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Cheap flights from Washington, D.C. Dulles Intl Airport to Colorado from $67

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Colorado departing on 1/26. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Colorado

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:08 pm - 12:19 pm
IAD
-
DEN
16h 11m1 stop
Frontier Logo
7:59 pm - 9:55 am
DEN
-
IAD
11h 56m1 stop
$142Frontier
Mon, Jan 19 - Sat, Jan 24
Frontier Logo
10:29 am - 9:33 pm
IAD
-
DEN
13h 04m1 stop
Frontier Logo
6:00 am - 5:57 pm
DEN
-
IAD
9h 57m1 stop
$143Frontier
Sat, Feb 21 - Thu, Feb 26
Delta Logo
6:20 am - 12:41 pm
IAD
-
HDN
8h 21m1 stop
Delta Logo
3:40 pm - 11:57 pm
HDN
-
IAD
6h 17m1 stop
$237Delta
Sat, Jan 10 - Wed, Jan 14
Delta Logo
6:00 am - 2:43 pm
IAD
-
HDN
10h 43m2 stops
Delta Logo
3:40 pm - 11:57 pm
HDN
-
IAD
6h 17m1 stop
$242Delta
Sat, Jan 10 - Wed, Jan 14
American Airlines Logo
6:00 am - 12:29 pm
IAD
-
HDN
8h 29m1 stop
American Airlines Logo
1:19 pm - 9:17 pm
HDN
-
IAD
5h 58m1 stop
$247American Airlines
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
10:02 am - 2:46 pm
IAD
-
GJT
6h 44m1 stop
United Airlines Logo
3:21 pm - 11:22 pm
GJT
-
IAD
6h 01m1 stop
$249United Airlines
Tue, Jan 20 - Tue, Jan 27
American Airlines Logo
6:00 am - 2:05 pm
IAD
-
MTJ
10h 05m1 stop
American Airlines Logo
12:44 pm - 11:42 pm
MTJ
-
IAD
8h 58m2 stops
$254American Airlines
Sun, Jan 18 - Sat, Jan 24
United Airlines Logo
4:11 pm - 10:06 pm
IAD
-
COS
7h 55m1 stop
United Airlines Logo
12:09 pm - 8:49 pm
COS
-
IAD
6h 40m1 stop
$295United Airlines
Sat, Jan 17 - Tue, Jan 20
Southwest Logo
5:30 pm - 9:35 pm
IAD
-
COS
6h 05m1 stop
Southwest Logo
6:40 am - 3:50 pm
COS
-
IAD
7h 10m1 stop
$351Southwest
Wed, Jan 21 - Wed, Jan 28
Southwest Logo
9:05 am - 3:55 pm
IAD
-
COS
8h 50m1 stop
Southwest Logo
12:05 pm - 9:55 pm
COS
-
IAD
7h 50m1 stop
$377Southwest
Thu, Jan 22 - Thu, Jan 29

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

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Colorado flight tickets
Frontier
Jan 19
IAD10:08 pmWashington, D.C. Dulles Intl
16h 11m
1 stop
DEN12:19 pmDenver Intl
Jan 24
DEN7:59 pmDenver Intl
11h 56m
1 stop
IAD9:55 amWashington, D.C. Dulles Intl
$142
Find similar
Frontier
Feb 21
IAD10:29 amWashington, D.C. Dulles Intl
13h 04m
1 stop
DEN9:33 pmDenver Intl
Feb 26
DEN6:00 amDenver Intl
9h 57m
1 stop
IAD5:57 pmWashington, D.C. Dulles Intl
$143
Find similar
Frontier
Jan 19
IAD10:08 pmWashington, D.C. Dulles Intl
16h 11m
1 stop
DEN12:19 pmDenver Intl
Jan 25
DEN6:30 amDenver Intl
25h 25m
1 stop
IAD9:55 amWashington, D.C. Dulles Intl
$146
Find similar

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Colorado flight tickets
United Airlines
Feb 21
IAD7:42 pmWashington, D.C. Dulles Intl
4h 05m
DEN9:47 pmDenver Intl
Feb 21
DEN11:59 pmDenver Intl
3h 19m
IAD5:18 amWashington, D.C. Dulles Intl
$172
Find similar
United Airlines
Jan 31
IAD10:32 pmWashington, D.C. Dulles Intl
3h 58m
DEN12:30 amDenver Intl
Feb 4
DEN9:50 amDenver Intl
3h 22m
IAD3:12 pmWashington, D.C. Dulles Intl
$177
Find similar
United Airlines
Jan 21
IAD8:15 amWashington, D.C. Dulles Intl
4h 12m
DEN10:27 amDenver Intl
Jan 25
DEN7:50 amDenver Intl
3h 27m
IAD1:17 pmWashington, D.C. Dulles Intl
$197
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Colorado 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 December 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Mon 1/19

10:08 pm-12:19 pm

1 stop16h 11m

Denver Intl

Sat 1/24

7:59 pm-9:55 am

1 stop11h 56m

$142

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 2/21

10:29 am-9:33 pm

1 stop13h 04m

Denver Intl

Thu 2/26

6:00 am-5:57 pm

1 stop9h 57m

$143

Washington, D.C.Hayden

IAD - HDN

IADHDN

Washington, D.C. Dulles Intl

Sat 1/10

6:20 am-12:41 pm

1 stop8h 21m

Hayden Yampa Valley

Wed 1/14

3:40 pm-11:57 pm

1 stop6h 17m

$237

Washington, D.C.Hayden

IAD - HDN

IADHDN

Washington, D.C. Dulles Intl

Sat 1/10

6:00 am-2:43 pm

2 stops10h 43m

Hayden Yampa Valley

Wed 1/14

3:40 pm-11:57 pm

1 stop6h 17m

$242

Washington, D.C.Hayden

IAD - HDN

IADHDN

Washington, D.C. Dulles Intl

Sat 1/10

6:00 am-12:29 pm

1 stop8h 29m

Hayden Yampa Valley

Wed 1/14

1:19 pm-9:17 pm

1 stop5h 58m

$247

Washington, D.C.Grand Junction

IAD - GJT

IADGJT

Washington, D.C. Dulles Intl

Tue 1/20

10:02 am-2:46 pm

1 stop6h 44m

Grand Junction Regnl

Tue 1/27

3:21 pm-11:22 pm

1 stop6h 01m

$249

Washington, D.C.Montrose

IAD - MTJ

IADMTJ

Washington, D.C. Dulles Intl

Sun 1/18

6:00 am-2:05 pm

1 stop10h 05m

Montrose County

Sat 1/24

12:44 pm-11:42 pm

2 stops8h 58m

$254

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Sat 1/17

4:11 pm-10:06 pm

1 stop7h 55m

Colorado Springs

Tue 1/20

12:09 pm-8:49 pm

1 stop6h 40m

$295

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Wed 1/21

5:30 pm-9:35 pm

1 stop6h 05m

Colorado Springs

Wed 1/28

6:40 am-3:50 pm

1 stop7h 10m

$351

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Thu 1/22

9:05 am-3:55 pm

1 stop8h 50m

Colorado Springs

Thu 1/29

12:05 pm-9:55 pm

1 stop7h 50m

$377

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 Colorado from

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

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 Colorado?

The month of September is, on average, the cheapest month to fly to Colorado from Washington, D.C. Dulles Intl Airport, with most prices found around $288. The month of January is another great option to travel to Colorado, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $317.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Colorado is on a Wednesday when prices can be found for as low as $395. On the other hand, Sunday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $501.

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $367. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $475 per ticket.

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

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

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

You are more likely to see cheaper flights to Colorado from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $344 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Washington, D.C. Dulles Intl Airport for as low as $276 on momondo.

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

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

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Colorado flight.

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

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

Best Price Found

$203

Fastest flight time

3h 46m

Direct flights

Every day

Airports in Colorado

87 airports
The best one-way flight to Colorado from Washington, D.C. Dulles Intl Airport in the past 72 hours is $203. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Colorado found on momondo in the last 72 hours is $320.
The fastest flight from Washington, D.C. Dulles Intl Airport to Colorado takes 3h 46m
Direct flights go from Washington, D.C. Dulles Intl Airport to Colorado every day.
There are 87 airports in Colorado. From Washington, D.C. Dulles Intl Airport there are direct flights to Denver Intl (DEN).
Search flight deals

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Colorado are refreshed on a daily basis.

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

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

    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 Washington, D.C. Dulles Intl Airport to Colorado.

  • What documentation or ID do you need to fly to Colorado?

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Colorado with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $90Free CancellationRating
5.8
3,075 reviews
Search Frontier flights
American AirlinesPriceFrom $160Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,014 reviews
Search Delta flights

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Colorado flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Colorado that suits you.

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

momondo does allow users to show only those flights to Colorado from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Colorado.

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

If you are not ready to book a flight from Washington, D.C. to Colorado now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Colorado and let you know when they change.

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