Find Deals on Flights from Lambert-St Louis to Seattle

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

(Round-trip)
Depart: Wed Apr 26 2017 Return: Tue May 2 2017 Trip spans 7 days
Frontier
Frontier
STL
9:50a
SEA
7:35p
9h 45m
1 stop
SEA
6:55a
STL
5:07p
10h 12m
1 stop
Depart: Tue Apr 4 2017 Return: Sat May 6 2017 Trip spans 33 days
Major Airline
Major Airline
STL
7:50a
SEA
1:58a
18h 08m
1 stop
SEA
1:51a
STL
11:08a
9h 17m
1 stop
Depart: Wed Mar 15 2017 Return: Mon Mar 27 2017 Trip spans 13 days
Alaska Airlines
Alaska Airlines
STL
3:20p
SEA
7:43p
4h 23m
nonstop
SEA
1:55p
STL
5:39p
3h 44m
nonstop
Depart: Sun Mar 19 2017 Return: Tue Mar 21 2017 Trip spans 3 days
United
United
STL
1:40p
SEA
11:13p
9h 33m
1 stop
SEA
1:50a
STL
11:40a
9h 50m
1 stop
Depart: Thu Apr 20 2017 Return: Mon Apr 24 2017 Trip spans 5 days
Delta
Delta
STL
1:40a
SEA
8:55a
7h 15m
1 stop
SEA
6:35p
STL
5:00a
10h 25m
1 stop
Depart: Tue May 16 2017 Return: Sat May 20 2017 Trip spans 5 days
American Airlines
American Airlines
STL
3:15p
SEA
10:39p
7h 24m
1 stop
SEA
11:00a
STL
5:55p
6h 55m
1 stop
Depart: Wed May 3 2017 Return: Tue May 9 2017 Trip spans 7 days
Frontier
Frontier
STL
9:50a
SEA
7:35p
9h 45m
1 stop
SEA
7:00a
STL
5:07p
10h 07m
1 stop
Depart: Tue May 2 2017 Return: Tue May 9 2017 Trip spans 8 days
Major Airline
Major Airline
STL
9:00p
SEA
6:23a
9h 23m
1 stop
SEA
5:50a
STL
1:58p
8h 08m
1 stop
Depart: Mon Mar 27 2017 Return: Thu Apr 6 2017 Trip spans 11 days
Alaska Airlines
Alaska Airlines
STL
3:20p
SEA
7:43p
4h 23m
nonstop
SEA
1:55p
STL
5:39p
3h 44m
nonstop
Depart: Tue Mar 21 2017 Return: Wed Mar 22 2017 Trip spans 2 days
United
United
STL
12:35p
SEA
8:02p
7h 27m
1 stop
SEA
7:05p
STL
2:05a
7h 00m
1 stop
Depart: Tue Mar 28 2017 Return: Thu Apr 6 2017 Trip spans 10 days
Alaska Airlines
Alaska Airlines
STL
3:20p
SEA
7:43p
4h 23m
nonstop
SEA
1:55p
STL
5:39p
3h 44m
nonstop
Depart: Thu Apr 6 2017 Return: Sun Apr 16 2017 Trip spans 11 days
Major Airline
Major Airline
STL
10:25p
SEA
2:48a
4h 23m
nonstop
SEA
4:25a
STL
8:14a
3h 49m
nonstop
Depart: Sat May 6 2017 Return: Sat May 13 2017 Trip spans 8 days
Frontier
Frontier
STL
9:50a
SEA
7:35p
9h 45m
1 stop
SEA
5:58a
STL
5:07p
11h 09m
1 stop
Depart: Wed Mar 22 2017 Return: Tue Apr 4 2017 Trip spans 14 days
United
United
STL
1:50a
SEA
8:07a
6h 17m
1 stop
SEA
11:40a
STL
6:43p
7h 03m
1 stop
Depart: Wed Mar 29 2017 Return: Thu Apr 6 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
STL
3:20p
SEA
7:43p
4h 23m
nonstop
SEA
1:55p
STL
5:39p
3h 44m
nonstop
Depart: Mon Apr 10 2017 Return: Thu Apr 13 2017 Trip spans 4 days
Major Airline
Major Airline
STL
11:20a
SEA
3:39p
4h 19m
nonstop
SEA
9:55a
STL
1:40p
3h 45m
nonstop
Depart: Tue May 23 2017 Return: Tue May 30 2017 Trip spans 8 days
American Airlines
American Airlines
STL
3:15p
SEA
10:39p
7h 24m
1 stop
SEA
11:00a
STL
5:55p
6h 55m
1 stop
Depart: Thu Aug 24 2017 Return: Sun Aug 27 2017 Trip spans 4 days
Delta
Delta
STL
3:44p
SEA
9:47p
6h 03m
1 stop
SEA
3:30a
STL
11:59a
8h 29m
1 stop
Depart: Tue May 9 2017 Return: Sat May 13 2017 Trip spans 5 days
Frontier
Frontier
STL
9:50a
SEA
3:50p
6h 00m
1 stop
SEA
5:58a
STL
5:07p
11h 09m
1 stop
Depart: Thu Mar 30 2017 Return: Tue Apr 4 2017 Trip spans 6 days
United
United
STL
2:50a
SEA
9:26a
6h 36m
1 stop
SEA
9:50a
STL
6:43p
8h 53m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

St. Louis
$206
Destination

Seattle
$206
Airlines Airline reviews

29 travelers who booked a flight from St. Louis to Seattle rated their chosen airlines with an average of 9.0.

Overall
9.3
Boarding
9.0
Crew
9.4
Comfort
8.8
Food
8.3
Entertainment
8.5