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Cheap flights from Seattle to St Louis

15 nonstop flights a week, 1 of them today. Operated by 2 airlines, about 3h 54m in the air, 1,720 mi (2,768 km).

Flights from Seattle to St Louis

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Seattle to St Louis at a glance

flight time, from 3h 50m to 9h 40m
3h 54m
straight-line distance
1,720 mi (2,768 km)
flights a week
15
flight today
1
first and last departure
06:30 - 18:08
airlines
2

Seattle to St Louis flight schedule

15 flights a week, 1 today, 21 seasonal or one-off. 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
WN 4381
Southwest Airlines
10:15 Seattle-Tacoma International
16:05 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. The search shows seat availability and the price for your date.

Airlines flying Seattle to St Louis

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Alaska Airlines12 a week Southwest Airlines3 a week

Airports

Where flights from Seattle to St Louis depart and land

Departure from Seattle

Seattle-Tacoma International SEA

15 flights a week, 11 mi (18 km) from the city centre

About the airport

Arrival in St Louis

Lambert-St. Louis International STL

15 flights a week, terminals 1, 2, 12 mi (19 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from Seattle to St Louis?
A nonstop flight takes 3 hours 54 minutes on average, from 3h 50m to 9h 40m depending on the flight.
How far is St Louis from Seattle?
1,720 mi (2,768 km) in a straight line between the cities.
Which airlines fly nonstop from Seattle to St Louis?
Alaska Airlines (12 a week) and Southwest Airlines (3 a week).
How many flights a day are there from Seattle to St Louis?
1 flight today and 15 a week, about 2.1 a day on average.
When are the first and last flights from Seattle to St Louis?
The first departure is at 06:30 (WN3519), the last at 18:08 (AS647). Local time.
What is the time difference between Seattle and St Louis?
St Louis is 2 hours ahead of Seattle. Schedule times on this page are local to each airport.
Which Seattle airport do flights to St Louis leave from?
Seattle-Tacoma International (15 a week).