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Cheap flights from Colorado to Washington, D.C. from $71

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Washington, D.C. departing on 11/19. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:59 am - 2:29 pmDEN-IAD
11h 30m1 stop
Frontier Logo
4:00 pm - 8:43 amIAD-DEN
18h 43m1 stop
$130Frontier
Find Deal
mar., déc. 2 - lun., déc. 15
Frontier Logo
12:59 am - 8:20 pmDEN-IAD
17h 21m1 stop
Frontier Logo
5:58 pm - 1:45 pmIAD-DEN
21h 47m1 stop
$132Frontier
Find Deal
lun., nov. 10 - lun., nov. 17
Multiple Airlines Logo
8:45 am - 7:33 pmDEN-IAD
8h 48m1 stop
Multiple Airlines Logo
5:19 pm - 9:02 amIAD-DEN
17h 43m1 stop
$175Multiple Airlines
Find Deal
jeu., nov. 20 - ven., déc. 5
United Airlines Logo
8:05 am - 1:23 pmDEN-IAD
3h 18mnonstop
United Airlines Logo
5:25 pm - 7:27 pmIAD-DEN
4h 02mnonstop
$177United Airlines
Find Deal
sam., déc. 6 - sam., déc. 13
Multiple Airlines Logo
1:42 pm - 11:05 pmDEN-IAD
7h 23m1 stop
Multiple Airlines Logo
2:09 pm - 10:20 amIAD-DEN
46h 11m2 stops
$184Multiple Airlines
Find Deal
ven., déc. 12 - lun., janv. 5
American Airlines Logo
6:00 am - 4:14 pmDEN-IAD
8h 14m1 stop
American Airlines Logo
5:29 pm - 11:05 pmIAD-DEN
7h 36m1 stop
$191American Airlines
Find Deal
mer., déc. 3 - mer., déc. 3
United Airlines Logo
8:05 am - 1:23 pmDEN-IAD
3h 18mnonstop
United Airlines Logo
10:10 pm - 12:15 amIAD-DEN
4h 05mnonstop
$197United Airlines
Find Deal
mer., déc. 3 - dim., déc. 7
American Airlines Logo
7:55 am - 5:16 pmDEN-IAD
7h 21m1 stop
American Airlines Logo
11:34 am - 8:53 pmIAD-DEN
11h 19m2 stops
$202American Airlines
Find Deal
mer., janv. 21 - mar., janv. 27
Delta Logo
2:05 pm - 11:37 pmMTJ-IAD
7h 32m1 stop
Delta Logo
6:20 am - 1:08 pmIAD-MTJ
8h 48m1 stop
$274Delta
Find Deal
mer., janv. 7 - lun., janv. 12
Delta Logo
2:05 pm - 11:37 pmMTJ-IAD
7h 32m1 stop
Delta Logo
6:20 am - 1:08 pmIAD-MTJ
8h 48m1 stop
$304Delta
Find Deal
mer., janv. 7 - lun., janv. 12

Frontier flights from Colorado to Washington, D.C. Dulles Intl Airport

Our best Frontier deals on Colorado to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Dec 2
DEN12:59 amDenver Intl
11h 30m
1 stop
IAD2:29 pmWashington, D.C. Dulles Intl
Dec 15
IAD4:00 pmWashington, D.C. Dulles Intl
18h 43m
1 stop
DEN8:43 amDenver Intl
$130
Find similar
Frontier
Nov 10
DEN12:59 amDenver Intl
17h 21m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
Nov 17
IAD5:58 pmWashington, D.C. Dulles Intl
21h 47m
1 stop
DEN1:45 pmDenver Intl
$132
Find similar
Frontier
Dec 31
DEN10:00 amDenver Intl
23h 38m
2 stops
IAD11:38 amWashington, D.C. Dulles Intl
Jan 7
IAD5:37 pmWashington, D.C. Dulles Intl
20h 44m
1 stop
DEN12:21 pmDenver Intl
$133
Find similar

American Airlines flights from Colorado to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Colorado to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Dec 3
DEN6:00 amDenver Intl
8h 14m
1 stop
IAD4:14 pmWashington, D.C. Dulles Intl
Dec 3
IAD5:29 pmWashington, D.C. Dulles Intl
7h 36m
1 stop
DEN11:05 pmDenver Intl
$191
Find similar
American Airlines
Jan 21
DEN7:55 amDenver Intl
7h 21m
1 stop
IAD5:16 pmWashington, D.C. Dulles Intl
Jan 27
IAD11:34 amWashington, D.C. Dulles Intl
11h 19m
2 stops
DEN8:53 pmDenver Intl
$202
Find similar
American Airlines
Dec 6
DEN8:10 amDenver Intl
9h 21m
2 stops
IAD7:31 pmWashington, D.C. Dulles Intl
Dec 10
IAD2:16 pmWashington, D.C. Dulles Intl
10h 04m
2 stops
DEN10:20 pmDenver Intl
$207
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated octobre 31, 2025.
Use the filters below to find and compare flights from Colorado to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

mar. 12/2

12:59 am-2:29 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

lun. 12/15

4:00 pm-8:43 am

1 stop18h 43m

$130

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

lun. 11/10

12:59 am-8:20 pm

1 stop17h 21m

Washington, D.C. Dulles Intl

lun. 11/17

5:58 pm-1:45 pm

1 stop21h 47m

$132

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

jeu. 11/20

8:45 am-7:33 pm

1 stop8h 48m

Washington, D.C. Dulles Intl

ven. 12/5

5:19 pm-9:02 am

1 stop17h 43m

$175

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

sam. 12/6

8:05 am-1:23 pm

Nonstop3h 18m

Washington, D.C. Dulles Intl

sam. 12/13

5:25 pm-7:27 pm

Nonstop4h 02m

$177

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

ven. 12/12

1:42 pm-11:05 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

lun. 1/5

2:09 pm-10:20 am

2 stops46h 11m

$184

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

mer. 12/3

6:00 am-4:14 pm

1 stop8h 14m

Washington, D.C. Dulles Intl

mer. 12/3

5:29 pm-11:05 pm

1 stop7h 36m

$191

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

mer. 12/3

8:05 am-1:23 pm

Nonstop3h 18m

Washington, D.C. Dulles Intl

dim. 12/7

10:10 pm-12:15 am

Nonstop4h 05m

$197

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

mer. 1/21

7:55 am-5:16 pm

1 stop7h 21m

Washington, D.C. Dulles Intl

mar. 1/27

11:34 am-8:53 pm

2 stops11h 19m

$202

MontroseWashington, D.C.

MTJ - IAD

MTJIAD

Montrose County

mer. 1/7

2:05 pm-11:37 pm

1 stop7h 32m

Washington, D.C. Dulles Intl

lun. 1/12

6:20 am-1:08 pm

1 stop8h 48m

$274

MontroseWashington, D.C.

MTJ - IAD

MTJIAD

Montrose County

mer. 1/7

2:05 pm-11:37 pm

1 stop7h 32m

Washington, D.C. Dulles Intl

lun. 1/12

6:20 am-1:08 pm

1 stop8h 48m

$304

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Colorado to Washington, D.C. Dulles Intl Airport

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 Washington, D.C. Dulles Intl Airport?

In general, August is the cheapest month to fly from Colorado to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $286. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $308.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $454. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Colorado to Washington, D.C. Dulles Intl Airport for around $639.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Colorado in the morning is the least expensive time of day to depart. momondo users have found prices as low as $466 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $609 on average. Flights to Washington, D.C. Dulles Intl Airport from Colorado at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Colorado to Washington, D.C. Dulles Intl flight route?

Fly from Denver Intl to Washington, D.C. Dulles Intl for the best Colorado - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $334 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Colorado for as low as $296 on momondo.

What cabin class options are available on Colorado to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Colorado to Washington, D.C. Dulles 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 Colorado to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Colorado to Washington, D.C. Dulles Intl Airport.

Cheap Colorado to Washington, D.C. Dulles Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Washington, D.C. Dulles Intl Airport

Best Price Found

$148

Fastest flight time

3h 10m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Colorado in the past 72 hours is $148. The best round-trip flight deal from Colorado to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $356.
The fastest flight from Colorado to Washington, D.C. Dulles Intl Airport takes 3h 10m
Direct flights go from Colorado to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Colorado to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Colorado to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Colorado to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Colorado to Washington, D.C. Dulles Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles 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 Washington, D.C. Dulles 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 Colorado to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Colorado to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Colorado to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $116Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
SouthwestPriceFrom $177Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
United AirlinesPriceFrom $217Free CancellationRating
7.4
8,999 reviews
Search United Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Sterling

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Washington, D.C.?

Finding the right flight to Washington, D.C. from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Colorado to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Colorado with this policy.

How can momondo help me find flights from Colorado to Washington, D.C.?

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

I’m not ready to book a flight from Colorado to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Colorado and alert you when they change.

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