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Find Deals on Flights 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 Aug 18 2015 Return: Tue Aug 25 2015 Trip spans 8 days
Frontier
Frontier
DEN
3:45a
SEA
6:30a
2h 45m
nonstop
SEA
3:45p
DEN
6:16p
2h 31m
nonstop
Depart: Wed Aug 19 2015 Return: Tue Aug 25 2015 Trip spans 7 days
Frontier
Frontier
DEN
3:45a
SEA
6:30a
2h 45m
nonstop
SEA
3:45p
DEN
6:16p
2h 31m
nonstop
Depart: Sat Aug 22 2015 Return: Tue Aug 25 2015 Trip spans 4 days
Frontier
Frontier
DEN
3:45a
SEA
6:30a
2h 45m
nonstop
SEA
3:45p
DEN
6:16p
2h 31m
nonstop
Depart: Tue Aug 25 2015 Return: Tue Sep 1 2015 Trip spans 8 days
Frontier
Frontier
DEN
3:45a
SEA
6:30a
2h 45m
nonstop
SEA
3:45p
DEN
6:16p
2h 31m
nonstop
Depart: Wed Aug 26 2015 Return: Tue Sep 1 2015 Trip spans 7 days
Frontier
Frontier
DEN
3:45a
SEA
6:30a
2h 45m
nonstop
SEA
3:45p
DEN
6:16p
2h 31m
nonstop
Depart: Sat Aug 29 2015 Return: Tue Sep 1 2015 Trip spans 4 days
Frontier
Frontier
DEN
3:45a
SEA
6:30a
2h 45m
nonstop
SEA
3:45p
DEN
6:16p
2h 31m
nonstop
Depart: Tue Sep 1 2015 Return: Tue Sep 8 2015 Trip spans 8 days
Frontier
Frontier
DEN
3:45a
SEA
6:30a
2h 45m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Wed Sep 2 2015 Return: Tue Sep 8 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: Tue Sep 8 2015 Return: Tue Sep 15 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: Wed Sep 9 2015 Return: Wed Sep 30 2015 Trip spans 22 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
Depart: Sat Sep 12 2015 Return: Tue Sep 15 2015 Trip spans 4 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Tue Sep 15 2015 Return: Sat Sep 19 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: Wed Sep 16 2015 Return: Sat Sep 19 2015 Trip spans 4 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
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
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:35p
DEN
6:04p
2h 29m
nonstop
Depart: Wed Sep 23 2015 Return: Wed Sep 30 2015 Trip spans 8 days
Frontier
Frontier
DEN
3:54a
SEA
6:45a
2h 51m
nonstop
SEA
3:25p
DEN
5:54p
2h 29m
nonstop
Depart: Wed Sep 30 2015 Return: Sat Oct 3 2015 Trip spans 4 days
Frontier
Frontier
DEN
6:15a
SEA
9:08a
2h 53m
nonstop
SEA
6:30a
DEN
9:03a
2h 33m
nonstop
Depart: Sun Sep 6 2015 Return: Mon Sep 21 2015 Trip spans 16 days
United
United
DEN
4:00a
SEA
6:53a
2h 53m
nonstop
SEA
1:25a
DEN
4:01a
2h 36m
nonstop
Depart: Thu Sep 3 2015 Return: Sun Sep 6 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
DEN
9:00a
SEA
11:46a
2h 46m
nonstop
SEA
4:25a
DEN
7:00a
2h 35m
nonstop
Depart: Fri Sep 4 2015 Return: Tue Sep 8 2015 Trip spans 5 days
Delta
Delta
DEN
6:33a
SEA
9:30a
2h 57m
nonstop
SEA
9:35a
DEN
12:17p
2h 42m
nonstop
Depart: Fri Nov 20 2015 Return: Fri Nov 27 2015 Trip spans 8 days
American Airlines
American Airlines
DEN
3:50p
SEA
9:30p
5h 40m
1 stop
SEA
1:40a
DEN
4:09a
2h 29m
nonstop
Direct flights DEN to SEA on Delta
Flight # Depart DEN Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
5682 8:00 am 9:53 am Jul 7 - Aug 17
4776 10:30 am 12:25 pm Aug 1 - Aug 15
4776 10:30 am 12:25 pm Jul 11 - Jul 25
5751 10:30 am 12:25 pm Jun 28 - Aug 31
5680 12:05 pm 2:00 pm Jul 1 - Jul 9
5680 12:05 pm 2:00 pm Jul 10 - Jul 31
5680 12:05 pm 2:00 pm Aug 1 - Aug 15
5680 12:05 pm 2:00 pm Aug 2 - Aug 17
4501 3:15 pm 5:10 pm Aug 1 - Aug 15
4501 4:59 pm 6:54 pm Jul 11 - Jul 25
4501 4:59 pm 6:54 pm Jul 1 - Jul 9
4501 4:59 pm 6:54 pm Jul 10 - Aug 17
5840 6:59 pm 8:52 pm Jul 1 - Jul 10
5840 6:59 pm 8:52 pm Jul 11 - Aug 17
Airports
Origin

Denver
$178
Destination

Seattle
$178