What airlines fly to Denver?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from District of Columbia according to our data. Frontier is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from District of Columbia to Denver Intl?

Southwest, Frontier, and United Airlines are the most popular carriers operating from District of Columbia to Denver Intl

How many flights depart from District of Columbia to Denver on average per week?

The number of flights available between District of Columbia and Denver is 188 per week as of October 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

How many flights depart from District of Columbia to Denver on average per day?

The number of flights available between District of Columbia and Denver is 26 per day as of October 2025. The most frequent departure time is 4:00PM, with 55% of daily flights leaving in the afternoon.

When did momondo last update prices for flights from District of Columbia to Denver Intl Airport?

Prices for flights from District of Columbia to Denver Intl Airport were last updated today.

How many operators does momondo search for flights from District of Columbia to Denver Intl Airport?

The number of operators available for flights from District of Columbia to Denver Intl Airport is 6 as of October 2025.

How old do you have to be to fly from District of Columbia to Denver Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from District of Columbia to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$76 Cheap Flights from District of Columbia to Denver in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 9:08 amDCA-DEN

4h 08mnonstop

5:38 am - 11:04 amDEN-DCA

3h 26mnonstop

$132Frontier

Find Deal

mar., oct. 21 - dom., nov. 2

6:00 pm - 8:12 pmDCA-DEN

4h 12mnonstop

6:40 am - 12:05 pmDEN-DCA

3h 25mnonstop

$133Frontier

Find Deal

jue., dic. 4 - lun., dic. 8

10:10 pm - 12:15 amIAD-DEN

4h 05mnonstop

11:59 pm - 5:16 amDEN-IAD

3h 17mnonstop

$141United Airlines

Find Deal

vie., nov. 7 - mar., nov. 11

10:10 pm - 12:15 amIAD-DEN

4h 05mnonstop

11:59 pm - 5:16 amDEN-IAD

3h 17mnonstop

$151United Airlines

Find Deal

mar., nov. 4 - mar., nov. 11

4:40 pm - 7:50 pmDCA-DEN

5h 10m1 stop

7:45 am - 2:20 pmDEN-DCA

4h 35m1 stop

$152Southwest

Find Deal

jue., dic. 4 - dom., dic. 7

4:40 pm - 7:50 pmDCA-DEN

5h 10m1 stop

7:40 am - 2:55 pmDEN-DCA

5h 15m1 stop

$156Southwest

Find Deal

mié., nov. 12 - dom., nov. 16

8:00 am - 6:03 pmDCA-DEN

12h 03m1 stop

4:38 pm - 9:59 pmDEN-DCA

3h 21mnonstop

$172Multiple Airlines

Find Deal

mar., dic. 9 - sáb., dic. 13

6:00 pm - 7:59 pmDCA-DEN

3h 59mnonstop

11:31 am - 4:00 pmDEN-DCA

26h 29m1 stop

$178Multiple Airlines

Find Deal

sáb., nov. 1 - sáb., nov. 8

2:06 pm - 7:01 pmIAD-DEN

6h 55m1 stop

11:59 pm - 10:20 amDEN-IAD

8h 21m1 stop

$187American Airlines

Find Deal

jue., dic. 4 - lun., dic. 8

3:25 pm - 8:08 pmDCA-DEN

6h 43m1 stop

7:00 am - 3:56 pmDEN-DCA

6h 56m1 stop

$187American Airlines

Find Deal

sáb., nov. 1 - mar., nov. 4

United Airlines flights from District of Columbia to Denver

Our best United Airlines deals on District of Columbia to Denver flight tickets

United Airlines

Nov 7

IAD10:10 pmWashington, D.C. Dulles Intl

4h 05m

DEN12:15 amDenver Intl

Nov 11

DEN11:59 pmDenver Intl

3h 17m

IAD5:16 amWashington, D.C. Dulles Intl

$141

Find similar

United Airlines

Nov 4

IAD10:10 pmWashington, D.C. Dulles Intl

4h 05m

DEN12:15 amDenver Intl

Nov 11

DEN11:59 pmDenver Intl

3h 17m

IAD5:16 amWashington, D.C. Dulles Intl

$151

Find similar

United Airlines

Nov 5

IAD8:25 amWashington, D.C. Dulles Intl

3h 59m

DEN10:24 amDenver Intl

Nov 9

DEN11:59 pmDenver Intl

3h 17m

IAD5:16 amWashington, D.C. Dulles Intl

$167

Find similar

Frontier flights from District of Columbia to Denver

Our best Frontier deals on District of Columbia to Denver flight tickets

Frontier

Oct 21

DCA7:00 amWashington, D.C. Reagan-National

4h 08m

DEN9:08 amDenver Intl

Nov 2

DEN5:38 amDenver Intl

3h 26m

DCA11:04 amWashington, D.C. Reagan-National

$132

Find similar

Frontier

Dec 4

DCA6:00 pmWashington, D.C. Reagan-National

4h 12m

DEN8:12 pmDenver Intl

Dec 8

DEN6:40 amDenver Intl

3h 25m

DCA12:05 pmWashington, D.C. Reagan-National

$133

Find similar

Frontier

Dec 11

DCA6:00 pmWashington, D.C. Reagan-National

4h 12m

DEN8:12 pmDenver Intl

Dec 15

DEN6:40 amDenver Intl

3h 25m

DCA12:05 pmWashington, D.C. Reagan-National

$134

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

mar. 10/21

7:00 am-9:08 am

Nonstop4h 08m

Denver Intl

dom. 11/2

5:38 am-11:04 am

Nonstop3h 26m

$132

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

jue. 12/4

6:00 pm-8:12 pm

Nonstop4h 12m

Denver Intl

lun. 12/8

6:40 am-12:05 pm

Nonstop3h 25m

$133

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

vie. 11/7

10:10 pm-12:15 am

Nonstop4h 05m

Denver Intl

mar. 11/11

11:59 pm-5:16 am

Nonstop3h 17m

$141

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

mar. 11/4

10:10 pm-12:15 am

Nonstop4h 05m

Denver Intl

mar. 11/11

11:59 pm-5:16 am

Nonstop3h 17m

$151

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

jue. 12/4

4:40 pm-7:50 pm

1 stop5h 10m

Denver Intl

dom. 12/7

7:45 am-2:20 pm

1 stop4h 35m

$152

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

mié. 11/12

4:40 pm-7:50 pm

1 stop5h 10m

Denver Intl

dom. 11/16

7:40 am-2:55 pm

1 stop5h 15m

$156

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

mar. 12/9

8:00 am-6:03 pm

1 stop12h 03m

Denver Intl

sáb. 12/13

4:38 pm-9:59 pm

Nonstop3h 21m

$172

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

sáb. 11/1

6:00 pm-7:59 pm

Nonstop3h 59m

Denver Intl

sáb. 11/8

11:31 am-4:00 pm

1 stop26h 29m

$178

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

jue. 12/4

2:06 pm-7:01 pm

1 stop6h 55m

Denver Intl

lun. 12/8

11:59 pm-10:20 am

1 stop8h 21m

$187

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

sáb. 11/1

3:25 pm-8:08 pm

1 stop6h 43m

Denver Intl

mar. 11/4

7:00 am-3:56 pm

1 stop6h 56m

$187

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How to get the cheapest flight ticket from District of Columbia to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from District of Columbia is in August. Flight prices, which tend to average around $242, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until January to fly from District of Columbia, when ticket prices are also cheap, with an average price of $250.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $302. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $373.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $260. Flights in the evening are often more expensive with an average ticket price of $373.

What is the cheapest District of Columbia to Denver Intl flight route?

Fly from Washington, D.C. Reagan-National to Denver Intl for the best District of Columbia - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $339 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from District of Columbia for as low as $275 on momondo.

What cabin class options are available on District of Columbia to Denver Intl flights?

There are 4 cabin classes available to choose from on District of Columbia to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on District of Columbia to Denver flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Denver.

Cheap District of Columbia to Denver flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Denver

Best Price Found	$147
Fastest flight time	3h 46m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from District of Columbia in the past 72 hours is $147. The best round-trip flight deal from District of Columbia to Denver found on momondo in the last 72 hours is $128.

The fastest flight from District of Columbia to Denver takes 3h 46m

Direct flights go from District of Columbia to Denver every day.

There is 1 airport near Denver: Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from District of Columbia to Denver Intl Airport?
Prices for flights from District of Columbia to Denver Intl Airport were last updated today.
How many operators does momondo search for flights from District of Columbia to Denver Intl Airport?
The number of operators available for flights from District of Columbia to Denver Intl Airport is 6 as of October 2025.
How old do you have to be to fly from District of Columbia to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from District of Columbia to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from District of Columbia to Denver?
momondo data reveals that the most frequently booked plane model on the route from District of Columbia to Denver is Boeing 737 MAX 8, representing 14.89% of all bookings. The subsequent popular models are Airbus A320neo at 12.68%, Boeing 737-800 Passenger/BBJ2 (winglets) at 11.97%, and Boeing 737-900 at 11.88%.

Best airlines flying from District of Columbia to Denver

Compare and see reviews for airlines that fly from District of Columbia to Denver with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $94	Free Cancellation	Rating 5.8 3,144 reviews	Search Frontier flights
JetBlue	PriceFrom $128	Free Cancellation	Rating 7.2 2,909 reviews	Search JetBlue flights
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 7,969 reviews	Search Delta flights
American Airlines	PriceFrom $166	Free Cancellation	Rating 7.2 11,042 reviews	Search American Airlines flights
Southwest	PriceFrom $178	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights
United Airlines	PriceFrom $207	Free Cancellation	Rating 7.4 8,966 reviews	Search United Airlines flights

Breckenridge

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Black Hawk

Aurora

Fort Collins

Keystone

Cripple Creek

Boulder

Manitou Springs

Longmont

Lakewood

Greeley

Thornton

Westminster

Winter Park

Copper Mountain

Frisco

Grand Lake

Silverthorne

Central City

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Denver?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to Denver. momondo saves you time and could save you money on your trip.

Can I find flights from District of Columbia to Denver with flexible booking policies on momondo?

Yes. All flights to Denver from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Denver?

momondo provides multiple filters to help you find the best flight to Denver from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from District of Columbia to Denver right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of District of Columbia to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from District of Columbia to Denver from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Denver departing on 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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United Airlines flights from District of Columbia to Denver

Our best United Airlines deals on District of Columbia to Denver flight tickets

Frontier flights from District of Columbia to Denver

Our best Frontier deals on District of Columbia to Denver flight tickets

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Use the filters below to find and compare flights from District of Columbia to Denver that are best for you.

See travel insights to Denver from

How to get the cheapest flight ticket from District of Columbia to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $302. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $373.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $260. Flights in the evening are often more expensive with an average ticket price of $373.

What is the cheapest District of Columbia to Denver Intl flight route?

Fly from Washington, D.C. Reagan-National to Denver Intl for the best District of Columbia - Denver Intl flight prices

How far in advance should I book a flight to Denver?

What cabin class options are available on District of Columbia to Denver Intl flights?

There are 4 cabin classes available to choose from on District of Columbia to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on District of Columbia to Denver flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Denver.

What is the cheapest airline that flies from District of Columbia to Denver Intl?

Southwest, Frontier, and United Airlines are the most popular carriers operating from District of Columbia to Denver Intl

What airlines fly to Denver?

How many flights depart from District of Columbia to Denver on average per day?

The number of flights available between District of Columbia and Denver is 26 per day as of October 2025. The most frequent departure time is 4:00PM, with 55% of daily flights leaving in the afternoon.

How many flights depart from District of Columbia to Denver on average per week?

The number of flights available between District of Columbia and Denver is 188 per week as of October 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

Cheap District of Columbia to Denver flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Denver

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

When did momondo last update prices for flights from District of Columbia to Denver Intl Airport?

How many operators does momondo search for flights from District of Columbia to Denver Intl Airport?

How old do you have to be to fly from District of Columbia to Denver Intl Airport?

What documentation or ID do you need to fly to Denver Intl Airport?

What is the most popular plane model from District of Columbia to Denver?

Best airlines flying from District of Columbia to Denver

Compare and see reviews for airlines that fly from District of Columbia to Denver with momondo

Traveling to a place near Denver?

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Denver?

Can I find flights from District of Columbia to Denver with flexible booking policies on momondo?

How can momondo help me find flights from District of Columbia to Denver?

I’m not ready to book a flight from District of Columbia to Denver right now. Can momondo alert me if prices change?

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Colorado