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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 May 5 2015 Return: Wed May 6 2015 Trip spans 2 days
Frontier
Frontier
SEA
6:20a
DEN
8:54a
2h 34m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Tue May 12 2015 Return: Tue May 19 2015 Trip spans 8 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Tue May 19 2015 Return: Wed May 20 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: Wed May 20 2015 Return: Tue Jun 2 2015 Trip spans 14 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
4:30p
SEA
7:19p
2h 49m
nonstop
Depart: Wed May 27 2015 Return: Tue Jun 2 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 May 28 2015 Return: Wed Jun 10 2015 Trip spans 14 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Wed Jun 3 2015 Return: Wed Jun 10 2015 Trip spans 8 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
Depart: Wed Sep 9 2015 Return: Tue Sep 15 2015 Trip spans 7 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
Depart: Wed Sep 16 2015 Return: Tue Sep 22 2015 Trip spans 7 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
Depart: Thu Sep 24 2015 Return: Sat Oct 3 2015 Trip spans 10 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
Depart: Fri Sep 25 2015 Return: Sat Oct 3 2015 Trip spans 9 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
Depart: Sun Sep 27 2015 Return: Sat Oct 3 2015 Trip spans 7 days
Frontier
Frontier
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
Depart: Fri Oct 2 2015 Return: Wed Oct 7 2015 Trip spans 6 days
Frontier
Frontier
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
Depart: Mon May 4 2015 Return: Tue May 5 2015 Trip spans 2 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
4:30p
SEA
7:19p
2h 49m
nonstop
Depart: Wed May 6 2015 Return: Sat May 9 2015 Trip spans 4 days
Frontier
Frontier
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
DEN
4:30p
SEA
7:19p
2h 49m
nonstop
Depart: Fri May 15 2015 Return: Sat May 16 2015 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
4:30p
DEN
6:58p
2h 28m
nonstop
DEN
2:00a
SEA
4:43a
2h 43m
nonstop
Depart: Mon Jun 15 2015 Return: Tue Jun 16 2015 Trip spans 2 days
Delta
Delta
SEA
3:35p
DEN
6:21p
2h 46m
nonstop
DEN
6:30a
SEA
9:25a
2h 55m
nonstop
Depart: Sat Jul 4 2015 Return: Tue Jul 21 2015 Trip spans 18 days
American Airlines
American Airlines
SEA
2:35a
DEN
5:10a
2h 35m
nonstop
DEN
2:50p
SEA
5:35p
2h 45m
nonstop
Depart: Sun Jul 5 2015 Return: Tue Jul 21 2015 Trip spans 17 days
United
United
SEA
1:25a
DEN
3:56a
2h 31m
nonstop
DEN
6:09p
SEA
8:57p
2h 48m
nonstop
Depart: Mon Sep 7 2015 Return: Tue Sep 15 2015 Trip spans 9 days
US Airways
US Airways
SEA
8:15p
DEN
3:08a
6h 53m
1 stop
DEN
8:17a
SEA
1:45p
5h 28m
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
6830 6:40 am 10:11 am Apr 7 - May 2
6932 8:30 am 12:08 pm May 3 - Jun 6
6932 8:35 am 12:10 pm Apr 7 - May 1
6932 8:35 am 12:10 pm May 2 - May 2
6934 1:20 pm 5:00 pm May 3 - Jun 6
6934 1:20 pm 4:52 pm Apr 7 - May 2
7053 6:55 pm 10:23 pm Apr 27 - May 2
7053 6:55 pm 10:25 pm May 3 - Jun 6
6987 8:30 pm 11:58 pm May 3 - Jun 6
6987 8:30 pm 11:56 pm Apr 7 - May 2
Airports
Origin

Seattle
$145
Destination

Denver
$145