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$39+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SEA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Colorado to Washington

Discover tips and strategies to find the most affordable flight options for your journey from Colorado (USCO) to Washington (USWA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$76
(Cheapflightsfares)

One-way from

$54
(Frontier)

Good round-trip deal

$227 or less

Good one-way deal

$155 or less
From Colorado to Washington
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One-way flight from Colorado to Washington
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Price to beat on a round-trip flight from Colorado to Washington.
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Price to beat on a one-way flight from Colorado to Washington.
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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 January 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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.
Sat 2/810:15 pmDEN - PDX
Nonstop2h 52mFrontier
Mon 2/1012:03 pmPDX - DEN
Nonstop2h 34mFrontier
Deal found 1/21$76
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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.
Fri 2/2110:30 amDEN - SEA
Nonstop3h 06mFrontier
Mon 2/243:16 pmSEA - DEN
Nonstop2h 47mFrontier
Deal found 1/21$92
This Travelocity deal was found by Cheapflights users on 1/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/110:40 amDEN - SEA
Nonstop3h 06mMultiple Airlines
Wed 3/55:42 pmSEA - DEN
Nonstop2h 38mMultiple Airlines
Deal found 1/20$103
This Delta deal was found by Cheapflights users on 1/21. 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 3/127:50 pmDEN - SEA
Nonstop3h 13mDelta
Mon 3/177:55 pmSEA - DEN
Nonstop2h 53mDelta
Deal found 1/21$117
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Mon 3/179:00 pmDEN - SEA
Nonstop3h 01mUnited Airlines
Thu 3/205:14 amSEA - DEN
Nonstop2h 42mUnited Airlines
Deal found 1/21$133
This Orbitz deal was found by Cheapflights users on 1/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:30 amDEN - PDX
1 stop6h 55mMultiple Airlines
Tue 5/136:20 amPDX - DEN
Nonstop2h 38mMultiple Airlines
Deal found 1/19$172
This Delta deal was found by Cheapflights users on 1/20. 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.
Sat 3/15:40 amDEN - PDX
1 stop4h 36mDelta
Tue 3/45:20 pmPDX - DEN
1 stop4h 27mDelta
Deal found 1/20$177
This Southwest deal was found by Cheapflights users on 1/21. 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.
Sat 3/19:45 pmDEN - SEA
Nonstop3h 00mSouthwest
Wed 3/510:10 amSEA - DEN
2 stops7h 15mSouthwest
Deal found 1/21$182
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 4/167:57 pmDEN - SEA
Nonstop3h 02mAlaska Airlines
Thu 4/243:17 pmSEA - DEN
Nonstop2h 40mAlaska Airlines
Deal found 1/20$187
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/284:50 pmCOS - SEA
1 stop9h 06mAmerican Airlines
Sun 3/212:59 amSEA - COS
1 stop7h 56mAmerican Airlines
Deal found 1/20$188
This Southwest deal was found by Cheapflights users on 1/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2510:40 amDEN - PDX
Nonstop2h 45mSouthwest
Tue 2/252:40 pmPDX - DEN
1 stop7h 00mSouthwest
Deal found 1/20$202
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/105:15 pmCOS - SEA
1 stop6h 54mUnited Airlines
Wed 2/1212:35 pmSEA - COS
1 stop4h 18mUnited Airlines
Deal found 1/20$203

Find flights from Colorado to Washington within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 2/8

10:15 pm-12:07 am

Nonstop2h 52m

Portland

Mon 2/10

12:03 pm-3:37 pm

Nonstop2h 34m

$76

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 2/21

10:30 am-12:36 pm

Nonstop3h 06m

Seattle/Tacoma Intl

Mon 2/24

3:16 pm-7:03 pm

Nonstop2h 47m

$92

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 3/1

10:40 am-12:46 pm

Nonstop3h 06m

Seattle/Tacoma Intl

Wed 3/5

5:42 pm-9:20 pm

Nonstop2h 38m

$103

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Wed 3/12

7:50 pm-10:03 pm

Nonstop3h 13m

Seattle/Tacoma Intl

Mon 3/17

7:55 pm-11:48 pm

Nonstop2h 53m

$117

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Mon 3/17

9:00 pm-11:01 pm

Nonstop3h 01m

Seattle/Tacoma Intl

Thu 3/20

5:14 am-8:56 am

Nonstop2h 42m

$133

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Tue 5/6

7:30 am-1:25 pm

1 stop6h 55m

Portland

Tue 5/13

6:20 am-9:58 am

Nonstop2h 38m

$172

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 3/1

5:40 am-9:16 am

1 stop4h 36m

Portland

Tue 3/4

5:20 pm-10:47 pm

1 stop4h 27m

$177

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 3/1

9:45 pm-11:45 pm

Nonstop3h 00m

Seattle/Tacoma Intl

Wed 3/5

10:10 am-6:25 pm

2 stops7h 15m

$182

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 2/28

4:50 pm-12:56 am

1 stop9h 06m

Seattle/Tacoma Intl

Sun 3/2

12:59 am-9:55 am

1 stop7h 56m

$188

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Tue 2/25

10:40 am-12:25 pm

Nonstop2h 45m

Portland

Tue 2/25

2:40 pm-10:40 pm

1 stop7h 00m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 60 results
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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.

Travel insights for flights from Colorado to Washington

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

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 July is currently the most expensive (average of $411). 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 January 21, 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 January 21, 2025.

The most flights from USCO to USWA are scheduled on a Monday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 January 21, 2025.
See what other customers who have flown with Delta, Frontier and Alaska Airlines from Colorado to Washington have to say. 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
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 220 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 Colorado to State of Washington one-way?

    $54 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 $74 and $80, 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 July is currently the most expensive (average of $411). 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.

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Alternative routes for Colorado to Washington

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

Discover the top 6 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$136FlexibilityNo cancel feeOn-time62%
DeltaCheapest$89Average$372FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$129Average$397FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$129Average$373FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$136Average$488FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$206Average$438FlexibilityNo cancel feeOn-time71%
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