Direct (non-stop) flights from Seattle to Saint Louis

SEA Seattle Tacoma International

Seattle , WA , USA

STL Saint Louis Airport

Saint Louis , MO , USA

CHANGE DIRECTION

Flight time

4h 08m

Flight distance

1714mi, 2758km

Flights from Seattle to Saint Louis route map

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USA

SEA

Seattle , WA

USA

STL

Saint Louis , MO

Distance

1714 miles · (2758 km)

CHANGE DIRECTION

Flight time

4 hours and 08 minutes

Airlines with direct flights from Seattle (SEA) to Saint Louis (STL)

Alaska Airlines

Oneworld

S

M

T

W

T

F

S

Business available

3 daily flights
Southwest Airlines

S

M

T

W

T

F

S

Low-cost airline

1 daily flight

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SEA STL

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MONTHLY

WEEKLY

Seattle (SEA) to Saint Louis (STL) flight schedule

The monthly calendar shows every direct flight departure from Seattle Tacoma International (SEA) with all airlines. Click on a date to see a list of flights or search for the best prices.

Alaska Airlines

Southwest

View return flights from STL to SEA

Alaska Airlines flight schedule from Seattle to Saint Louis

All weekly departures with Alaska Airlines. The week calendar shows every flight departure from Seattle (SEA) to Saint Louis (STL). Click on a blue date to see a list of flights.

Week 28 (Jul 6 - Jul 12)

Week 26 (Jun 22 - Jun 28)
Week 27 (Jun 29 - Jul 5)
Week 28 (Jul 6 - Jul 12)
Week 29 (Jul 13 - Jul 19)
Week 30 (Jul 20 - Jul 26)
Week 31 (Jul 27 - Aug 2)
Week 32 (Aug 3 - Aug 9)
Week 33 (Aug 10 - Aug 16)
Week 34 (Aug 17 - Aug 23)
Week 35 (Aug 24 - Aug 30)
Week 36 (Aug 31 - Sep 6)
Week 37 (Sep 7 - Sep 13)
Week 38 (Sep 14 - Sep 20)
Week 39 (Sep 21 - Sep 27)
Week 40 (Sep 28 - Oct 4)
Week 41 (Oct 5 - Oct 11)
Week 42 (Oct 12 - Oct 18)
Week 43 (Oct 19 - Oct 25)
Week 44 (Oct 26 - Nov 1)
Week 45 (Nov 2 - Nov 8)
Week 46 (Nov 9 - Nov 15)
Week 47 (Nov 16 - Nov 22)
Week 48 (Nov 23 - Nov 29)
Week 49 (Nov 30 - Dec 6)
Week 50 (Dec 7 - Dec 13)
Week 51 (Dec 14 - Dec 20)
Week 52 (Dec 21 - Dec 27)
Week 53 (Dec 28 - Jan 3)
Week 1 (Jan 4 - Jan 10)
Week 2 (Jan 11 - Jan 17)
Week 3 (Jan 18 - Jan 24)
Week 4 (Jan 25 - Jan 31)
Week 5 (Feb 1 - Feb 7)
Week 6 (Feb 8 - Feb 14)
Week 7 (Feb 15 - Feb 21)
Week 8 (Feb 22 - Feb 28)
Week 9 (Mar 1 - Mar 7)
Week 10 (Mar 8 - Mar 14)
Week 11 (Mar 15 - Mar 21)
Week 12 (Mar 22 - Mar 28)
Week 13 (Mar 29 - Apr 4)
Week 14 (Apr 5 - Apr 11)
Week 15 (Apr 12 - Apr 18)
Week 16 (Apr 19 - Apr 25)
Week 17 (Apr 26 - May 2)
Week 18 (May 3 - May 9)
Week 19 (May 10 - May 16)
Week 20 (May 17 - May 23)
Week 21 (May 24 - May 30)
Week 22 (May 31 - Jun 6)
Week 23 (Jun 7 - Jun 13)

Flight

Mon

Jul 6

Tue

Jul 7

Wed

Jul 8

Thu

Jul 9

Fri

Jul 10

Sat

Jul 11

Sun

Jul 12

AS618

07:55

AS647

13:06

AS615

18:04

Southwest Airlines flight schedule from Seattle to Saint Louis

All weekly departures with Southwest Airlines. The week calendar shows every flight departure from Seattle (SEA) to Saint Louis (STL). Click on a blue date to see a list of flights.

Week 28 (Jul 6 - Jul 12)

Week 26 (Jun 22 - Jun 28)
Week 27 (Jun 29 - Jul 5)
Week 28 (Jul 6 - Jul 12)
Week 29 (Jul 13 - Jul 19)
Week 30 (Jul 20 - Jul 26)
Week 31 (Jul 27 - Aug 2)
Week 32 (Aug 3 - Aug 9)
Week 33 (Aug 10 - Aug 16)
Week 34 (Aug 17 - Aug 23)
Week 35 (Aug 24 - Aug 30)
Week 36 (Aug 31 - Sep 6)
Week 37 (Sep 7 - Sep 13)
Week 38 (Sep 14 - Sep 20)
Week 39 (Sep 21 - Sep 27)
Week 40 (Sep 28 - Oct 4)
Week 41 (Oct 5 - Oct 11)
Week 42 (Oct 12 - Oct 18)
Week 43 (Oct 19 - Oct 25)
Week 44 (Oct 26 - Nov 1)
Week 45 (Nov 2 - Nov 8)
Week 46 (Nov 9 - Nov 15)
Week 47 (Nov 16 - Nov 22)
Week 48 (Nov 23 - Nov 29)
Week 49 (Nov 30 - Dec 6)
Week 50 (Dec 7 - Dec 13)
Week 51 (Dec 14 - Dec 20)
Week 52 (Dec 21 - Dec 27)
Week 53 (Dec 28 - Jan 3)
Week 1 (Jan 4 - Jan 10)
Week 2 (Jan 11 - Jan 17)
Week 3 (Jan 18 - Jan 24)
Week 4 (Jan 25 - Jan 31)
Week 5 (Feb 1 - Feb 7)
Week 6 (Feb 8 - Feb 14)
Week 7 (Feb 15 - Feb 21)
Week 8 (Feb 22 - Feb 28)
Week 9 (Mar 1 - Mar 7)
Week 10 (Mar 8 - Mar 14)
Week 11 (Mar 15 - Mar 21)
Week 12 (Mar 22 - Mar 28)
Week 13 (Mar 29 - Apr 4)
Week 14 (Apr 5 - Apr 11)
Week 15 (Apr 12 - Apr 18)
Week 16 (Apr 19 - Apr 25)
Week 17 (Apr 26 - May 2)
Week 18 (May 3 - May 9)
Week 19 (May 10 - May 16)
Week 20 (May 17 - May 23)
Week 21 (May 24 - May 30)
Week 22 (May 31 - Jun 6)
Week 23 (Jun 7 - Jun 13)

Flight

Mon

Jul 6

Tue

Jul 7

Wed

Jul 8

Thu

Jul 9

Fri

Jul 10

Sat

Jul 11

Sun

Jul 12

WN3632

09:00

09:30

09:00

----

WN140

----

11:00

WN4619

----

12:00

----

Flight time

3h 50m - 4h 08m

Earliest flight

07:55

Last flight

12:00

Distance

1714 miles (2758 km)

Cheapest month

January

Airlines

2 (Show)

Flights per week

Arriving Terminal (STL)

Terminal 1 & 2

America/Los Angeles (UTC-7)

America/Chicago (UTC-5)

STL +2 hours ahead

Arriving at Saint Louis Airport (STL) , Missouri

Saint Louis Airport (STL) is a large airport in USA. You can fly to 65 destinations with 10 airlines in scheduled passenger traffic.

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Departing from Seattle Tacoma (SEA) , Washington

Seattle Tacoma International (SEA) is a large airport in USA. You can fly to 139 destinations with 35 airlines in scheduled passenger traffic.

Show all flights from SEA

Seattle - Saint Louis flight price statistics

$400

Approximate

The numbers are avarage prices found based on user searches for direct flights between Seattle Tacoma International and Saint Louis Airport. Its calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.

$216
Jan

$415
Feb

$270
Mar

$304
Apr

$428
May

$808
Jun

$646
Jul

$618
Aug

$356
Sep

$346
Oct

$278
Nov

$678
Dec

Approximate prices for one round-trip flight from Seattle (SEA) to Saint Louis (STL). Graph is not to scale.

CLICK HERE FOR EXACT PRICES

Type of aircraft(s) on this route

Below is a list of aircraft types we have within our database with flights on this route. You can also see the aircrafts seat capacity together with classes.

Boeing 737-900 (winglets) Passenger/BBJ3

Alaska Airlines

165 seats

(15 first class)

Boeing 737MAX 9 Passenger

Alaska Airlines

178 seats

(16 first class)

Boeing 737MAX 8 Passenger

Southwest Airlines

175 seats

(All economy)

Boeing 737-800 (winglets) Passenger/BBJ2

Southwest Airlines

166 seats

(All economy)

Boeing 737-700 Passenger (Scimitar Winglets)

Southwest Airlines

137 seats

(All economy)

ROUTE EXPLORING

Seattle Tacoma International - all destinations

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Frequently asked questions FAQ

How long does a flight from Seattle (SEA) to Saint Louis (STL) take?

The flight between Seattle (SEA) and Saint Louis (STL) typically takes about 3 hour and 55 minute.
How many flights per day are there on this route?

There are 3 direct flights every day.
What are the flight numbers on the route Seattle to Saint Louis?

The flight numbers are AS314, AS328, AS349, AS388, AS472, AS615, AS618, AS647 together with 11 additional flights.
Which airports will I be using when flying from Seattle to Saint Louis?

From Seattle you will fly out from Seattle Tacoma International (SEA) and you will be landing at Saint Louis Airport (STL).
What aircraft types are flying on this route?

Alaska Airlines and Southwest fly this route with the same aircraft: Boeing 737.
How many airlines fly non-stop from Seattle (SEA) to Saint Louis (STL)?

Two airlines. Alaska Airlines and Southwest have non-stop flights to Saint Louis.
What terminal is the aircraft arriving at in Saint Louis?

They arrive at terminal 1 or 2.

VIEW IN
MAP EXPLORER Flights from Seattle to Saint Louis route map

Non-stop flights from SEA to STL

1714 miles (2758 km) · 4 hours and 08 minutes

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Popular routes from Seattle

Alaska Airlines routes

Seattle (SEA) - Anchorage (ANC)

Seattle (SEA) - Portland (PDX)

Seattle (SEA) - Spokane (GEG)

Seattle (SEA) - Los Angeles (LAX)

Seattle (SEA) - Phoenix (PHX)

For more destinations from Seattle with Alaska Airlines (AS), check out the Alaska Airlines route map .

Southwest Airlines routes

Seattle (SEA) - Denver (DEN)

Seattle (SEA) - Sacramento (SMF)

Seattle (SEA) - Oakland (OAK)

Seattle (SEA) - Phoenix (PHX)

Seattle (SEA) - Las Vegas (LAS)

For more destinations from Seattle with Southwest Airlines (WN), check out the Southwest Airlines route map .

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Airlines with direct flights from Seattle (SEA) to Saint Louis (STL)

Seattle (SEA) to Saint Louis (STL) flight schedule

Alaska Airlines flight schedule from Seattle to Saint Louis

Southwest Airlines flight schedule from Seattle to Saint Louis

Arriving at Saint Louis Airport (STL) , Missouri

Departing from Seattle Tacoma (SEA) , Washington