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District of Columbia

$95+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAD
Jun 3 — Jun 101
Wed 6/3
Wed 6/10
1 adult, Economy
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Cheap flight deals from Denver to District of Columbia

Cheapest flights from Denver to District of Columbia
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 May 4, 2026.

This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:30 am
DEN
-
IAD
1 stop7h 50m
Frontier
Sat 6/136:46 am
IAD
-
DEN
1 stop9h 13m
Frontier
Deal found 4/29$198
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:30 am
DEN
-
IAD
1 stop9h 01m
Frontier
Tue 6/168:57 pm
IAD
-
DEN
1 stop14h 06m
Frontier
Deal found 4/29$199
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:30 am
DEN
-
IAD
1 stop8h 57m
Frontier
Mon 5/187:27 pm
IAD
-
DEN
1 stop14h 57m
Frontier
Deal found 4/29$200
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:54 pm
DEN
-
IAD
1 stop8h 18m
Frontier
Wed 6/312:24 pm
IAD
-
DEN
2 stops12h 00m
Frontier
Deal found 4/29$202
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:54 pm
DEN
-
IAD
1 stop8h 18m
Frontier
Thu 6/48:47 pm
IAD
-
DEN
2 stops44h 53m
Frontier
Deal found 4/30$203
This Frontier deal was found by Cheapflights users on 5/3. 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 8/1111:25 am
DEN
-
DCA
Nonstop3h 34m
Frontier
Sat 8/156:00 pm
DCA
-
DEN
Nonstop4h 07m
Frontier
Deal found 5/3$203
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/99:58 am
DEN
-
IAD
1 stop11h 19m
Frontier
Fri 6/127:30 am
IAD
-
DEN
1 stop8h 29m
Frontier
Deal found 4/29$204
This CheapOair deal was found by Cheapflights users on 5/1. 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 5/1811:54 pm
DEN
-
IAD
1 stop8h 18m
Frontier
Sun 5/2411:07 am
IAD
-
DEN
1 stop13h 17m
Frontier
Deal found 5/1$205
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/2811:54 pm
DEN
-
IAD
1 stop8h 18m
Frontier
Wed 6/312:24 pm
IAD
-
DEN
2 stops12h 00m
Frontier
Deal found 5/2$207
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:22 am
DEN
-
IAD
1 stop5h 24m
Multiple Airlines
Tue 6/211:07 am
IAD
-
DEN
1 stop13h 17m
Multiple Airlines
Deal found 4/30$208
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:54 pm
DEN
-
IAD
1 stop8h 18m
Frontier
Mon 6/811:07 am
IAD
-
DEN
2 stops22h 54m
Frontier
Deal found 4/29$209
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:54 pm
DEN
-
IAD
1 stop8h 18m
Frontier
Mon 6/17:45 am
IAD
-
DEN
1 stop8h 19m
Frontier
Deal found 4/30$210

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 May 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$198
(Trip.com)

One-way from

$95
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$311

Good round-trip deal

$259 or less

Good one-way deal

$142 or less
Provider with most accurate pricing for Denver Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Washington, D.C. (WAS) flights.
Search Deals
From Denver Intl to District of Columbia
Search Deals
One-way flight from Denver Intl to District of Columbia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Denver Intl to District of Columbia.
Search Deals
Price to beat on a one-way flight from Denver Intl to District of Columbia.
Search Deals

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 May 4, 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

Price

Cheapest round-trip

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 5/19

6:10 pm-11:40 pm

Nonstop3h 30m

Washington, D.C. Dulles Intl

Tue 5/26

6:20 am-8:10 am

Nonstop3h 50m

$357

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 5/27

11:59 pm-5:27 am

Nonstop3h 28m

Washington, D.C. Dulles Intl

Thu 6/4

10:23 pm-12:30 am

Nonstop4h 07m

$367
Quickest round-trip

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 5/27

11:30 am-4:50 pm

Nonstop3h 20m

Washington, D.C. Dulles Intl

Mon 6/1

5:55 am-7:45 am

Nonstop3h 50m

$367

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Sat 5/23

5:35 pm-10:55 pm

Nonstop3h 20m

Washington, D.C. Dulles Intl

Mon 5/25

5:55 am-7:45 am

Nonstop3h 50m

$377

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 5/27

6:15 am-3:00 pm

1 stop6h 45m

Washington, D.C. Reagan-National

Thu 6/4

7:35 am-10:45 am

1 stop5h 10m

$382

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 5/27

6:15 am-3:00 pm

1 stop6h 45m

Washington, D.C. Reagan-National

Wed 6/3

9:05 am-3:10 pm

2 stops8h 05m

$382

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 6/29

11:37 pm-12:00 pm

1 stop10h 23m

Washington, D.C. Reagan-National

Wed 7/1

1:25 pm-10:42 pm

1 stop11h 17m

$405

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 7/1

6:13 am-11:41 am

Nonstop3h 28m

Washington, D.C. Dulles Intl

Thu 7/9

10:23 pm-12:30 am

Nonstop4h 07m

$408

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Sun 6/7

7:13 pm-12:45 am

Nonstop3h 32m

Washington, D.C. Dulles Intl

Wed 6/10

6:30 am-8:22 am

Nonstop3h 52m

$422

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 6/11

12:59 am-8:37 am

1 stop5h 38m

Washington, D.C. Reagan-National

Tue 6/16

6:00 am-9:53 am

1 stop5h 53m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/3

Showing 1-10 of 48 resultsSorted by cheapest first
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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.
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

How far ahead should I book a flight from Denver to District of Columbia?

Booking 28 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 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 $706). 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 May 4, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 28% on flights from Denver to District of Columbia by exploring options for tickets in the morning.

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 May 2, 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.

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 May 4, 2026.

The most flights from DEN to USDC are scheduled on a Sunday (28 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (22 on average).

How much does it cost to fly round-trip from Denver to District of Columbia?

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 May 4, 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.
Southwest
7.9
Good
4,307 reviews

Overall

7.9

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
7.9
Good
4,307 reviews
Southwest
7.9
Good
4,307 reviews

Overall

7.9

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,460 reviews
Southwest
7.9
Good
4,307 reviews

Overall

7.9

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,680 reviews
Southwest
7.9
Good
4,307 reviews

Overall

7.9

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,672 reviews
Southwest
7.9
Good
4,307 reviews

Overall

7.9

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,965 reviews
Southwest
7.9
Good
4,307 reviews

Overall

7.9

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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.

  • What airport do you fly from for flights from Denver to District of Columbia?

    For a flight from Denver to District of Columbia, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city.

  • How long is the flight from Denver to District of Columbia?

    There are many flights that can get you from Denver to District of Columbia in 3h 28m. Fly via Southwest, United Airlines, or JetBlue to get the fastest option. The distance from Denver to District of Columbia is about 1448 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Denver to District of Columbia one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from JetBlue and Southwest, as they are both options that can get you from Denver to District of Columbia for a low price.

  • What are the most reliable airlines from Denver to District of Columbia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to District of Columbia on time: Avianca (97%), Ethiopian Air (96%), United Airlines (91%).

  • What are the cheapest flights from Denver to District of Columbia?

    The cheapest flight price from Denver to District of Columbia is $138. On average you can expect to pay $867. The most popular route, (Denver Intl - Washington, D.C. Dulles Intl), can usually be booked for $221.

  • Can I find deals for flights from Denver to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Denver to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to District of Columbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to District of Columbia.

  • Can I find deals for business class flights from Denver to District of Columbia?

    Yes. Cheapflights offers flight deals from Denver to District of Columbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $706). 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.

See more FAQs

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Alternative routes for Denver to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
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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 May 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$249FlexibilityNo cancel feeOn-time62%
DeltaCheapest$118Average$350FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$165Average$426FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$361FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$188Average$276FlexibilityNo cancel feeOn-time71%

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