$108 Find Cheap Flights from Seattle to Missouri

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 Missouri departing on 8/26. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Missouri

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Missouri.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Missouri.
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Flight Deals

Cheap Flights from Seattle to Missouri

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
St. Louis
St. Louis1 stop$354
Kansas City
Kansas Citynonstop$356
Springfield
Springfield1 stop$349
Columbia
Columbia1 stop$399
Joplin
Joplin1 stop$444
St. Louis
St. Louis1 stop$354
Kansas City
Kansas Citynonstop$356
Springfield
Springfield1 stop$349
Columbia
Columbia1 stop$399
Joplin
Joplin1 stop$444

Book Cheap Seattle to Missouri Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Missouri 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 Seattle to Missouri

Sat, Sep 26 - Sat, Oct 3
American Airlines Logo
10:59 am - 10:32 pm
SEA
-
SGF
9h 33m
1 stop
American Airlines Logo
2:25 pm - 9:52 pm
SGF
-
SEA
9h 27m
1 stop
$349American Airlines
Fri, Aug 7 - Mon, Aug 17
Frontier Logo
8:53 pm - 6:15 pm
SEA
-
STL
19h 22m
1 stop
Frontier Logo
7:10 pm - 10:35 am
STL
-
SEA
17h 25m
1 stop
$354Frontier
Thu, Sep 17 - Sun, Sep 20
Delta Logo
5:30 pm - 11:06 pm
SEA
-
MCI
3h 36mnonstop
Delta Logo
7:15 am - 9:10 am
MCI
-
SEA
3h 55mnonstop
$356Delta
Wed, Oct 14 - Mon, Oct 19
Alaska Airlines Logo
6:24 pm - 11:59 pm
SEA
-
MCI
3h 35mnonstop
Alaska Airlines Logo
6:13 am - 8:18 am
MCI
-
SEA
4h 05mnonstop
$357Alaska Airlines
Thu, Sep 17 - Sun, Sep 20
Delta Logo
5:30 pm - 11:06 pm
SEA
-
MCI
3h 36mnonstop
Delta Logo
6:05 pm - 11:59 pm
MCI
-
SEA
7h 54m
1 stop
$366Delta
Wed, Oct 14 - Mon, Oct 19
Alaska Airlines Logo
6:24 pm - 11:59 pm
SEA
-
MCI
3h 35mnonstop
Alaska Airlines Logo
6:12 pm - 10:25 pm
MCI
-
SEA
6h 13m
1 stop
$367Alaska Airlines
Tue, Aug 11 - Tue, Aug 18
United Airlines Logo
11:59 pm - 10:10 am
SEA
-
STL
8h 11m
1 stop
United Airlines Logo
5:10 am - 10:01 am
STL
-
SEA
6h 51m
1 stop
$369United Airlines
Tue, Aug 11 - Wed, Nov 25
United Airlines Logo
11:59 pm - 10:10 am
SEA
-
STL
8h 11m
1 stop
United Airlines Logo
5:18 pm - 10:29 pm
STL
-
SEA
7h 11m
1 stop
$374United Airlines
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
8:53 pm - 12:31 pm
SEA
-
SGF
13h 38m
1 stop
Multiple Airlines Logo
1:21 pm - 10:35 am
SGF
-
SEA
23h 14m
1 stop
$376Multiple Airlines
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
8:53 pm - 12:31 pm
SEA
-
SGF
13h 38m
1 stop
Multiple Airlines Logo
1:21 pm - 9:48 am
SGF
-
SEA
22h 27m
2 stops
$406Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Missouri flights

Get data-powered insights and trends into flights from Seattle to Missouri to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Missouri?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Missouri departing in September.

What is the cheapest Seattle to Missouri flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Missouri from Seattle found in the last 3 days was to St. Louis, at $275 round-trip. The most popular route is from Seattle (SEA) to Kansas City (MCI), and the cheapest round-trip airline ticket found on this route in the last 3 days was $288.

What is the cheapest time of day to fly to Missouri?

The average price for all round-trip flights from Seattle to Missouri depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Missouri is generally in the afternoon, when round-trip flights cost $283 on average. Morning departures are around 9% cheaper than evening flights, on average. The most expensive time of day to fly to Missouri is generally in the evening, which is peak travel time and where the average cost of a ticket is $457.

Can I save money by flying with a layover from Seattle to Missouri?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $363, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Seattle to Missouri?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Missouri, 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 Missouri is January, when tickets cost $88 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $176 and $168 respectively.

What’s the cheapest day of the week to fly from Seattle to Missouri?

The average price of all round-trip flights from Seattle to Missouri clicked on KAYAK for each day over the last 12 months.

For Seattle to Missouri, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Missouri back to Seattle, the best deals are generally found on Tuesday, with Sunday being the most expensive.

How far in advance should I book a flight from Seattle to Missouri?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Missouri, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Missouri, you should book around 4 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$108
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Seattle to St. Louis

Flights from Seattle to Missouri: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Seattle to Missouri 
Verified travelerFlew with Alaska Airlines
SEA
-
STL
Jul 2025
Give yourself extra time. Love the self check in options.
Verified travelerFlew with Alaska Airlines
SEA
-
MCI
Oct 2024
TSA lines in Seattle can get very long early in the day. Also, plan to return your rental car early since you have to take a shuttle bus to the terminal and those lines can get long early in the day, too. Currently there is construction in the North Terminal, so be prepared for moving around barriers. The day I flew out, the escalators were not working.
Verified travelerFlew with Alaska Airlines
SEA
-
STL
Feb 2024
Be sure to measure your wheels for carry on my luggage was the correct size but the wheels made it over so had to check my bag wasn't happy about that since you have to pay for checked should at least get one free.

FAQs - booking Missouri flights

  • How does KAYAK find such low prices on flights from Seattle to Missouri?

    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 Missouri.

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

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

    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 from Seattle to Missouri with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Missouri?

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

Reviews of the top 5 airlines serving from Seattle to Missouri

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Missouri. 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 Missouri? 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
SouthwestOverall score based on 4256 reviews
8.0Comfort
8.1Boarding
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

2.0 MediocreDawn, Jun 2026
BUF - BWI
Read more Southwest reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Super impressed by staff courtesy, and assistance, Flight was one of the best I've had despite turbulence... Will definitely be flying Alaskan air as my preferred choice

My boarding passes were pulled from my Apple wallet and my 3 family members who were all sitting together in the same row all got put middle seats and were one of the last to board and barely were able to get our bags in the luggage bins.

Was disappointed not to have known Alaska Air offers no music, no flight aware, no films.

I was surprised by everything. The cleanliness, the punctuality, the friendliness of the crew… and the Wi-Fi! Please keep up the good work.

The flight attendant and first class were very friendly, efficient, and wanted to make sure that service was great. Highly recommend this airline.

Thank you to everyone, the crew and pilots.. they were so amazing!!

Crew was so kind, flight was easy, thank you so much for everything

The plane was to narrow. Uncomfortable seats.. Kayak is Awesome!

I had to cancel this trip due to medical reasons. I took out flight insurance but I was unable to cancel my reservation on either Kayak or Alaska. I need proof that I did not take this flight to get my refund. I have tried for a week and a half together that information from either Kayak or Alaska but so far I have gotten no response. I am very disappointed!

We had paid for window seats just to not get window seats. When we ask the flight attendant to switch seats she said no because it was a full flight. It was the the worst experience I had ever.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Everything you need to know for your flight from Seattle to Missouri

Information on your arrival and departure airports