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Find Flight Deals from Washington Dulles Intl to Denver International (IAD - DEN)

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

Book cheap flights from Washington Dulles Intl to Denver International

(Round-trip)
Depart: Wed Mar 4 2015 Return: Sun Mar 8 2015 Trip spans 4 days
Frontier
Frontier
IAD
1:55a
DEN
12:35p
10h 40m
1 stop
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Wed Apr 8 2015 Return: Wed Apr 15 2015 Trip spans 8 days
Frontier
Frontier
IAD
8:40a
DEN
4:36p
7h 56m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Wed Apr 22 2015 Return: Wed Apr 29 2015 Trip spans 8 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Wed May 6 2015 Return: Tue May 12 2015 Trip spans 7 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Tue May 12 2015 Return: Wed May 20 2015 Trip spans 9 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Wed May 13 2015 Return: Wed May 20 2015 Trip spans 8 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Tue Feb 24 2015 Return: Mon Mar 9 2015 Trip spans 13 days
Multiple Airlines
Multiple Airlines
IAD
12:55p
DEN
7:06p
6h 11m
1 stop
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Mon Mar 2 2015 Return: Mon Mar 9 2015 Trip spans 7 days
Frontier
Frontier
IAD
1:55a
DEN
12:35p
10h 40m
1 stop
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Mon May 4 2015 Return: Fri May 8 2015 Trip spans 5 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Thu May 7 2015 Return: Mon May 11 2015 Trip spans 5 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Mon May 11 2015 Return: Thu May 14 2015 Trip spans 4 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Thu May 14 2015 Return: Tue May 19 2015 Trip spans 6 days
Frontier
Frontier
IAD
8:40a
DEN
4:35p
7h 55m
2 stops
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Tue Apr 14 2015 Return: Tue Apr 21 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
3:59p
DEN
10:05p
6h 06m
1 stop
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Thu Apr 23 2015 Return: Fri Apr 24 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
3:59p
DEN
10:05p
6h 06m
1 stop
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Tue Mar 10 2015 Return: Wed Mar 11 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
3:00a
DEN
9:23a
6h 23m
1 stop
DEN
3:00a
IAD
10:15a
7h 15m
2 stops
Depart: Fri Feb 6 2015 Return: Tue Mar 3 2015 Trip spans 26 days
US Airways
US Airways
IAD
2:59p
DEN
8:57p
5h 58m
1 stop
DEN
8:20p
IAD
1:45a
5h 25m
1 stop
Depart: Mon Feb 9 2015 Return: Tue Feb 10 2015 Trip spans 2 days
American Airlines
American Airlines
IAD
12:20a
DEN
6:20a
6h 00m
1 stop
DEN
8:20p
IAD
3:27a
7h 07m
1 stop
Depart: Sat Feb 14 2015 Return: Tue Feb 17 2015 Trip spans 4 days
Delta
Delta
IAD
12:40p
DEN
7:11p
6h 31m
1 stop
DEN
1:00a
IAD
6:39a
5h 39m
1 stop
Depart: Wed May 27 2015 Return: Mon Jun 1 2015 Trip spans 6 days
JetBlue Airways
JetBlue Airways
IAD
1:31p
DEN
8:18p
6h 47m
1 stop
DEN
7:09p
IAD
4:58a
9h 49m
1 stop
Depart: Fri Mar 6 2015 Return: Mon Mar 9 2015 Trip spans 3 days
United
United
IAD
5:06p
DEN
9:11p
4h 05m
nonstop
DEN
6:07p
IAD
5:27a
11h 20m
1 stop
Change your search
Direct flights IAD to DEN on United
Flight # Depart IAD Arrive DEN Sun Mon Tue Wed Thu Fri Sat Valid Between
1088 7:00 am 9:03 am Mar 10 - Mar 24
1199 7:00 am 9:03 am Mar 11 - Mar 25
1074 7:04 am 9:06 am Feb 20 - Feb 27
1074 7:04 am 9:06 am Feb 13 - Feb 13
1074 7:04 am 9:06 am Feb 23 - Feb 23
1139 7:04 am 9:06 am Feb 24 - Mar 3
1139 7:04 am 9:06 am Feb 18 - Feb 18
1228 7:04 am 9:06 am Mar 2 - Mar 2
1228 7:04 am 9:06 am Feb 16 - Feb 16
1436 7:04 am 9:06 am Feb 25 - Mar 4
1436 7:04 am 9:06 am Feb 17 - Feb 17
1445 7:04 am 9:06 am Feb 19 - Feb 19
1445 7:04 am 9:06 am Feb 26 - Feb 26
505 7:04 am 9:04 am Feb 12 - Feb 12
427 7:05 am 9:06 am Mar 9 - Mar 12
427 7:05 am 9:06 am Mar 5 - Mar 5
1428 7:06 am 9:08 am Feb 8 - Feb 8
427 7:06 am 9:07 am Mar 6 - Mar 6
1259 7:11 am 9:13 am Feb 11 - Feb 11
1535 7:11 am 9:13 am Feb 3 - Feb 10
1535 7:11 am 9:13 am Feb 2 - Feb 9
403 8:15 am 10:16 am Feb 24 - Feb 24
403 8:15 am 10:16 am Mar 3 - Mar 3
1072 8:20 am 10:25 am Feb 25 - Feb 25
1088 8:20 am 10:25 am Mar 4 - Mar 4
1139 8:20 am 10:25 am Feb 17 - Feb 17
1228 8:20 am 10:25 am Feb 14 - Feb 28
1445 8:20 am 10:21 am Feb 12 - Feb 12
1536 8:22 am 10:22 am Mar 8 - Mar 8
1683 8:22 am 10:27 am Feb 13 - Feb 13
328 8:22 am 10:25 am Feb 26 - Mar 2
328 8:22 am 10:25 am Feb 16 - Feb 23
328 8:24 am 10:20 am Mar 7 - Mar 7
339 8:25 am 10:21 am Mar 5 - Mar 5
363 8:25 am 10:21 am Mar 9 - Mar 9
403 8:25 am 10:26 am Feb 22 - Mar 1
403 8:25 am 10:26 am Feb 15 - Feb 15
1228 8:26 am 10:22 am Feb 9 - Feb 9
1074 8:29 am 10:25 am Feb 3 - Feb 10
1123 8:29 am 10:25 am Feb 8 - Feb 8
1535 8:29 am 10:25 am Feb 11 - Feb 11
363 8:31 am 10:27 am Mar 6 - Mar 6
363 8:34 am 10:30 am Mar 10 - Mar 11
1265 9:05 am 11:05 am Mar 9 - Mar 26
1265 9:05 am 11:05 am Mar 5 - Mar 5
1074 9:06 am 11:11 am Mar 1 - Mar 1
1111 9:06 am 11:11 am Feb 22 - Feb 22
1123 9:06 am 11:11 am Feb 15 - Feb 15
707 9:30 am 11:31 am Feb 14 - Feb 21
707 9:30 am 11:33 am Feb 28 - Feb 28
707 9:30 am 11:30 am Jan 29 - Feb 9
707 9:30 am 11:30 am Feb 7 - Feb 8
505 9:35 am 11:36 am Feb 13 - Feb 20
505 9:35 am 11:38 am Feb 23 - Mar 2
980 9:35 am 11:36 am Feb 12 - Feb 12
707 10:00 am 12:03 pm Feb 22 - Mar 1
707 10:00 am 12:01 pm Feb 15 - Feb 15
1123 12:26 pm 2:28 pm Feb 5 - Feb 9
1128 12:26 pm 2:28 pm Feb 11 - Feb 11
363 12:26 pm 2:24 pm Feb 10 - Feb 10
363 12:26 pm 2:26 pm Feb 8 - Feb 8
301 12:30 pm 2:29 pm Mar 8 - Mar 8
1058 12:35 pm 2:37 pm Feb 18 - Feb 18
1074 12:35 pm 2:37 pm Feb 17 - Feb 17
1088 12:35 pm 2:37 pm Feb 12 - Feb 12
1088 12:35 pm 2:37 pm Feb 19 - Feb 19
1088 12:35 pm 2:37 pm Feb 26 - Feb 26
1111 12:35 pm 2:37 pm Feb 28 - Feb 28
1121 12:35 pm 2:37 pm Mar 1 - Mar 1
1127 12:35 pm 2:37 pm Feb 24 - Feb 24
1127 12:35 pm 2:36 pm Mar 6 - Mar 6
1127 12:35 pm 2:37 pm Mar 3 - Mar 3
1150 12:35 pm 2:37 pm Feb 23 - Feb 23
1228 12:35 pm 2:37 pm Feb 20 - Feb 27
1228 12:35 pm 2:37 pm Feb 13 - Feb 13
1281 12:35 pm 2:36 pm Mar 10 - Mar 10
1428 12:35 pm 2:37 pm Feb 25 - Feb 25
1428 12:35 pm 2:37 pm Mar 4 - Mar 4
1428 12:35 pm 2:37 pm Feb 15 - Feb 15
1535 12:35 pm 2:37 pm Feb 14 - Feb 21
1549 12:35 pm 2:36 pm Mar 9 - Mar 9
1602 12:35 pm 2:37 pm Feb 16 - Feb 16
1702 12:35 pm 2:37 pm Feb 22 - Feb 22
714 12:35 pm 2:32 pm Mar 11 - Mar 11
745 12:35 pm 2:34 pm Mar 5 - Mar 5
980 12:35 pm 2:35 pm Mar 2 - Mar 2
735 12:38 pm 2:35 pm Mar 7 - Mar 7
542 3:53 pm 5:55 pm Feb 1 - Feb 8
1055 3:57 pm 5:59 pm Feb 16 - Feb 16
1074 3:57 pm 5:59 pm Feb 25 - Feb 25
1074 3:57 pm 5:59 pm Mar 4 - Mar 4
1090 3:57 pm 5:59 pm Mar 3 - Mar 3
1090 3:57 pm 5:59 pm Feb 24 - Feb 24
1121 3:57 pm 5:59 pm Feb 18 - Feb 18
1121 3:57 pm 5:59 pm Feb 17 - Feb 17
1702 3:57 pm 5:59 pm Feb 12 - Feb 19
1702 3:57 pm 5:59 pm Feb 26 - Feb 26
1702 3:57 pm 5:59 pm Feb 23 - Mar 2
1702 3:57 pm 5:59 pm Feb 27 - Feb 27
1702 3:57 pm 5:59 pm Feb 13 - Feb 13
675 3:57 pm 5:57 pm Feb 20 - Feb 20
542 4:01 pm 5:55 pm Mar 11 - Mar 11
542 4:02 pm 6:04 pm Feb 9 - Feb 9
542 4:02 pm 6:04 pm Feb 11 - Feb 11
542 4:02 pm 6:04 pm Feb 10 - Feb 10
530 4:03 pm 5:55 pm Mar 6 - Mar 6
1090 4:05 pm 6:01 pm Mar 10 - Mar 10
1090 4:05 pm 6:01 pm Mar 5 - Mar 5
1090 4:05 pm 6:01 pm Mar 9 - Mar 9
1090 4:05 pm 6:01 pm Mar 8 - Mar 8
542 4:05 pm 6:05 pm Feb 28 - Feb 28
542 4:06 pm 6:06 pm Feb 14 - Feb 21
1062 4:07 pm 6:09 pm Mar 1 - Mar 1
1062 4:07 pm 6:09 pm Feb 15 - Feb 15
1605 4:07 pm 6:09 pm Feb 22 - Feb 22
1594 4:09 pm 6:05 pm Mar 7 - Mar 7
1044 5:02 pm 6:59 pm Feb 8 - Feb 8
1445 5:05 pm 7:02 pm Feb 11 - Feb 11
822 5:20 pm 7:21 pm Feb 15 - Feb 15
1041 5:29 pm 7:34 pm Feb 25 - Feb 25
1072 5:29 pm 7:34 pm Feb 20 - Feb 20
1130 5:29 pm 7:34 pm Feb 27 - Feb 27
1150 5:29 pm 7:34 pm Mar 2 - Mar 2
1173 5:29 pm 7:34 pm Feb 17 - Feb 24
1173 5:29 pm 7:34 pm Mar 3 - Mar 3
1401 5:29 pm 7:34 pm Feb 18 - Feb 18
1443 5:29 pm 7:34 pm Feb 23 - Feb 26
1443 5:29 pm 7:34 pm Feb 12 - Feb 19
1445 5:29 pm 7:34 pm Mar 4 - Mar 4
505 5:29 pm 7:30 pm Feb 14 - Feb 28
822 5:29 pm 7:30 pm Feb 16 - Feb 22
822 5:29 pm 7:30 pm Mar 1 - Mar 1
822 5:29 pm 7:32 pm Feb 13 - Feb 13
1259 5:32 pm 7:29 pm Feb 2 - Feb 9
980 5:32 pm 7:25 pm Feb 10 - Feb 10
505 6:10 pm 8:13 pm Mar 8 - Mar 8
1002 6:18 pm 8:23 pm Mar 9 - Mar 16
1038 6:18 pm 8:23 pm Mar 5 - Mar 5
1259 6:18 pm 8:21 pm Mar 7 - Mar 7
735 6:18 pm 8:19 pm Mar 10 - Mar 10
822 6:18 pm 8:19 pm Mar 11 - Mar 11
1090 6:20 pm 8:25 pm Mar 6 - Mar 6
1133 9:56 pm 11:59 pm Feb 3 - Feb 11
1133 9:56 pm 11:59 pm Jan 29 - Feb 9
1623 9:56 pm 11:59 pm Feb 8 - Feb 8
1074 10:00 pm 11:59 pm Mar 3 - Mar 3
1074 10:00 pm 11:59 pm Feb 24 - Feb 24
1133 10:00 pm 11:59 pm Feb 25 - Mar 2
1133 10:00 pm 11:59 pm Feb 20 - Feb 23
1133 10:00 pm 11:59 pm Feb 12 - Feb 12
1133 10:00 pm 11:59 pm Feb 18 - Feb 19
1133 10:00 pm 11:59 pm Feb 17 - Feb 17
1133 10:00 pm 11:59 pm Mar 4 - Mar 4
1623 10:00 pm 11:59 pm Feb 21 - Feb 21
1648 10:00 pm 11:59 pm Feb 13 - Feb 13
363 10:00 pm 11:57 pm Feb 28 - Feb 28
554 10:00 pm 11:57 pm Feb 14 - Feb 14
554 10:00 pm 11:57 pm Feb 16 - Feb 16
1074 10:06 pm 12:11 am Mar 5 - Mar 6
1074 10:06 pm 12:11 am Mar 11 - Mar 18
1601 10:06 pm 12:11 am Mar 8 - Mar 8
1623 10:06 pm 12:11 am Mar 7 - Mar 7
1074 10:15 pm 12:20 am Mar 9 - Mar 16
1074 10:30 pm 12:35 am Mar 10 - Mar 10
Airports
Origin

Washington
$251
Destination

Denver
$251