SEARCH ONE AND DONE. - Compare hundreds of travel sites at once.
Choose where to book.
Find deals from over 400 airlines worldwide.

Cheap Flights from Denver to Washington (DEN - IAD)

DepartReturn
1 adult
Note: some airlines charge for infants in laps.
The price shown for each flight will be the average for all passengers including any infants.
Choose Sites to Compare vs. KAYAK

Best fares from DEN to IAD (Found by others)

Sun Mon Tue Wed Thu Fri Sat
  1 $454 2 $454 3 $454 4 $342 5 $285 6 $285
7 $454 8 $279 9 $279 10 $285 11 $285 12 $285 13 $285
14 $454 15 $285 16 $285 17 $279 18 $285 19 $285 20 $285
21 $361 22 $285 23 $279 24 $220 25 $285 26 $279 27 $285
28 $352 29 $279 30 $220        
KAYAK searches hundreds of sites to find the best rate for your next flight from Denver to Washington. Get the best flight deal for your Washington trip!
Here's how it works. Search KAYAK for a flight ticket from Denver to Washington. Sort, filter and compare results on one web page. Then book your plane ticket direct on the airline or travel agent site of your choice!
Direct flights DEN to IAD on United
Flight # Depart DEN Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
1760 6:05 am 11:25 am Sep 11 - Sep 19
1760 6:05 am 11:25 am Sep 3 - Sep 10
377 6:05 am 11:26 am Oct 4 - Oct 4
452 6:05 am 11:26 am Oct 3 - Oct 24
452 6:05 am 11:22 am Sep 9 - Sep 16
452 6:05 am 11:26 am Sep 20 - Sep 20
452 6:05 am 11:26 am Sep 22 - Oct 2
452 6:05 am 11:26 am Oct 11 - Oct 11
452 6:05 am 11:26 am Sep 26 - Sep 26
452 8:07 am 1:30 pm Sep 21 - Sep 21
452 8:07 am 1:30 pm Oct 4 - Oct 4
495 8:07 am 1:30 pm Sep 28 - Oct 5
581 8:07 am 1:30 pm Sep 22 - Oct 1
581 8:07 am 1:30 pm Sep 25 - Sep 26
581 8:07 am 1:30 pm Oct 2 - Oct 13
581 8:07 am 1:30 pm Oct 7 - Oct 14
658 8:07 am 1:30 pm Oct 11 - Oct 11
658 8:07 am 1:30 pm Sep 20 - Sep 20
948 8:07 am 1:30 pm Sep 27 - Sep 27
1024 8:18 am 1:40 pm Sep 13 - Sep 13
1285 8:18 am 1:40 pm Sep 12 - Sep 17
1285 8:18 am 1:40 pm Sep 9 - Sep 10
1285 8:18 am 1:40 pm Sep 7 - Sep 14
1285 8:18 am 1:40 pm Sep 16 - Sep 16
1285 8:18 am 1:40 pm Sep 19 - Sep 19
1572 8:18 am 1:40 pm Sep 8 - Sep 18
1282 10:00 am 3:18 pm Sep 20 - Sep 20
1282 10:00 am 3:18 pm Sep 27 - Sep 27
1282 10:00 am 3:18 pm Oct 4 - Oct 4
1282 10:00 am 3:18 pm Oct 11 - Oct 11
1143 10:15 am 3:30 pm Sep 21 - Sep 21
1572 10:15 am 3:30 pm Sep 22 - Sep 29
1572 10:15 am 3:30 pm Oct 6 - Oct 13
1572 10:15 am 3:30 pm Sep 24 - Sep 24
1733 10:15 am 3:30 pm Oct 5 - Oct 5
1733 10:15 am 3:30 pm Oct 9 - Oct 15
1733 10:15 am 3:30 pm Sep 26 - Oct 1
1733 10:15 am 3:30 pm Oct 10 - Oct 16
1733 10:15 am 3:33 pm Sep 28 - Sep 28
1733 10:15 am 3:30 pm Oct 2 - Oct 8
1760 10:15 am 3:30 pm Oct 7 - Oct 14
1760 10:15 am 3:30 pm Sep 23 - Sep 30
1282 10:36 am 3:56 pm Sep 16 - Sep 16
1282 10:36 am 3:56 pm Sep 18 - Sep 18
1282 10:36 am 3:56 pm Sep 8 - Sep 15
1282 10:36 am 3:56 pm Sep 19 - Sep 19
1297 10:36 am 3:56 pm Sep 13 - Sep 13
1654 10:36 am 3:56 pm Sep 10 - Sep 10
1654 10:36 am 3:56 pm Sep 17 - Sep 17
495 10:36 am 3:53 pm Sep 7 - Sep 14
1282 11:15 am 4:34 pm Sep 14 - Sep 14
1285 11:15 am 4:34 pm Sep 18 - Sep 18
1297 11:15 am 4:34 pm Sep 16 - Sep 16
1447 11:15 am 4:34 pm Sep 19 - Sep 19
1285 11:16 am 4:35 pm Sep 27 - Oct 25
1297 11:16 am 4:35 pm Sep 20 - Sep 20
1447 11:17 am 4:36 pm Sep 12 - Sep 12
1447 11:17 am 4:36 pm Sep 17 - Sep 17
1285 11:19 am 4:38 pm Sep 11 - Sep 11
1285 11:19 am 4:38 pm Sep 15 - Sep 15
1285 11:20 am 4:39 pm Sep 13 - Sep 13
1447 11:20 am 4:39 pm Sep 10 - Sep 10
1285 11:21 am 4:40 pm Sep 23 - Oct 21
1760 11:21 am 4:40 pm Sep 21 - Oct 19
1760 11:21 am 4:40 pm Sep 22 - Oct 24
795 12:30 pm 5:50 pm Sep 20 - Sep 20
1521 12:40 pm 6:01 pm Sep 21 - Sep 21
1521 12:40 pm 6:01 pm Sep 28 - Sep 28
795 12:40 pm 6:00 pm Oct 5 - Oct 5
795 12:43 pm 6:03 pm Sep 27 - Oct 18
795 12:49 pm 6:09 pm Sep 22 - Oct 20
795 12:49 pm 6:09 pm Sep 24 - Oct 8
795 12:49 pm 6:09 pm Sep 23 - Oct 21
658 1:15 pm 6:35 pm Sep 9 - Sep 16
795 1:15 pm 6:35 pm Sep 11 - Sep 19
795 1:15 pm 6:35 pm Sep 8 - Sep 15
795 1:15 pm 6:35 pm Sep 7 - Sep 14
948 1:15 pm 6:35 pm Sep 10 - Sep 17
1521 1:19 pm 6:40 pm Sep 13 - Sep 13
1143 3:32 pm 8:52 pm Sep 28 - Sep 28
1154 3:32 pm 8:49 pm Oct 3 - Oct 24
1154 3:32 pm 8:49 pm Sep 24 - Sep 24
1154 3:32 pm 8:49 pm Sep 22 - Oct 6
1509 3:32 pm 8:49 pm Sep 26 - Sep 26
1509 3:32 pm 8:49 pm Sep 23 - Sep 25
1530 3:32 pm 8:49 pm Oct 2 - Oct 16
1530 3:32 pm 8:49 pm Sep 30 - Oct 21
1530 3:32 pm 8:49 pm Oct 1 - Oct 22
1538 3:32 pm 8:52 pm Oct 4 - Oct 4
1733 3:32 pm 8:49 pm Sep 21 - Sep 21
1744 3:32 pm 8:49 pm Oct 5 - Oct 5
1760 3:32 pm 8:52 pm Oct 11 - Oct 11
652 3:32 pm 8:49 pm Sep 20 - Sep 27
1551 3:40 pm 8:54 pm Sep 10 - Sep 10
1636 3:40 pm 8:57 pm Sep 7 - Sep 14
1733 3:40 pm 8:54 pm Sep 8 - Sep 15
1733 3:40 pm 8:54 pm Sep 18 - Sep 19
1733 3:40 pm 8:57 pm Sep 9 - Sep 16
652 3:40 pm 8:57 pm Sep 17 - Sep 17
1746 5:25 pm 10:46 pm Sep 6 - Sep 13
1070 5:35 pm 10:54 pm Oct 7 - Oct 14
1070 5:35 pm 10:54 pm Sep 23 - Sep 30
1509 5:40 pm 10:59 pm Sep 24 - Sep 24
1521 5:40 pm 10:59 pm Oct 5 - Oct 5
1530 5:40 pm 10:59 pm Sep 22 - Sep 25
1542 5:40 pm 10:59 pm Sep 29 - Oct 17
1542 5:40 pm 10:59 pm Oct 1 - Oct 22
377 5:40 pm 10:58 pm Sep 21 - Sep 28
377 5:50 pm 11:08 pm Sep 26 - Sep 26
1746 5:58 pm 11:19 pm Sep 11 - Sep 11
377 5:58 pm 11:18 pm Sep 2 - Sep 10
377 5:58 pm 11:18 pm Sep 14 - Sep 14
377 5:58 pm 11:18 pm Sep 12 - Sep 18
377 6:01 pm 11:21 pm Sep 19 - Sep 19
1652 7:40 pm 12:59 am Sep 17 - Sep 17
1744 7:40 pm 12:59 am Sep 5 - Sep 19
1744 7:40 pm 12:59 am Sep 14 - Sep 14
1744 7:40 pm 12:59 am Sep 10 - Sep 10
1154 7:48 pm 1:07 am Sep 25 - Sep 25
1509 7:48 pm 1:07 am Oct 1 - Oct 9
1509 7:48 pm 1:07 am Oct 10 - Oct 10
1733 7:48 pm 1:07 am Oct 6 - Oct 20
1733 7:48 pm 1:07 am Sep 22 - Sep 29
404 7:48 pm 1:06 am Sep 26 - Sep 26
1469 7:54 pm 1:13 am Sep 21 - Sep 21
1636 7:54 pm 1:13 am Sep 28 - Sep 28
658 7:54 pm 1:10 am Oct 5 - Oct 19