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: Mon Aug 14 2017 Return: Tue Aug 22 2017 Trip spans 9 days
Delta
Delta
STL
3:42p
SEA
9:48p
6h 06m
1 stop
SEA
9:25a
STL
5:55p
8h 30m
1 stop
Depart: Sat Sep 9 2017 Return: Wed Sep 13 2017 Trip spans 5 days
Major Airline
Major Airline
STL
3:01a
SEA
12:07p
9h 06m
1 stop
SEA
11:29p
STL
4:51a
5h 22m
1 stop
Depart: Tue Jun 6 2017 Return: Wed Jun 7 2017 Trip spans 2 days
Frontier
Frontier
STL
9:50a
SEA
3:47p
5h 57m
1 stop
SEA
5:58a
STL
5:00p
11h 02m
1 stop
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
American Airlines
American Airlines
STL
7:01a
SEA
2:41p
7h 40m
1 stop
SEA
8:15p
STL
2:43a
6h 28m
1 stop
Depart: Sun Sep 17 2017 Return: Tue Sep 26 2017 Trip spans 10 days
Alaska Airlines
Alaska Airlines
STL
1:04p
SEA
5:49p
4h 45m
nonstop
SEA
6:20a
STL
10:03a
3h 43m
nonstop
Depart: Fri Jun 16 2017 Return: Wed Jun 21 2017 Trip spans 6 days
United
United
STL
4:05a
SEA
1:04p
8h 59m
1 stop
SEA
10:06a
STL
7:26p
9h 20m
1 stop
Depart: Mon Aug 21 2017 Return: Tue Aug 29 2017 Trip spans 9 days
Delta
Delta
STL
3:39p
SEA
9:57p
6h 18m
1 stop
SEA
6:25a
STL
11:59a
5h 34m
1 stop
Depart: Sat Oct 7 2017 Return: Sat Oct 21 2017 Trip spans 15 days
Major Airline
Major Airline
STL
11:45a
SEA
4:02a
16h 17m
1 stop
SEA
2:55a
STL
8:59a
6h 04m
1 stop
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
Frontier
Frontier
STL
10:30a
SEA
7:31p
9h 01m
1 stop
SEA
6:55a
STL
12:59p
6h 04m
1 stop
Depart: Sun Sep 10 2017 Return: Tue Sep 12 2017 Trip spans 3 days
American Airlines
American Airlines
STL
2:00p
SEA
9:34p
7h 34m
1 stop
SEA
1:10a
STL
8:20a
7h 10m
1 stop
Depart: Tue Aug 22 2017 Return: Tue Aug 29 2017 Trip spans 8 days
Delta
Delta
STL
3:39p
SEA
9:57p
6h 18m
1 stop
SEA
6:25a
STL
11:59a
5h 34m
1 stop
Depart: Tue Aug 15 2017 Return: Tue Aug 22 2017 Trip spans 8 days
Major Airline
Major Airline
STL
9:48a
SEA
3:45p
5h 57m
1 stop
SEA
12:00a
STL
7:07a
7h 07m
1 stop
Depart: Tue Sep 19 2017 Return: Sat Sep 30 2017 Trip spans 12 days
Frontier
Frontier
STL
3:45p
SEA
8:02a
16h 17m
1 stop
SEA
6:55a
STL
12:59p
6h 04m
1 stop
Depart: Thu Sep 21 2017 Return: Tue Sep 26 2017 Trip spans 6 days
American Airlines
American Airlines
STL
3:17a
SEA
12:00p
8h 43m
1 stop
SEA
10:45a
STL
5:12p
6h 27m
1 stop
Depart: Mon Sep 11 2017 Return: Mon Sep 18 2017 Trip spans 8 days
Delta
Delta
STL
2:45p
SEA
9:22p
6h 37m
1 stop
SEA
8:55p
STL
2:30a
5h 35m
1 stop
Depart: Sun Jun 18 2017 Return: Tue Jun 20 2017 Trip spans 3 days
United
United
STL
6:05a
SEA
1:04p
6h 59m
1 stop
SEA
10:06a
STL
7:26p
9h 20m
1 stop
Depart: Sat Jun 10 2017 Return: Tue Jun 13 2017 Trip spans 4 days
Major Airline
Major Airline
STL
11:35a
SEA
4:15a
16h 40m
1 stop
SEA
3:00a
STL
1:00p
10h 00m
1 stop
Depart: Sat Sep 23 2017 Return: Tue Sep 26 2017 Trip spans 4 days
Frontier
Frontier
STL
12:05p
SEA
7:37p
7h 32m
1 stop
SEA
6:55a
STL
12:59p
6h 04m
1 stop
Depart: Fri Oct 6 2017 Return: Thu Oct 19 2017 Trip spans 14 days
American Airlines
American Airlines
STL
3:09p
SEA
10:15p
7h 06m
1 stop
SEA
11:00a
STL
5:51p
6h 51m
1 stop
Depart: Sun Oct 8 2017 Return: Sun Oct 22 2017 Trip spans 15 days
Alaska Airlines
Alaska Airlines
STL
1:10p
SEA
5:55p
4h 45m
nonstop
SEA
6:20a
STL
10:09a
3h 49m
nonstop
Direct flights STL to SEA on American Airlines
Flight # Depart STL Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
6996 6:30 am 8:49 am Jun 14 - Jun 14
7124 7:17 pm 9:39 pm Jun 26 - Jun 30
7124 7:17 pm 9:39 pm Jun 21 - Jun 28
7124 7:17 pm 9:39 pm Jun 17 - Jun 23
7124 7:17 pm 9:39 pm Jun 12 - Jun 20
7124 7:17 pm 9:39 pm Jun 9 - Jun 16
7124 7:17 pm 9:39 pm Jun 4 - Jun 10
7124 7:17 pm 9:39 pm Jun 29 - Jul 4
7124 7:20 pm 9:31 pm Jun 2 - Jun 3
7124 7:20 pm 9:31 pm May 28 - Jun 1
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

St. Louis
$284
Destination

Seattle
$284
Airlines Airline reviews

38 travelers who booked a flight from St. Louis to Seattle rated their chosen airlines with an average of 8.9.

Overall
9.2
Boarding
9.0
Crew
9.3
Comfort
8.7
Food
8.3
Entertainment
8.6