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Find Flight Deals from Seattle/Tacoma Intl to Denver International (SEA - DEN)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle/Tacoma Intl to Denver International

(Round-trip)
Depart: Tue Sep 1 2015 Return: Tue Sep 15 2015 Trip spans 15 days
Frontier
Frontier
SEA
3:35p
DEN
6:06p
2h 31m
nonstop
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
Depart: Wed Sep 2 2015 Return: Tue Sep 15 2015 Trip spans 14 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
Depart: Sat Sep 19 2015 Return: Tue Sep 22 2015 Trip spans 4 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
Depart: Sat Oct 3 2015 Return: Sat Oct 10 2015 Trip spans 8 days
Frontier
Frontier
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
Depart: Tue May 12 2015 Return: Thu May 28 2015 Trip spans 17 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Wed May 13 2015 Return: Thu May 28 2015 Trip spans 16 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Wed May 27 2015 Return: Thu May 28 2015 Trip spans 2 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Tue Jun 2 2015 Return: Mon Jun 8 2015 Trip spans 7 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
4:30p
SEA
7:19p
2h 49m
nonstop
Depart: Wed Jun 3 2015 Return: Tue Jun 9 2015 Trip spans 7 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
4:30p
SEA
7:19p
2h 49m
nonstop
Depart: Thu Jun 4 2015 Return: Tue Jun 9 2015 Trip spans 6 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
4:30p
SEA
7:19p
2h 49m
nonstop
Depart: Mon Jun 8 2015 Return: Tue Jun 9 2015 Trip spans 2 days
Frontier
Frontier
SEA
3:50p
DEN
6:20p
2h 30m
nonstop
DEN
4:30p
SEA
7:19p
2h 49m
nonstop
Depart: Wed Sep 9 2015 Return: Wed Sep 16 2015 Trip spans 8 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
Depart: Sat May 2 2015 Return: Tue May 12 2015 Trip spans 11 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Sat May 9 2015 Return: Tue May 12 2015 Trip spans 4 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Sat May 16 2015 Return: Tue May 19 2015 Trip spans 4 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Sun May 10 2015 Return: Mon May 11 2015 Trip spans 2 days
United
United
SEA
4:00a
DEN
6:35a
2h 35m
nonstop
DEN
6:04p
SEA
8:56p
2h 52m
nonstop
Depart: Sun May 17 2015 Return: Wed Jun 24 2015 Trip spans 39 days
Alaska Airlines
Alaska Airlines
SEA
2:40a
DEN
5:15a
2h 35m
nonstop
DEN
9:10a
SEA
11:55a
2h 45m
nonstop
Depart: Tue Jun 23 2015 Return: Wed Jun 24 2015 Trip spans 2 days
Delta
Delta
SEA
3:45a
DEN
6:30a
2h 45m
nonstop
DEN
8:00a
SEA
10:55a
2h 55m
nonstop
Depart: Sun Aug 30 2015 Return: Sun Sep 6 2015 Trip spans 8 days
American Airlines
American Airlines
SEA
2:40a
DEN
5:10a
2h 30m
nonstop
DEN
7:05a
SEA
9:47a
2h 42m
nonstop
Depart: Fri May 1 2015 Return: Sat May 9 2015 Trip spans 9 days
US Airways
US Airways
SEA
1:15a
DEN
6:26a
5h 11m
1 stop
DEN
8:17a
SEA
1:52p
5h 35m
1 stop
Direct flights SEA to DEN on American Airlines
Flight # Depart SEA Arrive DEN Sun Mon Tue Wed Thu Fri Sat Valid Between
6830 6:40 am 10:15 am May 3 - Jun 6
6932 8:30 am 12:08 pm May 3 - Jun 6
6934 1:20 pm 5:00 pm May 3 - Jun 6
7053 6:55 pm 10:25 pm May 3 - Jun 6
6987 8:30 pm 11:58 pm May 3 - Jun 6
Airports
Origin

Seattle
$145
Destination

Denver
$145