$86+ Cheap flights from Colorado 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAD
Feb 28 — Mar 71
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Colorado to District of Columbia
Cheapest flights from Colorado to District of ColumbiaExplore the most affordable flight options available from Colorado to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
Explore the most affordable flight options available from Colorado to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
This Trip.com deal was found by Cheapflights users on 1/27. 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.
Mon 3/27:33 am
DEN
- DCA
Nonstop3h 27m
Frontier
Mon 3/26:00 pm
DCA
- DEN
Nonstop4h 16m
Frontier
Deal found 1/27![Frontier logo]()
$110
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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.
Sun 2/227:48 am
DEN
- DCA
Nonstop3h 27m
Frontier
Wed 2/258:00 am
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/27![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 1/27. 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.
Tue 3/107:35 am
DEN
- DCA
Nonstop3h 27m
Frontier
Mon 3/236:00 pm
DCA
- DEN
Nonstop4h 16m
Frontier
Deal found 1/27![Frontier logo]()
$112
This Super.com deal was found by Cheapflights users on 1/28. 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 2/187:48 am
DEN
- DCA
Nonstop3h 27m
Frontier
Fri 2/208:00 am
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/28![Frontier logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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.
Fri 2/134:38 pm
DEN
- DCA
Nonstop3h 21m
Frontier
Tue 2/172:00 pm
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/27![Frontier logo]()
$117
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:48 am
DEN
- DCA
Nonstop3h 27m
Frontier
Sun 2/222:00 pm
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/28![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 1/26. 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 2/257:48 am
DEN
- DCA
Nonstop3h 27m
Frontier
Sun 3/12:00 pm
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/26![Frontier logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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.
Sat 2/287:33 am
DEN
- DCA
Nonstop3h 27m
Frontier
Tue 3/38:00 am
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/28![Frontier logo]()
$122
This Frontier deal was found by Cheapflights users on 1/28. 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 2/287:33 am
DEN
- DCA
Nonstop3h 27m
Frontier
Wed 3/48:00 am
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/28![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 1/27. 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.
Tue 2/107:48 am
DEN
- DCA
Nonstop3h 27m
Frontier
Mon 3/98:00 am
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/27![Frontier logo]()
$126
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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.
Thu 2/1911:37 am
DEN
- DCA
Nonstop3h 22m
Frontier
Sat 2/218:00 am
DCA
- DEN
Nonstop4h 22m
Frontier
Deal found 1/27![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 1/27. 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.
Tue 3/316:40 am
DEN
- DCA
Nonstop3h 24m
Frontier
Sat 4/47:00 am
DCA
- DEN
Nonstop4h 07m
Frontier
Deal found 1/27![Frontier logo]()
$128
Find flight deals from Colorado to District of Columbia
Keep the following information in mind while searching for Colorado to District of Columbia flight deals. Data was last updated January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $110 (Trip.com) |
One-way from | $86 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $230 |
Good round-trip deal | $151 or less |
Good one-way deal | $122 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado 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 January 29, 2026.
Use the filters below to find and compare flights from Colorado to District of Columbia that are best for you.
Fly from
Colorado
Fly to
District of Columbia
Route
Depart
Return
Price
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Fri 3/6
6:10 am-11:30 am
Nonstop3h 20m
Washington, D.C. Dulles Intl
Sun 3/8
7:59 pm-10:06 pm
Nonstop4h 07m
$217
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Fri 2/27
9:30 am-2:45 pm
Nonstop3h 15m
Washington, D.C. Dulles Intl
Sun 3/1
5:10 am-7:10 am
Nonstop4h 00m
$217
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Sat 2/28
6:00 am-4:27 pm
1 stop8h 27m
Washington, D.C. Reagan-National
Tue 3/3
7:30 pm-12:23 am
1 stop6h 53m
$217
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Mon 4/27
11:08 pm-7:59 am
1 stop6h 51m
Washington, D.C. Reagan-National
Sun 5/3
7:00 am-3:30 pm
1 stop10h 30m
$219
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Thu 2/26
11:15 pm-9:07 am
1 stop7h 52m
Washington, D.C. Reagan-National
Tue 3/3
2:05 pm-10:18 pm
1 stop10h 13m
$219
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Tue 3/31
11:25 pm-11:00 am
1 stop9h 35m
Washington, D.C. Reagan-National
Tue 4/7
3:59 pm-10:17 pm
1 stop8h 18m
$219
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Wed 3/4
6:00 am-4:50 pm
1 stop8h 50m
Washington, D.C. Dulles Intl
Sat 3/7
6:05 pm-8:10 pm
Nonstop4h 05m
$227
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Tue 2/24
12:59 am-9:10 am
1 stop6h 11m
Washington, D.C. Reagan-National
Wed 3/4
7:30 pm-12:23 am
1 stop6h 53m
$227
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Wed 2/4
7:35 am-1:02 pm
Nonstop3h 27m
Washington, D.C. Reagan-National
Thu 2/5
6:00 pm-8:16 pm
Nonstop4h 16m
$234
HaydenWashington, D.C.
HDN - DCA
HDNDCA
Hayden Yampa Valley
Wed 2/18
1:23 pm-11:00 pm
1 stop7h 37m
Washington, D.C. Reagan-National
Sun 2/22
6:30 am-12:33 pm
1 stop8h 03m
$235
Showing 1-10 of 60 results
Best time to book a flight from Colorado to District of Columbia
Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Colorado with our price prediction graph.
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 Colorado to District of Columbia
What is the cheapest month to book a flight from Colorado to District of Columbia?
Currently, February is the cheapest month in which you can book a flight from Colorado to District of Columbia (average of $76). Flying from Colorado to District of Columbia in May is currently the most expensive (average of $135). 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 CO to DC?
Find hourly flight availability from Colorado 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 January 29, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 21% on flights from Colorado to District of Columbia by exploring options for tickets in the morning.
What is the cheapest day to fly from Colorado to District of Columbia?
Use this chart to determine the cheapest time to fly round-trip from Colorado to District of Columbia. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their Colorado to District of Columbia flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Colorado to District of Columbia
Explore weekly flight availability from Colorado 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 January 29, 2026.
The most flights from USCO to USDC are scheduled on a Thursday (22 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).
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 January 29, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Colorado to District of Columbia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Colorado 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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Alternative routes for Colorado to District of Columbia
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Colorado to District of Columbia
Discover the top 5 airlines that operate flights from Colorado 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 January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$235 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$311 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$168 | Average$495 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$177 | Average$376 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$196 | Average$412 | FlexibilityNo cancel fee | On-time71% |