$71 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 4/24. 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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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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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$154
Kansas City
Kansas City1 stop$201
Springfield
Springfield1 stop$309
Columbia
Columbia1 stop$347
Joplin
Joplin1 stop$394
St. Louis
St. Louis1 stop$154
Kansas City
Kansas City1 stop$201
Springfield
Springfield1 stop$309
Columbia
Columbia1 stop$347
Joplin
Joplin1 stop$394

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

Wed, Apr 22 - Fri, May 1
Frontier Logo
6:57 pm - 7:12 pm
SEA
-
STL
22h 15m
1 stop
Frontier Logo
8:12 pm - 9:27 am
STL
-
SEA
15h 15m
1 stop
$154Frontier
Tue, Mar 3 - Wed, Mar 4
American Airlines Logo
6:44 am - 3:28 pm
SEA
-
STL
6h 44m
1 stop
American Airlines Logo
5:12 am - 10:55 am
STL
-
SEA
7h 43m
1 stop
$159American Airlines
Sun, Apr 19 - Wed, Apr 29
Delta Logo
1:30 pm - 12:25 am
SEA
-
STL
8h 55m
1 stop
Delta Logo
2:20 pm - 6:30 pm
STL
-
SEA
6h 10m
1 stop
$177Delta
Mon, Apr 20 - Fri, Apr 24
Delta Logo
9:50 am - 5:26 pm
SEA
-
STL
5h 36m
1 stop
Delta Logo
6:45 pm - 11:59 pm
STL
-
SEA
7h 14m
1 stop
$187Delta
Thu, Apr 23 - Mon, Apr 27
Alaska Airlines Logo
6:21 pm - 11:59 pm
SEA
-
MCI
3h 38mnonstop
Alaska Airlines Logo
7:00 am - 9:03 am
MCI
-
SEA
4h 03mnonstop
$227Alaska Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
12:34 pm - 11:52 pm
SEA
-
MCI
9h 18m
2 stops
United Airlines Logo
5:17 pm - 9:06 pm
MCI
-
SEA
5h 49m
1 stop
$232United Airlines
Sat, May 2 - Mon, May 4
Alaska Airlines Logo
8:25 am - 4:17 pm
SEA
-
MCI
5h 52m
1 stop
Alaska Airlines Logo
5:11 pm - 9:26 pm
MCI
-
SEA
6h 15m
1 stop
$237Alaska Airlines
Fri, Feb 27 - Tue, Mar 3
Multiple Airlines Logo
12:00 pm - 7:48 pm
SEA
-
MCI
5h 48m
1 stop
Multiple Airlines Logo
5:16 pm - 10:18 pm
MCI
-
SEA
7h 02m
1 stop
$240Multiple Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
12:15 pm - 11:07 pm
SEA
-
MCI
8h 52m
2 stops
United Airlines Logo
6:00 am - 9:49 am
MCI
-
SEA
5h 49m
1 stop
$242United Airlines
Sun, Feb 22 - Thu, Feb 26
Multiple Airlines Logo
7:55 am - 8:50 pm
SEA
-
UIN
10h 55m
1 stop
Multiple Airlines Logo
9:50 am - 8:16 pm
UIN
-
SEA
12h 26m
1 stop
$495Multiple 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.

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 72 hours was to Kansas City, at $157 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 72 hours was $157.

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 $278, 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 $237 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $523 and $457 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 3 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$71
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Seattle to Kansas City

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.

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

    The cheapest time of day to fly to Missouri is generally in the afternoon, when round-trip flights cost $269 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Missouri is generally in the morning, which is peak travel time and where the average cost of a ticket is $413.

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
Alaska AirlinesOverall score based on 11871 reviews
7.0Entertainment
7.8Comfort
8.1Boarding
7.1Food
8.5Crew
Airline reviews

I enjoyed the movie selection. I’m glad I saw ahead of time to bring personal ear buds. I don’t normally have them with me and airlines used to give them out.

8.0 ExcellentAnonymous, Feb 2026
SEA - DTW
Read more Alaska Airlines reviews

I enjoyed the movie selection. I’m glad I saw ahead of time to bring personal ear buds. I don’t normally have them with me and airlines used to give them out.

man & woman back side flight attendant was very rude. I live in Seattle. I use a lot of time Alaska flights. I always like them for fact that my favorite airline employees very rude. It’s disappointing. .

Great experience, staff and crew were very professional, friendly and helpful!

I think Alaska should start including free meals on these longer trips.

Wheelchair assistance was excellent. I had a saver fare, but was given a seat in Premium. So very nice!! Extra legroom, complimentary beer. The flight crew was very nice and efficient. The gate agent in Seattle double checked to make sure I was able to board the plane all right while using my cane. I boarded first. So considerate! The flight was smooth, and right on time.

There is nothing critical to complain about but I would say the snacks are pretty bad Airline staff could be aggressive the way they move through the aisles and the plane I also got hustled for a small wallet size men bag and force the consolidated with my carry on item we're talking about a wallet size bag.

Departed on time and had an efficient boarding process. The inflight wifi was not working on one of the flights.

How can I review what was denied to me. Instead of offering to let me pay for the ticket I got booted of my flight with no way home and no choice but to purchase another ticket for 12 hours later. Filing a complaint with the DOT

From Las Vegas to Boise all went well. However, our flight was delayed in Boise and I missed my connecting flight from Seattle to Pasco. Moreover, the last flight to Pasco was full and I was booked on the 11:30 flight Sunday and given a hotel accommodation. However, I was scheduled to deliver the Sunday morning service at my church and needed to arrive no later than 10:00. Therefore, I booked a Delta flight scheduled to arrive in Pasco at 23:09. My piece of luggage checked in Las Vegas arrived in Pasco earlier today. I waited at the airport for over an hour last night to speak with an Alaska agent to no avail. I went back after church this morning in search of my piece of luggage and it could not be located. After waiting for 40 minutes to speak to the agent authorized to take my claim, he announced that he was closing the counter to assist on the flight line but not before providing me with a telephone number that would help me with filing my claim. Before I was able to make the call (due to other factors) I received a call from Alaska agent informing me that my luggage had just arrived and I am now waiting for it to be delivered. I deliberately took the more complicated route home to ensure that I would be home in plenty of time to prepare for myself for the Sunday service and accommodate my relatives’ needs. I believe the airport is undermanned given the number of flights coming in and going out. It was fiasco last night with three flights waiting for luggage and another flight landing within minutes. Today’s problems stemmed from a lack of cross training and a serious amount of cargo/baggage going out and too few people scheduled to cover.

The cabin crew was absolutely wonderful, the service was great and it was just a good flight overall.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

No wheel chair as requested at Atlanta arrival on first flight.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Only water, tea or coffee served midflight, even to comfort seating. Man next to me needed two seats and took up a portion of my seat and Delta did nothing.

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

There was no wifi available at any price -- the plane did not have wifi equipment. Movie choices were blah - hits from the past; nothing recent. The food was blah airplane food. They should have had Mai Tai drinks available as per the Hawaiian Airlines magazine, but they had none onboard.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

Flight was on time and the meal and service were good.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

This was a horrible experience. I’ve experienced several delays at this point and still not home. I was supposed to be home by 8:30 last night and here I sit at 7 am on a plane STILL unable to go home because of American Airlines.

Generally good. Flight left on time and the seats are comfortable. Plenty of space in front if you in you choose a comfort plus seat, completely worth spending the extra money given the amount of hours the flight lasts. The food tastes good but I would say it’s a the amount is too little. The crew was friendly and efficient. There was a some turbulence at different points into the flight. American Airlines has good deals to NZ if you book with plenty of time before you plan on going.

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

They are always late and seats was also not having working charger

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

did not have enough meal for first class passengers so offer us snack

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

Information on your arrival and departure airports