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 Jan 17 2018 Return: Sat Jan 20 2018 Trip spans 4 days
Multiple Airlines
Multiple Airlines
STL
12:00a
SEA
9:29a
9h 29m
1 stop
SEA
12:00a
STL
3:39a
3h 39m
nonstop
Depart: Sat Feb 3 2018 Return: Mon Feb 5 2018 Trip spans 3 days
Frontier
Frontier
STL
12:00a
SEA
9:29a
9h 29m
1 stop
SEA
12:00a
STL
10:31p
22h 31m
1 stop
Depart: Wed Jan 10 2018 Return: Sat Jan 13 2018 Trip spans 4 days
Alaska Airlines
Alaska Airlines
STL
12:00a
SEA
4:40a
4h 40m
nonstop
SEA
12:00a
STL
3:39a
3h 39m
nonstop
Depart: Sat Mar 3 2018 Return: Mon Mar 5 2018 Trip spans 3 days
Frontier
Frontier
STL
12:00a
SEA
9:31a
9h 31m
1 stop
SEA
12:00a
STL
3:57p
15h 57m
1 stop
Depart: Wed Mar 21 2018 Return: Wed Mar 28 2018 Trip spans 8 days
Multiple Airlines
Multiple Airlines
STL
12:00a
SEA
9:31a
9h 31m
1 stop
SEA
12:00a
STL
11:51a
11h 51m
1 stop
Depart: Sat May 5 2018 Return: Fri May 11 2018 Trip spans 7 days
Frontier
Frontier
STL
12:00a
SEA
12:57p
12h 57m
1 stop
SEA
12:00a
STL
12:24p
12h 24m
1 stop
Depart: Mon May 14 2018 Return: Wed May 16 2018 Trip spans 3 days
Frontier
Frontier
STL
12:00a
SEA
12:57p
12h 57m
1 stop
SEA
12:00a
STL
12:24p
12h 24m
1 stop
Depart: Tue Jun 5 2018 Return: Tue Jun 12 2018 Trip spans 8 days
Multiple Airlines
Multiple Airlines
STL
12:00a
SEA
4:09p
16h 09m
1 stop
SEA
12:00a
STL
12:30p
12h 30m
1 stop
Depart: Sat Jun 2 2018 Return: Mon Jun 4 2018 Trip spans 3 days
Frontier
Frontier
STL
12:00a
SEA
12:57p
12h 57m
1 stop
SEA
12:00a
STL
12:24p
12h 24m
1 stop
Depart: Thu Feb 1 2018 Return: Tue Feb 6 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
STL
12:00a
SEA
4:40a
4h 40m
nonstop
SEA
12:00a
STL
9:22p
21h 22m
1 stop
Depart: Fri Mar 9 2018 Return: Fri Mar 16 2018 Trip spans 7 days
Alaska Airlines
Alaska Airlines
STL
12:00a
SEA
4:45a
4h 45m
nonstop
SEA
12:00a
STL
3:53a
3h 53m
nonstop
Depart: Thu Apr 19 2018 Return: Mon Apr 23 2018 Trip spans 5 days
Frontier
Frontier
STL
12:00a
SEA
4:09p
16h 09m
1 stop
SEA
12:00a
STL
6:29p
18h 29m
1 stop
Depart: Tue May 29 2018 Return: Tue Jun 5 2018 Trip spans 8 days
Multiple Airlines
Multiple Airlines
STL
12:00a
SEA
4:09p
16h 09m
1 stop
SEA
12:00a
STL
12:30p
12h 30m
1 stop
Depart: Wed Jun 20 2018 Return: Tue Jun 26 2018 Trip spans 7 days
Frontier
Frontier
STL
12:00a
SEA
9:46a
9h 46m
1 stop
SEA
12:00a
STL
6:08a
6h 08m
1 stop
Depart: Fri Dec 22 2017 Return: Thu Dec 28 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
STL
12:00a
SEA
4:44a
4h 44m
nonstop
SEA
12:00a
STL
3:55a
3h 55m
nonstop
Depart: Fri Dec 15 2017 Return: Sun Dec 17 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
STL
12:00a
SEA
7:07p
19h 07m
2 stops
SEA
12:00a
STL
6:34a
6h 34m
1 stop
Direct flights STL to SEA on Southwest
Flight # Depart STL Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
1809 1:40 pm 4:10 pm Dec 25 - Dec 25
2737 1:40 pm 4:10 pm Dec 23 - Dec 30
4627 1:40 pm 4:10 pm Dec 4 - Dec 19
4627 1:40 pm 4:10 pm Jan 1 - Jan 5
6657 1:50 pm 4:20 pm Dec 20 - Jan 2
6116 1:55 pm 4:30 pm Jan 8 - Feb 13
2321 2:10 pm 4:45 pm Jan 14 - Jan 28
4455 2:15 pm 4:45 pm Dec 24 - Dec 24
4483 2:15 pm 4:45 pm Dec 31 - Dec 31
5610 2:15 pm 4:45 pm Jan 7 - Jan 7
4357 2:30 pm 5:05 pm Jan 13 - Mar 3
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

St. Louis
$229
Destination

Seattle
$229