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Cheap flights from Seattle to Missouri from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Missouri departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Seattle to Missouri

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:12 pm - 2:06 pm
SEA
-
MCI
16h 54m
1 stop
Frontier Logo
2:51 pm - 9:27 am
MCI
-
SEA
20h 36m
1 stop
$191Frontier
Fri, Apr 17 - Sat, Apr 25
Frontier Logo
7:12 pm - 1:30 pm
SEA
-
MCI
16h 18m
1 stop
Frontier Logo
2:51 pm - 9:27 am
MCI
-
SEA
20h 36m
1 stop
$216Frontier
Wed, Apr 22 - Sat, Apr 25
Frontier Logo
7:12 pm - 2:06 pm
SEA
-
MCI
16h 54m
1 stop
Frontier Logo
2:15 pm - 9:49 am
MCI
-
SEA
21h 34m
1 stop
$221Frontier
Fri, May 1 - Mon, May 4
Southwest Logo
12:55 pm - 12:15 am
SEA
-
STL
9h 20m
2 stops
Southwest Logo
1:45 pm - 12:05 am
STL
-
SEA
12h 20m
1 stop
$272Southwest
Thu, Apr 16 - Thu, Apr 23
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
$273Delta
Thu, Apr 16 - Tue, Apr 21
Alaska Airlines Logo
5:57 pm - 11:59 pm
SEA
-
STL
4h 02mnonstop
Alaska Airlines Logo
4:46 pm - 7:15 pm
STL
-
SEA
4h 29mnonstop
$277Alaska Airlines
Tue, May 5 - Wed, May 6
Southwest Logo
12:55 pm - 12:30 am
SEA
-
STL
9h 35m
2 stops
Southwest Logo
5:45 am - 11:20 am
STL
-
SEA
7h 35m
1 stop
$278Southwest
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
10:25 am - 7:13 pm
SEA
-
COU
6h 48m
1 stop
American Airlines Logo
4:28 pm - 12:36 am
COU
-
SEA
10h 08m
1 stop
$358American Airlines
Fri, May 1 - Fri, May 8
American Airlines Logo
5:05 am - 3:17 pm
SEA
-
SGF
8h 12m
1 stop
American Airlines Logo
2:22 pm - 7:24 pm
SGF
-
SEA
7h 02m
1 stop
$369American Airlines
Sat, Sep 26 - Sat, Oct 3
Delta Logo
11:15 pm - 11:01 am
SEA
-
SGF
9h 46m
1 stop
Delta Logo
3:59 pm - 10:05 pm
SGF
-
SEA
8h 06m
1 stop
$394Delta
Fri, Apr 17 - Tue, Apr 21

Delta flights from Seattle to Missouri

Our best Delta deals on Seattle to Missouri flight tickets
Delta
Apr 16
SEA1:30 pmSeattle/Tacoma Intl
8h 55m
1 stop
STL12:25 amLambert-St Louis
Apr 21
STL2:20 pmLambert-St Louis
6h 10m
1 stop
SEA6:30 pmSeattle/Tacoma Intl
$273
Delta
Aug 12
SEA5:45 amSeattle/Tacoma Intl
5h 36m
1 stop
STL1:21 pmLambert-St Louis
Aug 20
STL6:59 pmLambert-St Louis
7h 02m
1 stop
SEA12:01 amSeattle/Tacoma Intl
$294
Delta
Apr 21
SEA1:30 pmSeattle/Tacoma Intl
8h 55m
1 stop
STL12:25 amLambert-St Louis
Apr 26
STL6:20 amLambert-St Louis
7h 55m
1 stop
SEA12:15 pmSeattle/Tacoma Intl
$306

Frontier flights from Seattle to Missouri

Our best Frontier deals on Seattle to Missouri flight tickets
Frontier
Apr 17
SEA7:12 pmSeattle/Tacoma Intl
16h 54m
1 stop
MCI2:06 pmKansas City
Apr 25
MCI2:51 pmKansas City
20h 36m
1 stop
SEA9:27 amSeattle/Tacoma Intl
$191
Frontier
Apr 22
SEA7:12 pmSeattle/Tacoma Intl
16h 18m
1 stop
MCI1:30 pmKansas City
Apr 25
MCI2:51 pmKansas City
20h 36m
1 stop
SEA9:27 amSeattle/Tacoma Intl
$216
Frontier
May 1
SEA7:12 pmSeattle/Tacoma Intl
16h 54m
1 stop
MCI2:06 pmKansas City
May 4
MCI2:15 pmKansas City
21h 34m
1 stop
SEA9:49 amSeattle/Tacoma Intl
$221

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 4, 2026.
Use the filters below to find and compare flights from Seattle to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Fri 4/17

7:12 pm-2:06 pm

1 stop16h 54m

Kansas City

Sat 4/25

2:51 pm-9:27 am

1 stop20h 36m

$191

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Wed 4/22

7:12 pm-1:30 pm

1 stop16h 18m

Kansas City

Sat 4/25

2:51 pm-9:27 am

1 stop20h 36m

$216

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Fri 5/1

7:12 pm-2:06 pm

1 stop16h 54m

Kansas City

Mon 5/4

2:15 pm-9:49 am

1 stop21h 34m

$221

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 4/16

12:55 pm-12:15 am

2 stops9h 20m

Lambert-St Louis

Thu 4/23

1:45 pm-12:05 am

1 stop12h 20m

$272

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 4/16

1:30 pm-12:25 am

1 stop8h 55m

Lambert-St Louis

Tue 4/21

2:20 pm-6:30 pm

1 stop6h 10m

$273
Quickest round-trip

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Tue 5/5

5:57 pm-11:59 pm

Nonstop4h 02m

Lambert-St Louis

Wed 5/6

4:46 pm-7:15 pm

Nonstop4h 29m

$277

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 4/17

12:55 pm-12:30 am

2 stops9h 35m

Lambert-St Louis

Tue 4/21

5:45 am-11:20 am

1 stop7h 35m

$278

SeattleColumbia

SEA - COU

SEACOU

Seattle/Tacoma Intl

Fri 5/1

10:25 am-7:13 pm

1 stop6h 48m

Columbia Regional

Fri 5/8

4:28 pm-12:36 am

1 stop10h 08m

$358

SeattleSpringfield

SEA - SGF

SEASGF

Seattle/Tacoma Intl

Sat 9/26

5:05 am-3:17 pm

1 stop8h 12m

Springfield-Branson

Sat 10/3

2:22 pm-7:24 pm

1 stop7h 02m

$369

SeattleSpringfield

SEA - SGF

SEASGF

Seattle/Tacoma Intl

Fri 4/17

11:15 pm-11:01 am

1 stop9h 46m

Springfield-Branson

Tue 4/21

3:59 pm-10:05 pm

1 stop8h 06m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Missouri from

How to get the cheapest flight ticket from Seattle to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Missouri?

In general, January is the cheapest month to fly from Seattle to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $237. If you aren’t able to travel to Missouri during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $287.

What is the cheapest day to depart on your flight to Missouri?

The cheapest day to depart from Seattle to Missouri is on a Tuesday when prices can be found for as low as $364. Flights from Seattle to Missouri on a Monday will generally be more expensive and average around $526. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Missouri?

According to our data, the cheapest time of day to fly to Missouri is at noon. momondo users have found flights departing from Seattle to Missouri at noon for as low as $277. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Missouri are more costly in the afternoon, with an average ticket price of $418. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Seattle/Tacoma Intl to Missouri flight route?

Fly from Seattle/Tacoma Intl to Kansas City for the best Seattle/Tacoma Intl - Missouri flight prices

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

You are more likely to see cheaper flights to Missouri from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $369 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Seattle for as low as $262 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Missouri flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Seattle to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Missouri

Best Price Found

$158

Fastest flight time

3h 26m

Direct flights

Every day

Airports in Missouri

55 airports
The best one-way flight to Missouri from Seattle in the past 72 hours is $158. The best round-trip flight deal from Seattle to Missouri found on momondo in the last 72 hours is $219.
The fastest flight from Seattle to Missouri takes 3h 26m
Direct flights go from Seattle to Missouri every day.
There are 55 airports in Missouri. From Seattle there are direct flights to Kansas City (MCI), Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Seattle to Missouri

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Missouri?

    Prices for flights from Seattle/Tacoma Intl Airport to Missouri are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Missouri?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Missouri?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Missouri.

  • What documentation or ID do you need to fly to Missouri?

    The necessary travel and health documents for your Missouri trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Missouri?

Best airlines flying from Seattle to Missouri

Compare and see reviews for airlines that fly from Seattle to Missouri with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $94Free CancellationRating
7.9
8,379 reviews
Search Delta flights
FrontierPriceFrom $133Free CancellationRating
5.7
3,001 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $148Free CancellationRating
7.8
2,838 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $157Free CancellationRating
7.4
9,542 reviews
Search United Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,344 reviews
Search Southwest flights
American AirlinesPriceFrom $188Free CancellationRating
7.1
11,555 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $199Free CancellationRating
7.9
12,161 reviews
Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Missouri?

It is quick and easy to find Seattle to Missouri flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Missouri that suits you.

Can I find flights from Seattle to Missouri with flexible booking policies on momondo?

All flight searches from Seattle to Missouri on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Missouri?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Missouri from Seattle.

I’m not ready to book a flight from Seattle to Missouri right now. Can momondo alert me if prices change?

Price alerts on flights to Missouri from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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