Find Cheap Flights from Lambert-St Louis to Seattle/Tacoma Intl (STL - SEA)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Lambert-St Louis to Seattle/Tacoma Intl

(Round-trip)
Depart: Wed Sep 13 2017 Return: Tue Sep 19 2017 Trip spans 7 days
Frontier
Frontier
STL
12:05p
SEA
7:37p
7h 32m
1 stop
SEA
6:55a
STL
5:07p
10h 12m
1 stop
Depart: Mon Sep 11 2017 Return: Mon Sep 18 2017 Trip spans 8 days
Major Airline
Major Airline
STL
10:25p
SEA
6:34a
8h 09m
1 stop
SEA
10:10p
STL
3:40a
5h 30m
1 stop
Depart: Mon May 8 2017 Return: Sun May 14 2017 Trip spans 7 days
Delta
Delta
STL
1:45a
SEA
8:55a
7h 10m
1 stop
SEA
8:40p
STL
2:14a
5h 34m
1 stop
Depart: Tue May 9 2017 Return: Mon May 15 2017 Trip spans 7 days
American Airlines
American Airlines
STL
3:20a
SEA
11:49a
8h 29m
1 stop
SEA
8:15p
STL
4:45a
8h 30m
1 stop
Depart: Tue May 23 2017 Return: Sun May 28 2017 Trip spans 6 days
United
United
STL
2:55a
SEA
12:46p
9h 51m
1 stop
SEA
1:20a
STL
9:42a
8h 22m
1 stop
Depart: Wed Aug 16 2017 Return: Fri Aug 18 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
STL
3:17p
SEA
7:38p
4h 21m
nonstop
SEA
1:35p
STL
5:35p
4h 00m
nonstop
Depart: Sat Sep 30 2017 Return: Tue Oct 3 2017 Trip spans 4 days
Frontier
Frontier
STL
12:05p
SEA
7:37p
7h 32m
1 stop
SEA
6:55a
STL
5:07p
10h 12m
1 stop
Depart: Sat Aug 19 2017 Return: Tue Aug 29 2017 Trip spans 11 days
Frontier
Frontier
STL
10:30a
SEA
7:31p
9h 01m
1 stop
SEA
6:55a
STL
5:10p
10h 15m
1 stop
Depart: Mon Oct 9 2017 Return: Sat Oct 14 2017 Trip spans 6 days
Major Airline
Major Airline
STL
6:35a
SEA
2:52p
8h 17m
1 stop
SEA
3:10p
STL
3:40a
12h 30m
1 stop
Depart: Wed Aug 30 2017 Return: Wed Sep 6 2017 Trip spans 8 days
Frontier
Frontier
STL
10:30a
SEA
7:31p
9h 01m
1 stop
SEA
6:55a
STL
12:49p
5h 54m
1 stop
Depart: Tue Aug 15 2017 Return: Tue Aug 22 2017 Trip spans 8 days
Frontier
Frontier
STL
3:35p
SEA
8:07a
16h 32m
1 stop
SEA
6:55a
STL
12:49p
5h 54m
1 stop
Depart: Fri May 5 2017 Return: Wed May 10 2017 Trip spans 6 days
Major Airline
Major Airline
STL
11:50p
SEA
8:42a
8h 52m
1 stop
SEA
1:58a
STL
1:07p
11h 09m
1 stop
Depart: Tue Sep 12 2017 Return: Tue Sep 19 2017 Trip spans 8 days
Frontier
Frontier
STL
3:45p
SEA
8:02a
16h 17m
1 stop
SEA
6:55a
STL
12:59p
6h 04m
1 stop
Depart: Wed May 17 2017 Return: Mon May 22 2017 Trip spans 6 days
Delta
Delta
STL
1:45a
SEA
7:33a
5h 48m
1 stop
SEA
2:40a
STL
8:41a
6h 01m
1 stop
Depart: Tue Jul 4 2017 Return: Wed Aug 30 2017 Trip spans 58 days
American Airlines
American Airlines
STL
3:15p
SEA
10:35p
7h 20m
1 stop
SEA
8:25a
STL
12:08p
3h 43m
nonstop
Depart: Thu May 11 2017 Return: Sun May 14 2017 Trip spans 4 days
Major Airline
Major Airline
STL
5:40a
SEA
11:47a
6h 07m
1 stop
SEA
3:00a
STL
1:07p
10h 07m
1 stop
Depart: Wed Jun 14 2017 Return: Tue Jun 20 2017 Trip spans 7 days
United
United
STL
2:55a
SEA
10:04a
7h 09m
1 stop
SEA
11:59a
STL
7:26p
7h 27m
1 stop
Depart: Fri May 19 2017 Return: Tue May 23 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
STL
3:20p
SEA
7:31p
4h 11m
nonstop
SEA
9:50a
STL
5:58p
8h 08m
1 stop
Depart: Tue May 16 2017 Return: Tue May 23 2017 Trip spans 8 days
American Airlines
American Airlines
STL
3:15p
SEA
10:39p
7h 24m
1 stop
SEA
8:15p
STL
4:45a
8h 30m
1 stop
Depart: Tue Aug 22 2017 Return: Tue Aug 29 2017 Trip spans 8 days
Frontier
Frontier
STL
3:35p
SEA
8:07a
16h 32m
1 stop
SEA
6:55a
STL
5:10p
10h 15m
1 stop
Direct flights STL to SEA on American Airlines
Flight # Depart STL Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
6996 6:25 am 8:36 am May 8 - May 15
6996 6:25 am 8:36 am May 16 - May 16
6996 6:25 am 8:36 am May 9 - May 13
6996 6:25 am 8:44 am Apr 29 - May 6
6996 6:35 am 8:46 am May 29 - May 29
7124 7:20 pm 9:31 pm May 17 - May 24
7124 7:20 pm 9:39 pm May 5 - May 7
7124 7:20 pm 9:31 pm May 8 - May 15
7124 7:20 pm 9:39 pm May 1 - May 6
7124 7:20 pm 9:31 pm May 9 - May 16
7124 7:20 pm 9:31 pm Jun 2 - Jun 3
7124 7:20 pm 9:31 pm May 26 - Jun 1
7124 7:20 pm 9:31 pm May 25 - May 27
7124 7:20 pm 9:31 pm May 18 - May 22
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

St. Louis
$208
Destination

Seattle
$208
Airlines Airline reviews

35 travelers who booked a flight from St. Louis to Seattle rated their chosen airlines with an average of 9.1.

Overall
9.4
Boarding
9.1
Crew
9.4
Comfort
8.9
Food
8.4
Entertainment
8.6