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Direct flights from Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL)

15 nonstop flights a week from Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL) with 2 airlines, 3h 50m to 9h 40m in the air, 1,705 mi (2,744 km). Departures from 06:30 to 18:08.

Flights from Seattle to St Louis

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Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL) at a glance

flights a week
15
flights today
1
airlines
2
flight time
3h 50m - 9h 40m
distance
1,705 mi (2,744 km)
first and last departure
06:30 - 18:08
arrival terminals
1, 2

Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL) flight schedule

15 flights a week. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
WN 3519
Southwest Airlines
06:30 Seattle-Tacoma International
14:45 Lambert-St. Louis International, terminal 2
6h 15m
Sat
Boeing 737
AS 314
Alaska Airlines
08:22 Seattle-Tacoma International
14:25 Lambert-St. Louis International, terminal 1
4h 3m
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737-900
AS 314
Alaska Airlines
08:30 Seattle-Tacoma International
14:22 Lambert-St. Louis International, terminal 1
3h 52m
Mon, Fri, Sat, Sun
Boeing 737
AS 314
Alaska Airlines
09:25 Seattle-Tacoma International
15:21 Lambert-St. Louis International, terminal 1
3h 56m
Sat
Boeing 737
WN 698
Southwest Airlines
11:45 Seattle-Tacoma International
20:05 Lambert-St. Louis International, terminal 2
6h 20m
Sat
Boeing 737-800
WN 1156
Southwest Airlines
13:35 Seattle-Tacoma International
01:15 Lambert-St. Louis International, terminal 2
9h 40m
Sat
Boeing 737
AS 647
Alaska Airlines
18:07 Seattle-Tacoma International
23:59 Lambert-St. Louis International, terminal 1
3h 52m
Mon, Thu, Fri, Sun
Boeing 737-900
AS 647
Alaska Airlines
18:08 Seattle-Tacoma International
23:59 Lambert-St. Louis International, terminal 1
3h 51m
Mon, Fri, Sat, Sun
Boeing 737-800

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 29 November.

FlightDepartsArrivesDurationDaysAircraft
WN 1530
Southwest Airlines
11:55 Seattle-Tacoma International
20:20 Lambert-St. Louis International, terminal 2
6h 25m
Seasonal
Boeing 737
AS 314
Alaska Airlines
10:50 Seattle-Tacoma International
16:40 Lambert-St. Louis International, terminal 1
3h 50m
Seasonal
Boeing 737
AS 314
Alaska Airlines
09:16 Seattle-Tacoma International
15:06 Lambert-St. Louis International, terminal 1
3h 50m
Seasonal
Boeing 737
AS 647
Alaska Airlines
18:06 Seattle-Tacoma International
23:59 Lambert-St. Louis International, terminal 1
3h 53m
Seasonal
Boeing 737
AS 1631
Alaska Airlines
09:41 Seattle-Tacoma International
15:34 Lambert-St. Louis International, terminal 1
3h 53m
Seasonal
Boeing 737-900
AS 647
Alaska Airlines
18:04 Seattle-Tacoma International
23:58 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
AS 314
Alaska Airlines
09:05 Seattle-Tacoma International
14:56 Lambert-St. Louis International, terminal 1
3h 51m
Seasonal
Boeing 737-900
WN 1320
Southwest Airlines
13:45 Seattle-Tacoma International
21:55 Lambert-St. Louis International, terminal 2
6h 10m
Seasonal
Boeing 737
AS 618
Alaska Airlines
08:15 Seattle-Tacoma International
14:06 Lambert-St. Louis International, terminal 1
3h 51m
Seasonal
Boeing 737-900
AS 647
Alaska Airlines
08:32 Seattle-Tacoma International
14:26 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
AS 618
Alaska Airlines
17:50 Seattle-Tacoma International
23:44 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
AS 388
Alaska Airlines
08:32 Seattle-Tacoma International
14:26 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
AS 349
Alaska Airlines
17:50 Seattle-Tacoma International
23:44 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
AS 388
Alaska Airlines
09:17 Seattle-Tacoma International
15:11 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
AS 328
Alaska Airlines
12:45 Seattle-Tacoma International
18:39 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
AS 349
Alaska Airlines
17:52 Seattle-Tacoma International
23:46 Lambert-St. Louis International, terminal 1
3h 54m
Seasonal
Boeing 737-900
WN 4381
Southwest Airlines
08:30 Seattle-Tacoma International
14:20 Lambert-St. Louis International, terminal 2
3h 50m
Seasonal
WN 5090
Southwest Airlines
07:30 Seattle-Tacoma International
13:20 Lambert-St. Louis International, terminal 2
3h 50m
Seasonal
Boeing 737
WN 5171
Southwest Airlines
13:25 Seattle-Tacoma International
19:15 Lambert-St. Louis International, terminal 2
3h 50m
Seasonal
Boeing 737
WN 4381
Southwest Airlines
09:25 Seattle-Tacoma International
15:15 Lambert-St. Louis International, terminal 2
3h 50m
Seasonal

Days of the week are taken from the schedule for the next 14 days; schedules change by season. St Louis is 2 hours ahead of Seattle.

Airlines flying Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL)

Nonstop flights a week by the current schedule

Alaska Airlines12 a week Southwest Airlines3 a week

Frequently asked questions

How many nonstop flights are there from Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL)?
15 nonstop flights a week by the current schedule, 15 flight numbers, 1 today.
How long is the flight from Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL)?
From 3 hours 50 minutes to 9 hours 40 minutes nonstop, depending on the flight.
Which airlines fly nonstop from Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL)?
Alaska Airlines (12 a week) and Southwest Airlines (3 a week).
Which terminals are used between Seattle-Tacoma International (SEA) and Lambert-St. Louis International (STL)?
Flights depart from Seattle-Tacoma International and arrive at Lambert-St. Louis International, terminals 1, 2.
How far is Lambert-St. Louis International (STL) from Seattle-Tacoma International (SEA)?
1,705 mi (2,744 km) in a straight line.
What are the earliest and latest flights from Seattle-Tacoma International (SEA) to Lambert-St. Louis International (STL)?
The first departure is at 06:30 (Southwest Airlines), the last at 18:08 (Alaska Airlines), local time.