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Cheap flights from Seattle to Missouri from $60

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 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
American Airlines Logo
12:59 am - 11:01 am
SEA
-
STL
8h 02m
1 stop
American Airlines Logo
6:37 pm - 12:24 am
STL
-
SEA
7h 47m
1 stop
$159American Airlines
Mon, Mar 2 - Tue, Mar 10
American Airlines Logo
11:55 pm - 8:54 am
SEA
-
STL
6h 59m
1 stop
American Airlines Logo
5:21 pm - 10:38 pm
STL
-
SEA
7h 17m
1 stop
$167American Airlines
Mon, Apr 20 - Sat, Apr 25
Delta Logo
11:14 pm - 9:48 am
SEA
-
STL
8h 34m
1 stop
Delta Logo
6:45 pm - 11:59 pm
STL
-
SEA
7h 14m
1 stop
$177Delta
Fri, Apr 17 - Thu, Apr 23
Alaska Airlines Logo
7:55 am - 1:51 pm
SEA
-
STL
3h 56mnonstop
Alaska Airlines Logo
7:00 am - 9:42 am
STL
-
SEA
4h 42mnonstop
$197Alaska Airlines
Tue, Mar 3 - Tue, Mar 10
Frontier Logo
9:35 pm - 9:00 pm
SEA
-
STL
21h 25m
1 stop
Frontier Logo
8:12 pm - 9:27 am
STL
-
SEA
15h 15m
1 stop
$201Frontier
Thu, Apr 16 - Sat, Apr 18
Frontier Logo
12:24 pm - 9:49 am
SEA
-
STL
19h 25m
1 stop
Frontier Logo
6:19 pm - 5:09 pm
STL
-
SEA
24h 50m
2 stops
$203Frontier
Fri, Mar 6 - Sun, Mar 8
Delta Logo
5:50 pm - 11:16 pm
SEA
-
MCI
3h 26mnonstop
Delta Logo
7:55 am - 10:00 am
MCI
-
SEA
4h 05mnonstop
$207Delta
Tue, Apr 7 - Sat, Apr 11
United Airlines Logo
5:00 am - 12:52 pm
SEA
-
MCI
5h 52m
1 stop
United Airlines Logo
5:00 pm - 10:37 pm
MCI
-
SEA
7h 37m
1 stop
$212United Airlines
Tue, Apr 7 - Tue, Apr 7
United Airlines Logo
5:00 am - 12:48 pm
SEA
-
MCI
5h 48m
1 stop
United Airlines Logo
6:00 am - 9:49 am
MCI
-
SEA
5h 49m
1 stop
$217United Airlines
Wed, Mar 4 - Wed, Mar 11
Alaska Airlines Logo
6:21 pm - 11:59 pm
SEA
-
MCI
3h 38mnonstop
Alaska Airlines Logo
2:58 pm - 5:00 pm
MCI
-
SEA
4h 02mnonstop
$227Alaska Airlines
Fri, Apr 24 - Mon, Apr 27

Delta flights from Seattle to Missouri

Our best Delta deals on Seattle to Missouri flight tickets
Delta
Apr 17
SEA11:14 pmSeattle/Tacoma Intl
8h 34m
1 stop
STL9:48 amLambert-St Louis
Apr 23
STL6:45 pmLambert-St Louis
7h 14m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$177
Delta
Feb 28
SEA6:21 pmSeattle/Tacoma Intl
3h 29m
MCI11:50 pmKansas City
Mar 7
MCI7:00 amKansas City
4h 06m
SEA9:06 amSeattle/Tacoma Intl
$208
Delta
Mar 2
SEA4:40 pmSeattle/Tacoma Intl
5h 45m
1 stop
STL12:25 amLambert-St Louis
Mar 5
STL2:22 pmLambert-St Louis
6h 07m
1 stop
SEA6:29 pmSeattle/Tacoma Intl
$218

Southwest flights from Seattle to Missouri

Our best Southwest deals on Seattle to Missouri flight tickets
Southwest
Apr 13
SEA11:55 pmSeattle/Tacoma Intl
7h 35m
1 stop
STL9:30 amLambert-St Louis
Apr 17
STL7:20 pmLambert-St Louis
7h 20m
1 stop
SEA12:40 amSeattle/Tacoma Intl
$236
Southwest
Feb 25
SEA9:55 amSeattle/Tacoma Intl
8h 40m
2 stops
STL8:35 pmLambert-St Louis
Feb 28
STL6:10 amLambert-St Louis
9h 40m
1 stop
SEA1:50 pmSeattle/Tacoma Intl
$241
Southwest
Feb 23
SEA6:35 amSeattle/Tacoma Intl
7h 20m
1 stop
STL3:55 pmLambert-St Louis
Mar 3
STL2:20 pmLambert-St Louis
10h 10m
2 stops
SEA10:30 pmSeattle/Tacoma Intl
$253

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 February 5, 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

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Mon 3/2

12:59 am-11:01 am

1 stop8h 02m

Lambert-St Louis

Tue 3/10

6:37 pm-12:24 am

1 stop7h 47m

$159

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Mon 4/20

11:55 pm-8:54 am

1 stop6h 59m

Lambert-St Louis

Sat 4/25

5:21 pm-10:38 pm

1 stop7h 17m

$167

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 4/17

11:14 pm-9:48 am

1 stop8h 34m

Lambert-St Louis

Thu 4/23

6:45 pm-11:59 pm

1 stop7h 14m

$177

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Tue 3/3

7:55 am-1:51 pm

Nonstop3h 56m

Lambert-St Louis

Tue 3/10

7:00 am-9:42 am

Nonstop4h 42m

$197

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 4/16

9:35 pm-9:00 pm

1 stop21h 25m

Lambert-St Louis

Sat 4/18

8:12 pm-9:27 am

1 stop15h 15m

$201

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 3/6

12:24 pm-9:49 am

1 stop19h 25m

Lambert-St Louis

Sun 3/8

6:19 pm-5:09 pm

2 stops24h 50m

$203

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 4/7

5:50 pm-11:16 pm

Nonstop3h 26m

Kansas City

Sat 4/11

7:55 am-10:00 am

Nonstop4h 05m

$207

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 4/7

5:00 am-12:52 pm

1 stop5h 52m

Kansas City

Tue 4/7

5:00 pm-10:37 pm

1 stop7h 37m

$212

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Wed 3/4

5:00 am-12:48 pm

1 stop5h 48m

Kansas City

Wed 3/11

6:00 am-9:49 am

1 stop5h 49m

$217

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Fri 4/24

6:21 pm-11:59 pm

Nonstop3h 38m

Kansas City

Mon 4/27

2:58 pm-5:00 pm

Nonstop4h 02m

$227

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 $268. If you aren’t able to travel to Missouri during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $327.

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

The cheapest day to depart from Seattle to Missouri is on a Thursday when prices can be found for as low as $379. Flights from Seattle to Missouri on a Sunday will generally be more expensive and average around $485. 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 $269. 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 morning, with an average ticket price of $417. Departure times in the morning 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 Lambert-St Louis 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 $375 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.

Can stopping save me money on Seattle to Missouri flights?

You could potentially save up to 36% on your flight if you consider stops on a Seattle to Missouri flight.

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

$174

Fastest flight time

3h 25m

Direct flights

Every day

Airports in Missouri

55 airports
The best one-way flight to Missouri from Seattle in the past 72 hours is $174. The best round-trip flight deal from Seattle to Missouri found on momondo in the last 72 hours is $199.
The fastest flight from Seattle to Missouri takes 3h 25m
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

  • 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
8,153 reviews
Search Delta flights
FrontierPriceFrom $121Free CancellationRating
5.7
3,053 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $148Free CancellationRating
7.8
2,831 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $157Free CancellationRating
7.4
9,241 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $168Free CancellationRating
6.3
8,419 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $182Free CancellationRating
8.0
4,275 reviews
Search Southwest flights
American AirlinesPriceFrom $188Free CancellationRating
7.2
11,238 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $212Free CancellationRating
8.0
11,842 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.

An easier way to manage your Missouri trip

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