$145+ Cheap flights from Denver (DEN) to District of Columbia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAD
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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Find cheap flights from Denver to District of Columbia with Cheapflights
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Cheapest flights from Denver to District of ColumbiaExplore the most affordable flight options available from Denver to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
Explore the most affordable flight options available from Denver to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:37 pm
DEN
- DCA
1 stop8h 33m
Multiple Airlines
Wed 7/157:00 am
DCA
- DEN
Nonstop4h 01m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$279
This Travelocity deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:42 pm
DEN
- IAD
1 stop8h 34m
Frontier
Tue 9/89:20 am
IAD
- DEN
1 stop20h 32m
Frontier
Deal found 6/16![Frontier logo]()
$280
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:58 am
DEN
- IAD
1 stop10h 57m
Frontier
Wed 7/159:50 am
IAD
- DEN
1 stop13h 51m
Frontier
Deal found 6/16![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:52 pm
DEN
- IAD
2 stops12h 45m
Multiple Airlines
Sun 8/163:27 pm
IAD
- DEN
1 stop25h 04m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$283
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:37 pm
DEN
- DCA
1 stop6h 21m
JetBlue
Sat 9/52:15 pm
DCA
- DEN
1 stop10h 27m
JetBlue
Deal found 6/16![JetBlue logo]()
$284
This Trip.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:30 am
DEN
- IAD
1 stop8h 10m
Frontier
Thu 7/167:49 am
IAD
- DEN
1 stop8h 11m
Frontier
Deal found 6/16![Frontier logo]()
$285
This deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2112:30 pm
DEN
- IAD
1 stop6h 23m
Frontier
Tue 7/287:49 am
IAD
- DEN
1 stop8h 11m
Frontier
Deal found 6/16![Frontier logo]()
$289
This Super.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:09 pm
DEN
- DCA
1 stop6h 50m
JetBlue
Mon 8/175:00 pm
DCA
- DEN
1 stop7h 42m
JetBlue
Deal found 6/16![JetBlue logo]()
$290
This Super.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:37 pm
DEN
- DCA
1 stop8h 33m
JetBlue
Wed 7/156:21 am
DCA
- DEN
1 stop8h 50m
JetBlue
Deal found 6/16![JetBlue logo]()
$293
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:37 pm
DEN
- DCA
1 stop6h 21m
Multiple Airlines
Wed 8/127:00 am
DCA
- DEN
Nonstop4h 01m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:03 pm
DEN
- IAD
1 stop11h 17m
Frontier
Mon 8/179:50 am
IAD
- DEN
2 stops14h 30m
Frontier
Deal found 6/16![Frontier logo]()
$296
This Frontier deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:30 am
DEN
- IAD
1 stop11h 58m
Frontier
Mon 9/141:35 pm
IAD
- DEN
1 stop8h 29m
Frontier
Deal found 6/18![Frontier logo]()
$297
Best flights from Denver to District of ColumbiaDiscover carefully curated flight deals from Denver to District of Columbia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
Discover carefully curated flight deals from Denver to District of Columbia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/42:20 pm
DEN
- DCA
1 stop7h 35m
Southwest
Tue 8/114:50 pm
DCA
- DEN
1 stop5h 00m
Southwest
Deal found 6/19![Southwest logo]()
$388
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:35 am
DEN
- DCA
1 stop14h 24m
Delta
Tue 8/46:59 pm
DCA
- DEN
1 stop6h 35m
Delta
Deal found 6/16![Delta logo]()
$423
This KAYAK deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:03 am
DEN
- IAD
1 stop6h 59m
American Airlines
Thu 8/137:57 am
IAD
- DEN
1 stop6h 33m
American Airlines
Deal found 6/17![American Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:59 pm
DEN
- IAD
Nonstop3h 28m
United Airlines
Tue 8/1112:50 pm
IAD
- DEN
Nonstop3h 50m
United Airlines
Deal found 6/20![United Airlines logo]()
$469
This JetBlue deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:37 pm
DEN
- DCA
1 stop8h 33m
JetBlue
Fri 7/171:25 pm
DCA
- DEN
1 stop11h 16m
JetBlue
Deal found 6/20![JetBlue logo]()
$474
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:20 pm
DEN
- DCA
2 stops7h 45m
Southwest
Tue 8/49:35 am
DCA
- DEN
2 stops7h 25m
Southwest
Deal found 6/16![Southwest logo]()
$446
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:00 am
DEN
- IAD
Nonstop3h 30m
United Airlines
Thu 8/205:26 pm
IAD
- DEN
Nonstop4h 04m
United Airlines
Deal found 6/19![United Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:59 am
DEN
- IAD
1 stop7h 24m
Delta
Wed 7/156:46 pm
IAD
- DEN
1 stop6h 41m
Delta
Deal found 6/17![Delta logo]()
$473
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am
DEN
- IAD
Nonstop3h 24m
United Airlines
Fri 9/114:15 pm
IAD
- DEN
Nonstop4h 00m
United Airlines
Deal found 6/16![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:00 am
DEN
- DCA
2 stops6h 40m
Southwest
Sun 9/277:35 pm
DCA
- DEN
1 stop6h 05m
Southwest
Deal found 6/20![Southwest logo]()
$470
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:10 am
DEN
- DCA
1 stop7h 09m
Delta
Fri 7/107:37 pm
DCA
- DEN
1 stop6h 46m
Delta
Deal found 6/17![Delta logo]()
$473
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:40 pm
DEN
- IAD
Nonstop3h 28m
United Airlines
Tue 9/812:50 pm
IAD
- DEN
Nonstop3h 50m
United Airlines
Deal found 6/18![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:00 am
DEN
- DCA
2 stops8h 45m
Southwest
Sat 7/2510:40 am
DCA
- DEN
2 stops7h 55m
Southwest
Deal found 6/17![Southwest logo]()
$489
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:35 am
DEN
- IAD
1 stop9h 44m
Delta
Thu 7/167:26 pm
IAD
- DEN
1 stop6h 57m
Delta
Deal found 6/20![Delta logo]()
$513
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:00 pm
DEN
- IAD
Nonstop3h 32m
United Airlines
Mon 7/276:30 am
IAD
- DEN
Nonstop3h 52m
United Airlines
Deal found 6/16![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:40 am
DEN
- DCA
1 stop5h 55m
Southwest
Sun 10/257:55 am
DCA
- DEN
2 stops6h 55m
Southwest
Deal found 6/18![Southwest logo]()
$494
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:30 am
DEN
- DCA
Nonstop3h 29m
United Airlines
Tue 8/44:13 pm
DCA
- DEN
Nonstop4h 12m
United Airlines
Deal found 6/16![United Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1010:52 am
DEN
- IAD
1 stop8h 11m
Delta
Sun 7/126:00 am
IAD
- DEN
1 stop5h 47m
Delta
Deal found 6/17![Delta logo]()
$553
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:20 am
DEN
- DCA
1 stop4h 40m
Southwest
Sun 11/297:20 pm
DCA
- DEN
1 stop7h 20m
Southwest
Deal found 6/16![Southwest logo]()
$514
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:13 pm
DEN
- IAD
Nonstop3h 32m
United Airlines
Tue 7/2110:23 pm
IAD
- DEN
Nonstop4h 07m
United Airlines
Deal found 6/18![United Airlines logo]()
$506
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/71:15 pm
DEN
- DCA
1 stop5h 40m
Southwest
Wed 7/157:25 am
DCA
- DEN
2 stops7h 10m
Southwest
Deal found 6/20![Southwest logo]()
$518
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:35 am
DEN
- DCA
2 stops8h 20m
Southwest
Sat 11/286:05 am
DCA
- DEN
2 stops6h 50m
Southwest
Deal found 6/20![Southwest logo]()
$543
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:13 am
DEN
- IAD
Nonstop3h 28m
United Airlines
Sun 8/910:23 pm
IAD
- DEN
Nonstop4h 07m
United Airlines
Deal found 6/20![United Airlines logo]()
$573
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:59 pm
DEN
- IAD
Nonstop3h 28m
United Airlines
Sat 7/113:56 pm
IAD
- DEN
Nonstop4h 07m
United Airlines
Deal found 6/20![United Airlines logo]()
$587
Last-minute flights from Denver to District of ColumbiaDiscover last-minute flight deals from Denver to District of Columbia. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to District of Columbia. Data last updated June 21, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:29 pm
DEN
- IAD
1 stop7h 51m
Frontier
Mon 7/139:50 am
IAD
- DEN
1 stop19h 58m
Frontier
Deal found 6/20![Frontier logo]()
$300
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:29 pm
DEN
- IAD
1 stop7h 51m
Frontier
Wed 7/1511:11 am
IAD
- DEN
1 stop13h 49m
Frontier
Deal found 6/20![Frontier logo]()
$302
This Trip.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:30 am
DEN
- IAD
1 stop8h 10m
Frontier
Thu 7/167:49 am
IAD
- DEN
1 stop8h 11m
Frontier
Deal found 6/16![Frontier logo]()
$285
This Trip.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:30 am
DEN
- IAD
1 stop8h 44m
Frontier
Tue 7/141:32 pm
IAD
- DEN
1 stop11h 28m
Frontier
Deal found 6/18![Frontier logo]()
$301
This Frontier deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:30 am
DEN
- IAD
1 stop8h 04m
Frontier
Sat 7/189:57 pm
IAD
- DEN
1 stop10h 31m
Frontier
Deal found 6/17![Frontier logo]()
$298
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:25 am
DEN
- DCA
Nonstop3h 34m
Multiple Airlines
Sat 7/186:20 am
DCA
- DEN
1 stop8h 51m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$300
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:37 pm
DEN
- DCA
1 stop8h 33m
Multiple Airlines
Wed 7/157:00 am
DCA
- DEN
Nonstop4h 01m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$279
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:58 am
DEN
- IAD
1 stop10h 57m
Frontier
Wed 7/159:50 am
IAD
- DEN
1 stop13h 51m
Frontier
Deal found 6/16![Frontier logo]()
$281
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:37 pm
DEN
- DCA
1 stop8h 33m
Multiple Airlines
Thu 7/166:00 pm
DCA
- DEN
Nonstop4h 07m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$290
This Super.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:37 pm
DEN
- DCA
1 stop8h 33m
JetBlue
Wed 7/156:21 am
DCA
- DEN
1 stop8h 50m
JetBlue
Deal found 6/16![JetBlue logo]()
$293
This Frontier deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:30 am
DEN
- IAD
1 stop8h 04m
Frontier
Mon 7/2012:28 pm
IAD
- DEN
1 stop12h 01m
Frontier
Deal found 6/19![Frontier logo]()
$303
This deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2112:30 pm
DEN
- IAD
1 stop6h 23m
Frontier
Tue 7/287:49 am
IAD
- DEN
1 stop8h 11m
Frontier
Deal found 6/16![Frontier logo]()
$289
One-way flights from Denver to District of ColumbiaSearch for one-way flight options from Denver to District of Columbia. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
Search for one-way flight options from Denver to District of Columbia. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:12 pm
DEN
- IAD
2 stops40h 04m
Frontier
Deal found 6/16![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:52 pm
DEN
- IAD
2 stops24h 03m
Frontier
Deal found 6/16![Frontier logo]()
$147
This iWofly deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:59 pm
DEN
- IAD
1 stop9h 44m
Frontier
Deal found 6/16![Frontier logo]()
$153
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:59 pm
DEN
- IAD
1 stop9h 44m
Frontier
Deal found 6/16![Frontier logo]()
$154
This Super.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2611:59 pm
DEN
- IAD
1 stop9h 44m
Frontier
Deal found 6/16![Frontier logo]()
$155
This Booking.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3011:46 pm
DEN
- IAD
1 stop8h 36m
Frontier
Deal found 6/17![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:32 pm
DEN
- DCA
Nonstop3h 26m
Frontier
Deal found 6/17![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:59 pm
DEN
- IAD
2 stops15h 15m
Frontier
Deal found 6/17![Frontier logo]()
$157
This Cheapflightsfares deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:30 am
DEN
- DCA
Nonstop3h 21m
Frontier
Deal found 6/18![Frontier logo]()
$157
This Super.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:30 am
DEN
- IAD
1 stop11h 58m
Frontier
Deal found 6/20![Frontier logo]()
$158
This KAYAK deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:58 pm
DEN
- DCA
1 stop7h 01m
JetBlue
Deal found 6/17![JetBlue logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:40 am
DEN
- IAD
2 stops8h 56m
Frontier
Deal found 6/16![Frontier logo]()
$159
Find flight deals from Denver to District of Columbia
Keep the following information in mind while searching for Denver to District of Columbia flight deals. Data was last updated June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $279 (Frontier) |
One-way from | $145 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $398 |
Good round-trip deal | $379 or less |
Good one-way deal | $212 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to District of Columbia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
Use the filters below to find and compare flights from Denver to District of Columbia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Tue 8/4
2:20 pm-11:55 pm
1 stop7h 35m
Washington, D.C. Reagan-National
Tue 8/11
4:50 pm-7:50 pm
1 stop5h 00m
$388
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Sat 8/1
6:35 am-10:59 pm
1 stop14h 24m
Washington, D.C. Reagan-National
Tue 8/4
6:59 pm-11:34 pm
1 stop6h 35m
$423
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Mon 8/10
5:03 am-2:02 pm
1 stop6h 59m
Washington, D.C. Dulles Intl
Thu 8/13
7:57 am-12:30 pm
1 stop6h 33m
$424
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Fri 7/31
1:20 pm-11:05 pm
2 stops7h 45m
Washington, D.C. Reagan-National
Tue 8/4
9:35 am-3:00 pm
2 stops7h 25m
$446
Quickest round-trip
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Tue 8/4
11:59 pm-5:27 am
Nonstop3h 28m
Washington, D.C. Dulles Intl
Tue 8/11
12:50 pm-2:40 pm
Nonstop3h 50m
$469
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Thu 8/13
8:00 am-1:30 pm
Nonstop3h 30m
Washington, D.C. Dulles Intl
Thu 8/20
5:26 pm-7:30 pm
Nonstop4h 04m
$469
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Mon 9/7
6:00 am-11:24 am
Nonstop3h 24m
Washington, D.C. Dulles Intl
Fri 9/11
4:15 pm-6:15 pm
Nonstop4h 00m
$469
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Fri 9/4
3:40 pm-9:08 pm
Nonstop3h 28m
Washington, D.C. Dulles Intl
Tue 9/8
12:50 pm-2:40 pm
Nonstop3h 50m
$469
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Fri 7/24
6:00 pm-11:32 pm
Nonstop3h 32m
Washington, D.C. Dulles Intl
Mon 7/27
6:30 am-8:22 am
Nonstop3h 52m
$469
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Thu 9/24
11:00 am-7:40 pm
2 stops6h 40m
Washington, D.C. Reagan-National
Sun 9/27
7:35 pm-11:40 pm
1 stop6h 05m
$470
Showing 1-10 of 46 resultsSorted by cheapest first
Best time to book a flight from Denver to District of Columbia
Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Denver with our price prediction graph.
DEN-DCA
DEN-IAD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Denver to District of Columbia
DEN-USDC
DEN-DCA
DEN-IAD
What is the cheapest month to book a flight from Denver to District of Columbia?
Currently, January is the cheapest month in which you can book a flight from Denver to District of Columbia (average of $58). Flying from Denver to District of Columbia in February is currently the most expensive (average of $694). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DEN to DC?
Find hourly flight availability from Denver to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 21, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 33% on flights from Denver to District of Columbia by exploring options for tickets at noon.
Weekly flight availability from Denver to District of Columbia
Explore weekly flight availability from Denver to District of Columbia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 21, 2026.
The most flights from DEN to USDC are scheduled on a Sunday (25 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 on average).
How much does it cost to fly round-trip from Denver to District of Columbia?
How far ahead should I book a flight from Denver to District of Columbia?
Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to District of Columbia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Denver to District of Columbia?
Use this chart to determine the cheapest time to fly round-trip from Denver to District of Columbia. Price data was last updated on June 20, 2026.
Travelers seeking maximum savings on their Denver to District of Columbia flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing District of Columbia
Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated June 21, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Denver to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Denver to District of Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Find flights from Denver to District of Columbia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Denver and District of Columbia flights
Browse other Denver and District of Columbia flight options. Last updated on June 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Denver to District of Columbia
Discover the top 5 airlines that operate flights from Denver to District of Columbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$274 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$144 | Average$441 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$177 | Average$382 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$186 | Average$306 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$197 | Average$481 | FlexibilityNo cancel fee | On-time69% |