thursday, when 19% of all weekly flights depart. The fewest flights depart on a Friday.

Which cabin class options are there for flights between Seattle and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are First, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Seattle to St. Louis take?

Nonstop flights from Seattle generally make it to St. Louis in 3h 49m. The flying distance between the two cities is 1,704 miles.

What’s the earliest departure time from Seattle to St. Louis?

Early birds can take the earliest flight from Seattle at 7:24 am and will be landing in St. Louis at 1:23 pm.

What’s the latest departure time from Seattle to St. Louis?

If you prefer to fly at night, the latest flight from Seattle to St. Louis jets off at 6:03 pm and lands at 11:59 pm.

Good to know

Low season

January

High season

November

Cheapest flight

$119
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Seattle to St. Louis

When to book flights from Seattle to St. Louis

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

  • Where can I find car rentals from St. Louis Lambert International Airport (STL)?

    The use of car rentals is one of the most efficient methods of connecting travelers from STL Airport to the city center and St. Louis downtown. Car Rental Town-Saint Louis Airport is one car rental agency that provides affordable services to travelers arriving at STL Airport in St. Louis. This agency is located in STL Airport, along terminal 1.

  • How can I connect to St. Louis downtown from STL Airport?

    The use of the Metrolink bus system is the most efficient and inexpensive method of connecting travelers to St. Louis downtown from STL Airport. Travelers connecting to St. Louis downtown from STL Airport pay approximately $4.00 on Metrolink buses. Apart from buses, travelers can also use rental cars to connect to St. Louis downtown from STL Airport. Consider renting a car at Car Rental Town-Saint Louis Airport Agency.

  • Are there kid-friendly amenities on flights from Seattle to St. Louis?

    The availability of on-demand kid-friendly entertainment options on American Airlines makes it the most preferred airline for travelers flying from Seattle to St. Louis in the company of their kids. This airline offers free in-flight WI-FI services, which allows your kids to stream their favorite video games, TV shows, and music albums, eliminating boredom.

  • Which hotel can I stay in from STL Airport in St. Louis?

    There are several hotels where travelers landing at STL Airport can stay. One hotel that is easily accessible to travelers from STL Airport is the Quality Inn Airport. This hotel is located along Natural Bridge Rd, St. Louis, and it provides free airport shuttle services to customers.

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

    In the last 3 days, the lowest price for a flight from Seattle to St. Louis was $119 for a one-way ticket and $227 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    On your way to St. Louis, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at Lambert-St Louis.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to St. Louis are Alaska Airlines and Delta. With an average price for the route of $366 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 $297 and an overall rating of 8.0.

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

    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 Seattle to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Seattle 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 Seattle to St. Louis?

    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 St. Louis with an airline and back to Seattle with another airline. Booking your flights between Seattle and STL 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 Seattle to St. Louis?

    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 St. Louis from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from SEA to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $223 or less one-way and $316 or less round-trip.
  • Despite having other airports that serve similar flights from Seattle to St. Louis, like Renton Municipal Airport and King County International Airport, travelers from Seattle prefer using Seattle-Tacoma International Airport (SEA) as their departure airport to St. Louis. This airport is widely preferred due to the availability of several cheaper means of transport that connect travelers from the city center and Seattle downtown to the airport, such as taxis, buses, and airport shuttles.
  • Travelers who plan to catch the earliest flight that departs SEA Airport for St. Louis should consider spending their night in a nearby hotel. One hotel that guarantees travelers quick access to SEA Airport is the DoubleTree by Hilton Hotel Seattle Airport. This hotel is located along International Blvd, Seattle, a 4min drive from SEA Airport and offers airport shuttle services.
  • Are you planning to travel from Seattle to St. Louis in the company of a person with reduced mobility? Worry no more. SEA Airport offers curb-to-aircraft services to persons with reduced mobility. All airlines serving flights from SEA Airport to St. Louis, like American Airlines, Qatar Airways, and Southwest, have deployed personnel across the airport to assist persons with reduced mobility.
  • Travelers who wish to shop before taking a flight from Seattle to St. Louis shouldn’t get worried. SeaTac Shopping Mall is one shopping mall that offers quality and affordable products to travelers flying from SEA Airport in Seattle. This shopping mall is located along International Blvd, SeaTac, just a walking distance from SEA Airport.
  • If you plan to take care of your stomach and have some rest as you wait for your flight from SEA Airport to St. Louis, consider visiting Dish D'lish Restaurant. Dish D'lish is one restaurant that offers the best food at an affordable price to travelers at SEA Airport as they wait for their flights to St. Louis.
See more tips

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

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

Nonstop departures

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, +5 more

Air Tahiti Nui, Alaska Airlines, +6 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, +5 more

Air Tahiti Nui, Alaska Airlines, +6 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, +5 more

Air Tahiti Nui, Alaska Airlines, +6 more

Sunday

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

Air Tahiti Nui, Alaska Airlines, +5 more

See more direct flights

Nonstop returns

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, +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, +3 more

Air Tahiti Nui, Alaska Airlines, +4 more

See more direct flights
See more direct flights

Top 5 airlines serving from Seattle to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Seattle to St. Louis. 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 Seattle to St. Louis? 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 9110 reviews
7.9comfort
7.3food
8.2boarding
7.3entertainment
8.6crew
Airline reviews

Flight was good. Glad it was delayed or I may have missed the connection since I got to Seattle at about the same time my connection was to leave. The snack was a small bag of pretzels and a small soda. Can’t really call that food. There was no entertainment available on the flight.

8.0 ExcellentAnonymous, Apr 2024SEA - TUS
Read more about Alaska Airlines reviews

Flight was good. Glad it was delayed or I may have missed the connection since I got to Seattle at about the same time my connection was to leave. The snack was a small bag of pretzels and a small soda. Can’t really call that food. There was no entertainment available on the flight.

Same as the earlier flight. Bad boarding practices, uncomfortable seats, and no Wi-Fi service.

Everything was good. One of the flight attendants was not very friendly

Text and wifi were paywalled. I'm not looking for something fast, but not getting a text for ride coordination until back at the gate was a pain.

It was not a great flight. There was a software update delay which had us on the ground for almost 2 hours. I was unable to make my shuttle to my final destination.

Good. Quiet. Comfortable. The protests nearly kept me from catching my flight. They waited for me! I made it!

Red eye flight, so not expecting any extras, but the boarding and trip was smooth. Thx Alaska.

Received little assistance with air sick child. Crew’s main concern was if anything got on the seat belt!

Flight was excellent! Comfortable seats. Flew out of IND. very friendly crew!

It was fine… Just overbooked every seat was taken and very bumpy nothing they could do about that. Overall I like to fly Alaska airlines

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

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

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

they made me check my carryon. There was space in the overhead bins.

Nice flight, nice crew but no cookie or napkin with my seltzer.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

Missed the flight because of them and up geting a rental car

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Book cheap flights from Seattle to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to St. Louis found on KAYAK in the last 72 hours.
4/29Mon
1 stopFrontier
22h 59mSEA-STL
$119
6/29Sat
1 stopFrontier
10h 00mSEA-STL
$120
4/28Sun
1 stopAmerican Airlines
7h 37mSEA-STL
$133
4/29Mon
2 stopsUnited Airlines
13h 08mSEA-STL
$138
6/2Sun
nonstopAlaska Airlines
4h 01mSEA-STL
$159
6/1Sat
1 stopAmerican Airlines
7h 22mSEA-STL
$168
6/4Tue
2 stopsAlaska Airlines
12h 33mSEA-STL
$178
4/30Tue
2 stopsUnited Airlines
13h 11mSEA-STL
$183
5/1Wed
1 stopDelta
8h 24mSEA-STL
$209
6/26Wed
1 stopDelta
5h 25mSEA-STL
$404

Search by stops

Search by airline

Search by price

Last minute flights from Seattle to St. Louis

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 Seattle to St. Louis that are departing in the next 10 days.
4/29Mon
multi-stopFrontier
9h 08mSEA-STL
5/2Thu
multi-stopFrontier
25h 39mSTL-SEA
$218
4/28Sun
multi-stopFrontier
9h 17mSEA-STL
5/3Fri
multi-stopFrontier
13h 03mSTL-SEA
$256
4/26Fri
multi-stopAmerican Airlines
8h 56mSEA-STL
4/28Sun
multi-stopAmerican Airlines
9h 23mSTL-SEA
$263
4/28Sun
multi-stopAmerican Airlines
7h 37mSEA-STL
5/2Thu
multi-stopAmerican Airlines
9h 23mSTL-SEA
$264
4/27Sat
multi-stopDelta
8h 05mSEA-STL
4/30Tue
multi-stopDelta
7h 06mSTL-SEA
$266
4/27Sat
multi-stopUnited Airlines
7h 08mSEA-STL
4/30Tue
multi-stopUnited Airlines
11h 23mSTL-SEA
$356
4/28Sun
multi-stopUnited Airlines
12h 52mSEA-STL
5/3Fri
multi-stopUnited Airlines
7h 09mSTL-SEA
$361
4/29Mon
multi-stopAmerican Airlines
6h 49mSEA-STL
5/2Thu
nonstopAmerican Airlines
4h 25mSTL-SEA
$471
4/27Sat
nonstopAlaska Airlines
3h 56mSEA-STL
4/30Tue
nonstopAlaska Airlines
4h 25mSTL-SEA
$657
4/27Sat
multi-stopAlaska Airlines
8h 59mSEA-STL
4/30Tue
nonstopAlaska Airlines
4h 25mSTL-SEA
$756

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Seattle - St. Louis Flights

Departure:

Seattle (SEA)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Seattle

Cabin classes:

$1,936
$906
$1,122
$250