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$89+ Cheap flights from Washington, D.C. (WAS) to Colorado

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — DEN
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Colorado

Keep the following information in mind while searching for Washington, D.C. to Colorado flight deals. Data was last updated July 28, 2025.

Round-trip from

$169
(Gotogate)

One-way from

$89
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$263

Good round-trip deal

$128 or less

Good one-way deal

$121 or less
From Washington, D.C. (WAS) to Colorado
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One-way flight from Washington, D.C. (WAS) to Colorado
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Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Colorado.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Colorado.
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Find flight deals from Washington, D.C. to Colorado

Cheapest flights from Washington, D.C. to Colorado
Explore the most affordable flight options available from Washington, D.C. to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:00 pmDCA - DEN
Nonstop3h 58mFrontier
Sat 9/276:45 amDEN - DCA
Nonstop3h 25mFrontier
Deal found 7/28$169
This Priceline deal was found by Cheapflights users on 7/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:49 pmBWI - DEN
Nonstop4h 05mFrontier
Sun 11/1612:32 pmDEN - BWI
Nonstop3h 32mFrontier
Deal found 7/28$170
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:00 amIAD - DEN
Nonstop3h 40mSouthwest
Sat 9/279:40 amDEN - IAD
Nonstop3h 20mSouthwest
Deal found 7/28$177
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 9/245:08 pmDCA - DEN
1 stop7h 08mAmerican Airlines
Sat 9/277:09 amDEN - DCA
1 stop6h 45mAmerican Airlines
Deal found 7/27$195
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/202:21 pmIAD - DEN
1 stop7h 04mAmerican Airlines
Sat 9/277:20 amDEN - IAD
1 stop7h 27mAmerican Airlines
Deal found 7/26$197
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 9/256:30 amIAD - DEN
Nonstop3h 44mUnited Airlines
Mon 9/2911:59 pmDEN - IAD
Nonstop3h 23mUnited Airlines
Deal found 7/27$199
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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.
Sat 8/164:07 pmIAD - DEN
1 stop7h 10mFrontier
Sat 8/2311:15 amDEN - IAD
1 stop7h 33mFrontier
Deal found 7/27$205
This Southwest deal was found by Cheapflights users on 7/27. 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.
Thu 9/118:25 pmBWI - DEN
Nonstop3h 55mSouthwest
Fri 9/1911:40 pmDEN - BWI
Nonstop3h 20mSouthwest
Deal found 7/27$217
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/114:35 pmDCA - DEN
1 stop6h 00mSouthwest
Mon 9/157:45 amDEN - DCA
1 stop5h 25mSouthwest
Deal found 7/28$219
This CheapOair deal was found by Cheapflights users on 7/27. 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.
Fri 8/2212:29 pmBWI - DEN
1 stop22h 34mMultiple Airlines
Mon 8/2512:10 pmDEN - BWI
Nonstop3h 31mMultiple Airlines
Deal found 7/27$225
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/276:20 pmBWI - DEN
1 stop5h 56mAmerican Airlines
Sat 9/2711:59 pmDEN - BWI
1 stop7h 49mAmerican Airlines
Deal found 7/26$231
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:05 pmIAD - DEN
1 stop6h 03mDelta
Fri 9/2612:59 amDEN - IAD
1 stop8h 11mDelta
Deal found 7/28$237

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Colorado that are best for you.

Fly from

Washington, D.C.

Fly to

Colorado

Route

Depart

Return

Price

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Fri 9/5

6:27 pm-8:29 pm

Nonstop4h 02m

Denver Intl

Sun 9/7

12:16 pm-5:42 pm

Nonstop3h 26m

$169

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Fri 9/19

6:00 pm-7:58 pm

Nonstop3h 58m

Denver Intl

Sat 9/27

6:45 am-12:10 pm

Nonstop3h 25m

$169

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 9/20

7:00 am-8:40 am

Nonstop3h 40m

Denver Intl

Sat 9/27

9:40 am-3:00 pm

Nonstop3h 20m

$177

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 9/24

5:08 pm-10:16 pm

1 stop7h 08m

Denver Intl

Sat 9/27

7:09 am-3:54 pm

1 stop6h 45m

$195

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 9/20

2:21 pm-7:25 pm

1 stop7h 04m

Denver Intl

Sat 9/27

7:20 am-4:47 pm

1 stop7h 27m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Thu 9/25

6:30 am-8:14 am

Nonstop3h 44m

Denver Intl

Mon 9/29

11:59 pm-5:22 am

Nonstop3h 23m

$199

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 8/16

4:07 pm-9:17 pm

1 stop7h 10m

Denver Intl

Sat 8/23

11:15 am-8:48 pm

1 stop7h 33m

$205

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Thu 9/11

8:25 pm-10:20 pm

Nonstop3h 55m

Denver Intl

Fri 9/19

11:40 pm-5:00 am

Nonstop3h 20m

$217

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Thu 9/11

4:35 pm-8:35 pm

1 stop6h 00m

Denver Intl

Mon 9/15

7:45 am-3:10 pm

1 stop5h 25m

$219

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Fri 8/22

12:29 pm-9:03 am

1 stop22h 34m

Denver Intl

Mon 8/25

12:10 pm-5:41 pm

Nonstop3h 31m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Washington, D.C. 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 Washington, D.C. to Colorado

What is the cheapest month to book a flight from Washington, D.C. to Colorado?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Colorado (average of $197). Flying from Washington, D.C. to Colorado in March is currently the most expensive (average of $278). 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 WAS to CO?

Find hourly flight availability from Washington, D.C. to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

When flying from Washington, D.C. to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. to Colorado

Explore weekly flight availability from Washington, D.C. to Colorado. 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 July 28, 2025.

The most flights from WAS to USCO are scheduled on a Sunday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated July 28, 2025.
Read reviews from past customers who have flown Southwest, Delta, and Hawaiian Airlines from Washington, D.C. to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,975 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Hawaiian Airlines
7.8
Good
2,604 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,892 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Washington, D.C. to Colorado flight route?

    The Washington, D.C. to Colorado flight path was viewed by 118 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Washington, D.C. to Colorado one-way?

    $89 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $94 and $99, respectively.

  • What are the most popular routes from Washington, D.C. to Colorado?

    The most popular flight routes from Washington, D.C. to Colorado are Baltimore/Washington - Denver Intl, Washington, D.C. Dulles Intl - Denver Intl and Washington, D.C. Reagan-National - Denver Intl.

  • What are the most reliable airlines from Washington, D.C. to Colorado?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to Colorado consider choosing United Airlines (86%), Southwest (56%) or Frontier (31%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Washington, D.C. to Colorado?

    On average you can expect to pay $827 for a flight from Washington, D.C. to Colorado. The cheapest flight overall is $96 while the most popular route, (Baltimore/Washington - Denver Intl) is currently priced at $135.

  • Can I find deals for flights from Washington, D.C. to Colorado that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Colorado.

  • Can I find deals for business class flights from Washington, D.C. to Colorado?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Colorado 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 Washington, D.C. to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Colorado (average of $197). Flying from Washington, D.C. to Colorado in March is currently the most expensive (average of $278). 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 Washington, D.C. to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Washington, D.C. to Colorado

Discover the top 7 airlines that operate flights from Washington, D.C. to Colorado. 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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$89Average$235FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$128Average$321FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$155Average$275FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$166Average$466FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$190Average$410FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$193Average$564FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$327FlexibilityNo cancel feeOn-timeN/A

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