Ethiopian Airlines offers 32-inch pitch in Economy Class, providing better-than-average comfort.
Enjoy Ethiopian national dishes like doro wot on flights, offering a cultural culinary experience.
$97+ Cheap flights from Denver (DEN) to Washington, D.C. (WAS)
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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
May 6 — May 131
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Denver to Washington, D.C. with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Denver Intl to Washington, D.C. are usually found in September or February, booked 77 days in advance, depart on a Wednesday or Friday and return on a Wednesday
Cheap flight deals from Denver to Washington, D.C.
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2025.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $153 (Mytrip) |
One-way from | $97 (Cheapflightsfares) |
Popular in | December |
Cheapest in | September |
Average price | $253 |
Good round-trip deal | $221 or less |
Good one-way deal | $129 or less |
Find flight deals from Denver to Washington, D.C.
Cheapest flights from Denver to Washington, D.C.Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.
Explore the most affordable flight options available from Denver to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.
This Frontier deal was found by Cheapflights users on 4/28. 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.
Wed 6/114:28 pmDEN - DCA
Nonstop3h 31mFrontier
Sun 6/157:00 amDCA - DEN
Nonstop4h 02mFrontier
Deal found 4/28![Frontier logo]()
$153
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 5/2912:59 amDEN - BWI
1 stop6h 54mFrontier
Fri 5/305:23 pmBWI - DEN
Nonstop4h 06mFrontier
Deal found 4/30![Frontier logo]()
$177
This Flightnetwork deal was found by Cheapflights users on 4/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:13 pmDEN - BWI
1 stop15h 10mMultiple Airlines
Fri 6/205:20 pmBWI - DEN
Nonstop4h 14mMultiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$187
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/116:00 amDEN - IAD
Nonstop3h 26mUnited Airlines
Sat 6/1410:19 pmIAD - DEN
Nonstop3h 53mUnited Airlines
Deal found 4/29![United Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 4/29. 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 7/45:55 amDEN - BWI
1 stop5h 10mSouthwest
Wed 7/98:15 pmBWI - DEN
Nonstop4h 00mSouthwest
Deal found 4/29![Southwest logo]()
$217
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Mon 6/237:01 pmDEN - BWI
1 stop14h 22mSun Country Air
Sat 6/2812:25 pmBWI - DEN
1 stop5h 42mSun Country Air
Deal found 4/29![Sun Country Air logo]()
$221
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1011:59 pmDEN - DCA
1 stop7h 30mAmerican Airlines
Wed 6/1112:31 pmDCA - DEN
1 stop6h 13mAmerican Airlines
Deal found 4/29![American Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 4/29. 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 5/313:35 pmDEN - IAD
1 stop6h 18mDelta
Tue 6/33:37 pmIAD - DEN
1 stop6h 42mDelta
Deal found 4/29![Delta logo]()
$237
This Delta deal was found by Cheapflights users on 4/29. 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 5/3012:55 amDEN - DCA
1 stop5h 40mDelta
Tue 6/312:26 pmDCA - DEN
1 stop7h 04mDelta
Deal found 4/29![Delta logo]()
$237
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/306:15 amDEN - BWI
1 stop8h 22mAmerican Airlines
Mon 6/26:30 amBWI - DEN
1 stop9h 02mAmerican Airlines
Deal found 4/30![American Airlines logo]()
$237
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/295:50 pmDEN - IAD
1 stop18h 33mMultiple Airlines
Mon 6/212:43 pmIAD - DEN
1 stop6h 44mMultiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$240
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3112:19 pmDEN - IAD
2 stops9h 43mAmerican Airlines
Tue 6/36:17 amIAD - DEN
1 stop9h 36mAmerican Airlines
Deal found 4/30![American Airlines logo]()
$242
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Washington, D.C. 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 May 1, 2025.
Use the filters below to find and compare flights from Denver to Washington, D.C. that are best for you.
Fly from
Denver
Fly to
Washington, D.C.
Route
Depart
Return
Price
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Wed 6/11
4:28 pm-9:59 pm
Nonstop3h 31m
Washington, D.C. Reagan-National
Sun 6/15
7:00 am-9:02 am
Nonstop4h 02m
$153
DenverBaltimore
DEN - BWI
DENBWI
Denver Intl
Thu 5/29
12:59 am-9:53 am
1 stop6h 54m
Baltimore/Washington
Fri 5/30
5:23 pm-7:29 pm
Nonstop4h 06m
$177
DenverBaltimore
DEN - BWI
DENBWI
Denver Intl
Fri 6/13
6:13 pm-11:23 am
1 stop15h 10m
Baltimore/Washington
Fri 6/20
5:20 pm-7:34 pm
Nonstop4h 14m
$187
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Wed 6/11
6:00 am-11:26 am
Nonstop3h 26m
Washington, D.C. Dulles Intl
Sat 6/14
10:19 pm-12:12 am
Nonstop3h 53m
$217
DenverBaltimore
DEN - BWI
DENBWI
Denver Intl
Fri 7/4
5:55 am-1:05 pm
1 stop5h 10m
Baltimore/Washington
Wed 7/9
8:15 pm-10:15 pm
Nonstop4h 00m
$217
DenverBaltimore
DEN - BWI
DENBWI
Denver Intl
Mon 6/23
7:01 pm-11:23 am
1 stop14h 22m
Baltimore/Washington
Sat 6/28
12:25 pm-4:07 pm
1 stop5h 42m
$221
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Tue 6/10
11:59 pm-9:29 am
1 stop7h 30m
Washington, D.C. Reagan-National
Wed 6/11
12:31 pm-4:44 pm
1 stop6h 13m
$231
DenverWashington, D.C.
DEN - IAD
DENIAD
Denver Intl
Sat 5/31
3:35 pm-11:53 pm
1 stop6h 18m
Washington, D.C. Dulles Intl
Tue 6/3
3:37 pm-8:19 pm
1 stop6h 42m
$237
DenverWashington, D.C.
DEN - DCA
DENDCA
Denver Intl
Fri 5/30
12:55 am-8:35 am
1 stop5h 40m
Washington, D.C. Reagan-National
Tue 6/3
12:26 pm-5:30 pm
1 stop7h 04m
$237
DenverBaltimore
DEN - BWI
DENBWI
Denver Intl
Fri 5/30
6:15 am-4:37 pm
1 stop8h 22m
Baltimore/Washington
Mon 6/2
6:30 am-1:32 pm
1 stop9h 02m
$237
Showing 1-10 of 49 results
Compare providers for flights from Denver to Washington, D.C.
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Washington, D.C. in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Denver-Washington, D.C. flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Denver-Washington, D.C. flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Denver-Washington, D.C. flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Washington, D.C. flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
The best insider tips for Denver to Washington, D.C. flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Washington, D.C. trip
Airlines
![Ethiopian Air]()
Ethiopian Air
![Frontier]()
Frontier
Frontier offers extra comfort seats with 32” separation for a fee, enhancing travel comfort.
Early morning flights have a better chance of taking off and arriving on time.
Airports
Our travel experts
Best time to book a flight from Denver to Washington, D.C.
Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Denver 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 Denver to Washington, D.C.
How far ahead should I book a flight from Denver to Washington, D.C.?
Use this chart to determine the optimal time to book a round-trip flight from Denver to Washington, D.C.. Price data was last updated on April 25, 2025.
To ensure you get the cheapest price possible for a flight from Denver to Washington, D.C., you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Denver to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Denver to Washington, D.C. (average of $309). Flying from Denver to Washington, D.C. in June is currently the most expensive (average of $373). 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 WAS?
Find hourly flight availability from Denver to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.
When flying from Denver to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 52% versus a flight in the evening.
What is the cheapest day to fly from Denver to Washington, D.C.?
Use this chart to determine the cheapest time to fly round-trip from Denver to Washington, D.C.. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Denver to Washington, D.C. flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Denver to Washington, D.C.
Explore weekly flight availability from Denver to Washington, D.C.. 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 May 1, 2025.
The most flights from DEN to WAS are scheduled on a Wednesday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
Rainfall in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.
Temperature in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing Washington, D.C.
Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated May 1, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Denver to Washington, D.C. have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Overall
8.0
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Overall
8.0
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Overall
8.0
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Overall
8.0
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Overall
8.0
Comfort
7.9
Boarding
8.2
Food
7.1
Crew
8.5
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Denver to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsAlexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Denver to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Denver to Washington, D.C.
Discover the top 5 airlines that operate flights from Denver to Washington, D.C.. 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 May 1, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$85 | Average$221 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$144 | Average$311 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$166 | Average$309 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$172 | Average$393 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$218 | Average$353 | FlexibilityNo cancel fee | On-time63% |