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$43+ Cheap flights from Washington to Denver (DEN)

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from Washington to Denver

Keep the following information in mind while searching for Washington to Denver flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$73
(Frontier)

One-way from

$43
(Frontier)

Popular in

December

Cheapest in

March

Average price

$207

Good round-trip deal

$194 or less

Good one-way deal

$132 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Denver Intl flights.
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From Washington to Denver Intl
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One-way flight from Washington to Denver Intl
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Highest demand for flights based on searches. 11% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Washington to Denver Intl.
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Price to beat on a one-way flight from Washington to Denver Intl.
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Find flight deals from Washington to Denver

Cheapest flights from Washington to Denver
Explore the most affordable flight options available from Washington to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Frontier deal was found by Cheapflights users on 2/21. 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.
Thu 5/226:20 amPDX - DEN
Nonstop2h 37mFrontier
Wed 5/2810:50 pmDEN - PDX
Nonstop2h 50mFrontier
Deal found 2/21$73
This Cheapflightsfares deal was found by Cheapflights users on 2/21. 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.
Mon 3/312:02 pmSEA - DEN
Nonstop2h 48mFrontier
Thu 4/39:46 amDEN - SEA
Nonstop3h 10mFrontier
Deal found 2/21$96
This Delta deal was found by Cheapflights users on 2/21. 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 3/267:55 pmSEA - DEN
Nonstop2h 53mDelta
Mon 3/316:10 amDEN - SEA
Nonstop3h 09mDelta
Deal found 2/21$117
This eDestinos deal was found by Cheapflights users on 2/22. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/89:59 amPDX - DEN
Nonstop2h 41mMultiple Airlines
Tue 4/158:23 amDEN - PDX
1 stop26h 09mMultiple Airlines
Deal found 2/22$119
This Southwest deal was found by Cheapflights users on 2/22. 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.
Wed 4/236:15 amSEA - DEN
2 stops8h 20mSouthwest
Mon 4/287:10 pmDEN - SEA
Nonstop3h 00mSouthwest
Deal found 2/22$132
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/305:30 amSEA - DEN
1 stop4h 51mMultiple Airlines
Tue 5/610:36 pmDEN - SEA
Nonstop3h 08mMultiple Airlines
Deal found 2/20$162
This Delta deal was found by Cheapflights users on 2/22. 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 3/196:00 amPSC - DEN
1 stop4h 17mDelta
Sun 3/236:10 amDEN - PSC
1 stop5h 42mDelta
Deal found 2/22$189
This Southwest deal was found by Cheapflights users on 2/21. 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 3/132:20 pmPDX - DEN
2 stops6h 50mSouthwest
Mon 3/178:50 amDEN - PDX
Nonstop2h 45mSouthwest
Deal found 2/21$192
This Delta deal was found by Cheapflights users on 2/20. 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.
Thu 5/15:15 amPDX - DEN
1 stop6h 41mDelta
Sun 5/46:30 amDEN - PDX
1 stop5h 09mDelta
Deal found 2/20$197
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Fri 4/111:45 pmPDX - DEN
1 stop7h 59mUnited Airlines
Sun 4/139:00 pmDEN - PDX
Nonstop2h 48mUnited Airlines
Deal found 2/21$204
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/305:30 amSEA - DEN
1 stop4h 51mAlaska Airlines
Wed 4/307:55 pmDEN - SEA
Nonstop3h 00mAlaska Airlines
Deal found 2/20$207
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1110:32 amPDX - DEN
1 stop4h 40mHawaiian Airlines
Wed 3/122:50 pmDEN - PDX
Nonstop2h 47mHawaiian Airlines
Deal found 2/20$207

Find flights from Washington to Denver within your budget

Customize your flight search to find flights from Washington to Denver 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 February 22, 2025.

Fly from

Washington

Fly to

Denver

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 5/22

6:20 am-9:57 am

Nonstop2h 37m

Denver Intl

Wed 5/28

10:50 pm-12:40 am

Nonstop2h 50m

$73

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 3/31

2:02 pm-5:50 pm

Nonstop2h 48m

Denver Intl

Thu 4/3

9:46 am-11:56 am

Nonstop3h 10m

$96

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 3/26

7:55 pm-11:48 pm

Nonstop2h 53m

Denver Intl

Mon 3/31

6:10 am-8:19 am

Nonstop3h 09m

$117

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 4/8

9:59 am-1:40 pm

Nonstop2h 41m

Denver Intl

Tue 4/15

8:23 am-9:32 am

1 stop26h 09m

$119

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 4/23

6:15 am-3:35 pm

2 stops8h 20m

Denver Intl

Mon 4/28

7:10 pm-9:10 pm

Nonstop3h 00m

$132

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 4/30

5:30 am-11:21 am

1 stop4h 51m

Denver Intl

Tue 5/6

10:36 pm-12:44 am

Nonstop3h 08m

$162

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Wed 3/19

6:00 am-11:17 am

1 stop4h 17m

Denver Intl

Sun 3/23

6:10 am-10:52 am

1 stop5h 42m

$189

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 3/13

2:20 pm-10:10 pm

2 stops6h 50m

Denver Intl

Mon 3/17

8:50 am-10:35 am

Nonstop2h 45m

$192

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 5/1

5:15 am-12:56 pm

1 stop6h 41m

Denver Intl

Sun 5/4

6:30 am-10:39 am

1 stop5h 09m

$197

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 4/11

4:18 pm-7:55 pm

Nonstop2h 37m

Denver Intl

Sun 4/13

8:00 am-9:47 am

Nonstop2h 47m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Washington 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.

Travel insights for flights from Washington to Denver

Get recent, data-driven insights about flights from Washington to Denver including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from State of Washington to Denver?

Currently, October is the cheapest month in which you can book a flight from State of Washington to Denver (average of $197). Flying from State of Washington to Denver 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 WA to DEN?

Find hourly flight availability from Washington to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

When flying from State of Washington to Denver, 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 State of Washington to Denver

Explore weekly flight availability from Washington to Denver. 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 February 22, 2025.

The most flights from USWA to DEN are scheduled on a Thursday (44 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated February 22, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Washington to Denver. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,396 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,396 reviews
Southwest
8.1
Very good
4,396 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,702 reviews
Southwest
8.1
Very good
4,396 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,396 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,314 reviews
Southwest
8.1
Very good
4,396 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,396 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Washington to Denver. 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 into for flights to Denver from Washington?

    Most people fly into Denver Intl (DEN) if they book a flight to Denver from Washington. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How popular is this State of Washington to Denver flight route?

    The Washington to Denver Intl flight path was viewed by 306 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 State of Washington to Denver one-way?

    $43 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 Southwest, with prices starting from $69 and $74, respectively.

  • What are the most popular routes from State of Washington to Denver?

    When deciding which route to take from State of Washington to Denver consider Seattle/Tacoma Intl - Denver Intl, Portland - Denver Intl or Spokane - Denver Intl as they are the most popular.

  • What are the most reliable airlines from State of Washington to Denver?

    Before booking your flight to Denver from State of Washington, check out the most reliable airlines to get you to your destination on time: Copa Airlines (93%), ANA (93%), Condor( 92%).

  • What are the cheapest flights from State of Washington to Denver?

    While on average a flight from State of Washington to Denver is generally $660, our data shows the cheapest flight currently is $70. When looking at the most popular route, (Seattle/Tacoma Intl - Denver Intl), you can expect to pay $59 for that flight.

  • Can I find deals for flights from Washington to Denver that include hotel bookings?

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

  • How can I find direct flights from Washington to Denver?

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

  • Can I find deals for business class flights from Washington to Denver?

    Yes. Cheapflights offers flight deals from Washington to Denver 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 State of Washington to Denver?

    Currently, October is the cheapest month in which you can book a flight from State of Washington to Denver (average of $197). Flying from State of Washington to Denver 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

Traveling to a place near Washington?

Book flights to Washington if you plan to visit one of these locations
Westminster
Black Hawk
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Alternative routes for Washington to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Washington to Denver

Discover the top 6 airlines that operate flights from Washington to Denver. 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$136FlexibilityNo cancel feeOn-time62%
DeltaCheapest$90Average$282FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$118Average$306FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$133Average$422FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$142Average$404FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$176Average$272FlexibilityNo cancel feeOn-time71%
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