HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$31+ Cheap flights from Colorado to Washington

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
Aug 31 — Sep 71
Sun 8/31
Sun 9/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Washington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado to Washington

Keep the following information in mind while searching for Colorado to Washington flight deals. Data was last updated August 26, 2025.

Round-trip from

$49
(Cheapflightsfares)

One-way from

$31
(FlightHub)

Popular in

June

Cheapest in

October

Average price

$211

Good round-trip deal

$152 or less

Good one-way deal

$95 or less
From Colorado to Washington
Search Deals
One-way flight from Colorado to Washington
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Colorado to Washington.
Search Deals
Price to beat on a one-way flight from Colorado to Washington.
Search Deals

Find flight deals from Colorado to Washington

Cheapest flights from Colorado to Washington
Explore the most affordable flight options available from Colorado to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/24. 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 10/39:50 amDEN - PAE
Nonstop3h 00mFrontier
Fri 10/1012:53 pmPAE - DEN
Nonstop2h 46mFrontier
Deal found 8/24$49
This Priceline deal was found by Cheapflights users on 8/24. 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 10/39:50 amDEN - PAE
Nonstop3h 00mFrontier
Fri 10/312:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/24$66
This Cheapflightsfares deal was found by Cheapflights users on 8/23. 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 9/199:50 amDEN - PAE
Nonstop3h 00mFrontier
Mon 9/2212:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/23$70
This Cheapflightsfares deal was found by Cheapflights users on 8/24. 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 9/89:45 amDEN - PAE
Nonstop3h 00mFrontier
Fri 9/1212:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/24$86
This CheapOair deal was found by Cheapflights users on 8/25. 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 9/59:45 amDEN - PAE
Nonstop3h 00mFrontier
Mon 9/812:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/25$87
This Cheapflightsfares deal was found by Cheapflights users on 8/24. 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 9/129:45 amDEN - PAE
Nonstop3h 00mFrontier
Mon 9/1512:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/24$90
This CheapOair deal was found by Cheapflights users on 8/25. 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 9/129:45 amDEN - PAE
Nonstop3h 00mFrontier
Mon 9/2912:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/25$92
This Frontier deal was found by Cheapflights users on 8/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/119:38 amDEN - GEG
Nonstop2h 20mFrontier
Thu 9/1811:53 amGEG - DEN
Nonstop2h 19mFrontier
Deal found 8/26$93
This Frontier deal was found by Cheapflights users on 8/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:48 amDEN - GEG
Nonstop2h 20mFrontier
Sun 11/912:03 pmGEG - DEN
Nonstop2h 16mFrontier
Deal found 8/26$95
This CheapOair deal was found by Cheapflights users on 8/24. 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.
Wed 9/1010:29 pmDEN - PAE
1 stop20h 22mFrontier
Fri 9/1212:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/24$97
This Cheapflightsfares deal was found by Cheapflights users on 8/24. 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 10/39:50 amDEN - PAE
Nonstop3h 00mFrontier
Mon 10/612:56 pmPAE - DEN
Nonstop2h 48mFrontier
Deal found 8/24$98
This Priceline deal was found by Cheapflights users on 8/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:58 amDEN - PDX
Nonstop2h 50mFrontier
Sat 10/1112:43 pmPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/26$99

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Washington 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 August 26, 2025.
Use the filters below to find and compare flights from Colorado to Washington that are best for you.

Fly from

Colorado

Fly to

Washington

Route

Depart

Return

Price

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Fri 10/3

9:50 am-11:50 am

Nonstop3h 00m

Everett Paine Field

Fri 10/10

12:53 pm-4:39 pm

Nonstop2h 46m

$49

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Fri 10/3

9:50 am-11:50 am

Nonstop3h 00m

Everett Paine Field

Fri 10/3

12:56 pm-4:44 pm

Nonstop2h 48m

$66

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Fri 9/19

9:50 am-11:50 am

Nonstop3h 00m

Everett Paine Field

Mon 9/22

12:56 pm-4:44 pm

Nonstop2h 48m

$70

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Fri 9/5

9:45 am-11:45 am

Nonstop3h 00m

Everett Paine Field

Mon 9/8

12:56 pm-4:44 pm

Nonstop2h 48m

$86

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Mon 9/8

9:45 am-11:45 am

Nonstop3h 00m

Everett Paine Field

Mon 9/15

12:56 pm-4:44 pm

Nonstop2h 48m

$86

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Mon 9/8

9:45 am-11:45 am

Nonstop3h 00m

Everett Paine Field

Fri 9/12

12:56 pm-4:44 pm

Nonstop2h 48m

$86

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Fri 9/12

9:45 am-11:45 am

Nonstop3h 00m

Everett Paine Field

Mon 9/15

12:56 pm-4:44 pm

Nonstop2h 48m

$90

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Mon 9/15

9:50 am-11:50 am

Nonstop3h 00m

Everett Paine Field

Mon 9/22

12:56 pm-4:44 pm

Nonstop2h 48m

$90

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Mon 9/22

9:50 am-11:50 am

Nonstop3h 00m

Everett Paine Field

Mon 9/29

12:56 pm-4:44 pm

Nonstop2h 48m

$90

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Thu 9/11

9:38 am-10:58 am

Nonstop2h 20m

Spokane

Thu 9/18

11:53 am-3:12 pm

Nonstop2h 19m

$93

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/24

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Colorado to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Colorado to State of Washington (average of $238). Flying from Colorado to State of Washington in June is currently the most expensive (average of $388). 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 CO to WA?

Find hourly flight availability from Colorado to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 26, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to State of Washington as you normally would.

Weekly flight availability from Colorado to State of Washington

Explore weekly flight availability from Colorado to Washington. 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 August 26, 2025.

The most flights from USCO to USWA are scheduled on a Tuesday (47 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (25 on average).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated August 26, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Colorado to Washington to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,943 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,200 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Colorado to Washington. 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 Colorado to State of Washington flight route?

    This flight path from Colorado to Washington was viewed by 208 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Colorado to State of Washington?

    For as low as $49, Frontier can have you in State of Washington from Colorado in 3h. There are 1034 mi between Colorado and State of Washington. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Colorado to State of Washington one-way?

    $32 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and Southwest, with prices starting from $89 and $89, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to State of Washington (average of $238). Flying from Colorado to State of Washington in June is currently the most expensive (average of $388). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Newark to Fort Lauderdale flights
Dallas/Fort Worth to John F Kennedy Intl flights
John F Kennedy Intl to Los Angeles flights
Los Angeles to Newark flights
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to O'Hare Intl flights
Los Angeles to Seattle flights
San Francisco to John F Kennedy Intl flights
John F Kennedy Intl to O'Hare Intl flights
Dallas/Fort Worth to Las Vegas flights
John F Kennedy Intl to Miami flights
Newark to Miami flights
Newark to Los Angeles flights
Seattle to Las Vegas flights
Newark to Las Vegas flights
Dallas/Fort Worth to Seattle flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Las Vegas flights
Newark to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to Orlando flights
Dallas/Fort Worth to Los Angeles flights
O'Hare Intl to John F Kennedy Intl flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to Miami flights
O'Hare Intl to LaGuardia flights
O'Hare Intl to Las Vegas flights
Seattle to Los Angeles flights
O'Hare Intl to Dallas/Fort Worth flights
Dallas/Fort Worth to Denver flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Newark flights
Los Angeles to Dallas/Fort Worth flights
San Francisco to Newark flights
Newark to Orlando flights
Los Angeles to LaGuardia flights
Los Angeles to Honolulu flights
O'Hare Intl to Newark flights
Ontario to Seattle flights
Fort Lauderdale to Newark flights
Atlanta to LaGuardia flights
Hobby to Newark flights
Fort Lauderdale to LaGuardia flights
Hobby to LaGuardia flights
John F Kennedy Intl to Fort Lauderdale flights
Atlanta to John F Kennedy Intl flights
John F Kennedy Intl to Dallas/Fort Worth flights
Miami to John F Kennedy Intl flights
Miami to LaGuardia flights

Top 7 airlines flying from Colorado to Washington

Discover the top 7 airlines that operate flights from Colorado to Washington. 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 August 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$170FlexibilityNo cancel feeOn-time62%
DeltaCheapest$104Average$330FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$110Average$311FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$136Average$379FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$148Average$453FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$157Average$388FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$186Average$404FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.