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

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

Book cheap flights from Denver International to Seattle/Tacoma Intl

(Round-trip)
Depart: Tue May 12 2015 Return: Wed May 13 2015 Trip spans 2 days
Frontier
Frontier
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
Depart: Wed May 13 2015 Return: Tue May 19 2015 Trip spans 7 days
Frontier
Frontier
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
Depart: Tue May 19 2015 Return: Sat May 23 2015 Trip spans 5 days
Frontier
Frontier
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
Depart: Tue Sep 22 2015 Return: Sun Sep 27 2015 Trip spans 6 days
Frontier
Frontier
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Wed Sep 23 2015 Return: Sun Sep 27 2015 Trip spans 5 days
Frontier
Frontier
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Sat Sep 26 2015 Return: Wed Sep 30 2015 Trip spans 5 days
Frontier
Frontier
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
Depart: Wed Oct 7 2015 Return: Sat Oct 10 2015 Trip spans 4 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
Depart: Sat Oct 10 2015 Return: Wed Oct 14 2015 Trip spans 5 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
Depart: Wed May 20 2015 Return: Wed May 27 2015 Trip spans 8 days
Frontier
Frontier
DEN
3:45a
SEA
6:32a
2h 47m
nonstop
SEA
3:40p
DEN
6:10p
2h 30m
nonstop
Depart: Wed Sep 9 2015 Return: Tue Sep 15 2015 Trip spans 7 days
Frontier
Frontier
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Sat Sep 12 2015 Return: Tue Sep 15 2015 Trip spans 4 days
Frontier
Frontier
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Wed Sep 16 2015 Return: Sat Sep 19 2015 Trip spans 4 days
Frontier
Frontier
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Sat Sep 19 2015 Return: Sat Sep 26 2015 Trip spans 8 days
Frontier
Frontier
DEN
4:15p
SEA
7:07p
2h 52m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Tue Oct 6 2015 Return: Sat Oct 10 2015 Trip spans 5 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
Depart: Tue Oct 13 2015 Return: Mon Oct 19 2015 Trip spans 7 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
Depart: Wed Jun 24 2015 Return: Tue Jun 30 2015 Trip spans 7 days
American Airlines
American Airlines
DEN
9:10a
SEA
11:55a
2h 45m
nonstop
SEA
4:30a
DEN
7:06a
2h 36m
nonstop
Depart: Sat Jul 4 2015 Return: Wed Jul 8 2015 Trip spans 5 days
Delta
Delta
DEN
6:30a
SEA
9:25a
2h 55m
nonstop
SEA
9:55a
DEN
12:25p
2h 30m
nonstop
Depart: Sat Aug 15 2015 Return: Tue Aug 18 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
DEN
2:00a
SEA
4:40a
2h 40m
nonstop
SEA
2:35a
DEN
5:10a
2h 35m
nonstop
Depart: Sun Jul 5 2015 Return: Wed Jul 8 2015 Trip spans 4 days
United
United
DEN
3:55a
SEA
10:05a
6h 10m
1 stop
SEA
1:25a
DEN
3:58a
2h 33m
nonstop
Depart: Fri Jul 17 2015 Return: Thu Jul 23 2015 Trip spans 7 days
US Airways
US Airways
DEN
5:05p
SEA
10:29p
5h 24m
1 stop
SEA
4:25a
DEN
10:04a
5h 39m
1 stop
Direct flights DEN to SEA on Delta
Flight # Depart DEN Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
4562 8:15 am 10:07 am Jun 4 - Jun 4
5751 10:30 am 12:25 pm Jun 4 - Jul 3
5680 12:00 pm 1:55 pm Jun 4 - Jun 27
4483 4:59 pm 6:54 pm Jun 4 - Jun 28
5838 6:59 pm 8:52 pm Jun 4 - Jun 30
Airports
Origin

Denver
$145
Destination

Seattle
$145