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

If you’re flying from a popular airport in Colorado, such as Denver or Vail, and flying into State of Washington, then you can expect flight times to average 3h and 3h 07m, respectively.

How many flights depart from Colorado to State of Washington on average per week?

79 flights are operational weekly from Colorado to State of Washington as of March 2026. The most popular departure day for this route is Sat, with 70% of flights per week taking off on this day.

How many flights depart from Colorado to State of Washington on average per day?

As of March 2026, 11 flights take off from Colorado and land in State of Washington each day. The most common flight departure time for this route is 7:00AM, with 53% of daily flights taking off at noon.

What is the cheapest airline that flies from Colorado to Washington?

Southwest, Delta, and United Airlines are the most popular carriers operating from Colorado to Washington

What airlines fly to State of Washington?

Frontier, United Airlines and Alaska Airlines are the top three most popular airlines that fly to State of Washington from Colorado according to our data. Frontier is the first choice among our users, with 35% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 7 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Colorado to Washington?

Prices for flights from Colorado to Washington are updated daily.

How many operators does momondo search for flights from Colorado to Washington?

The number of operators available for flights from Colorado to Washington is 7 as of March 2026.

How old do you have to be to fly from Colorado to Washington?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$51 Cheap Flights from Colorado to Washington in 2026

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 8:03 am

DEN

SEA

3h 03mnonstop

6:57 pm - 10:49 pm

SEA

DEN

2h 52mnonstop

$79Multiple Airlines

Tue, Apr 28 - Tue, May 5

7:40 am - 9:52 am

DEN

SEA

3h 12mnonstop

7:12 pm - 10:59 pm

SEA

DEN

2h 47mnonstop

$80Frontier

Fri, Apr 17 - Sat, Apr 25

11:55 am - 4:48 pm

COS

SEA

5h 53m

1 stop

5:35 am - 11:12 am

SEA

COS

4h 37m

1 stop

$137Delta

Tue, Apr 14 - Tue, Apr 21

7:20 pm - 12:55 am

COS

SEA

6h 35m

1 stop

5:45 am - 1:40 pm

SEA

COS

6h 55m

1 stop

$151Southwest

Fri, May 1 - Sat, May 9

6:25 am - 1:40 pm

COS

PDX

8h 15m

1 stop

2:35 pm - 8:45 pm

PDX

COS

5h 10m

1 stop

$151Southwest

Tue, Mar 24 - Tue, Apr 7

11:55 am - 4:48 pm

COS

SEA

5h 53m

1 stop

5:35 am - 11:12 am

SEA

COS

4h 37m

1 stop

$157Delta

Tue, Apr 14 - Tue, Apr 21

7:28 pm - 9:01 pm

DEN

PSC

2h 33mnonstop

5:00 am - 8:29 am

PSC

DEN

2h 29mnonstop

$229United Airlines

Thu, Apr 23 - Sun, Apr 26

1:16 pm - 9:50 am

DEN

PAE

21h 34m

2 stops

6:28 pm - 12:06 pm

PAE

DEN

16h 38m

2 stops

$233Alaska Airlines

Mon, Apr 20 - Tue, Apr 21

5:30 am - 9:46 am

GJT

SEA

5h 16m

1 stop

8:45 am - 8:59 pm

SEA

GJT

11h 14m

2 stops

$236United Airlines

Thu, Apr 23 - Wed, Apr 29

1:16 pm - 9:50 am

DEN

PAE

21h 34m

2 stops

8:20 am - 11:59 pm

PAE

DEN

14h 39m

2 stops

$244Alaska Airlines

Wed, Apr 15 - Tue, Apr 28

Delta flights from Colorado to State of Washington

Our best Delta deals on Colorado to State of Washington flight tickets

Delta

May 5

DEN7:45 pmDenver Intl

3h 20m

SEA10:05 pmSeattle/Tacoma Intl

May 14

SEA7:59 pmSeattle/Tacoma Intl

2h 53m

DEN11:52 pmDenver Intl

$97

Delta

May 6

DEN8:10 amDenver Intl

5h 15m

1 stop

SEA12:25 pmSeattle/Tacoma Intl

May 8

SEA7:59 pmSeattle/Tacoma Intl

2h 53m

DEN11:52 pmDenver Intl

$107

Delta

Apr 3

DEN7:40 pmDenver Intl

3h 12m

SEA9:52 pmSeattle/Tacoma Intl

Apr 7

SEA7:46 pmSeattle/Tacoma Intl

2h 46m

DEN11:32 pmDenver Intl

$117

Frontier flights from Colorado to State of Washington

Our best Frontier deals on Colorado to State of Washington flight tickets

Frontier

Apr 17

DEN7:40 amDenver Intl

3h 12m

SEA9:52 amSeattle/Tacoma Intl

Apr 25

SEA7:12 pmSeattle/Tacoma Intl

2h 47m

DEN10:59 pmDenver Intl

$80

Frontier

Apr 18

DEN7:15 amDenver Intl

3h 12m

SEA9:27 amSeattle/Tacoma Intl

Apr 20

SEA7:12 pmSeattle/Tacoma Intl

2h 47m

DEN10:59 pmDenver Intl

$81

Frontier

Apr 18

DEN7:15 amDenver Intl

3h 12m

SEA9:27 amSeattle/Tacoma Intl

Apr 20

SEA7:12 pmSeattle/Tacoma Intl

2h 47m

DEN10:59 pmDenver Intl

$82

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Tue 4/28

6:00 am-8:03 am

Nonstop3h 03m

Seattle/Tacoma Intl

Tue 5/5

6:57 pm-10:49 pm

Nonstop2h 52m

$79

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Fri 4/17

7:40 am-9:52 am

Nonstop3h 12m

Seattle/Tacoma Intl

Sat 4/25

7:12 pm-10:59 pm

Nonstop2h 47m

$80

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 4/14

11:55 am-4:48 pm

1 stop5h 53m

Seattle/Tacoma Intl

Tue 4/21

5:35 am-11:12 am

1 stop4h 37m

$137

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 5/1

7:20 pm-12:55 am

1 stop6h 35m

Seattle/Tacoma Intl

Sat 5/9

5:45 am-1:40 pm

1 stop6h 55m

$151

Colorado SpringsPortland

COS - PDX

COSPDX

Colorado Springs

Tue 3/24

6:25 am-1:40 pm

1 stop8h 15m

Portland

Tue 4/7

2:35 pm-8:45 pm

1 stop5h 10m

$151

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 4/14

11:55 am-4:48 pm

1 stop5h 53m

Seattle/Tacoma Intl

Tue 4/21

5:35 am-11:12 am

1 stop4h 37m

$157

Quickest round-trip

DenverPasco

DEN - PSC

DENPSC

Denver Intl

Thu 4/23

7:28 pm-9:01 pm

Nonstop2h 33m

Pasco Tri Cities

Sun 4/26

5:00 am-8:29 am

Nonstop2h 29m

$229

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Mon 4/20

1:16 pm-9:50 am

2 stops21h 34m

Everett Paine Field

Tue 4/21

6:28 pm-12:06 pm

2 stops16h 38m

$233

Grand JunctionSeattle

GJT - SEA

GJTSEA

Grand Junction Regnl

Thu 4/23

5:30 am-9:46 am

1 stop5h 16m

Seattle/Tacoma Intl

Wed 4/29

8:45 am-8:59 pm

2 stops11h 14m

$236

DenverEverett

DEN - PAE

DENPAE

Denver Intl

Wed 4/15

1:16 pm-9:50 am

2 stops21h 34m

Everett Paine Field

Tue 4/28

8:20 am-11:59 pm

2 stops14h 39m

$244

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to State of Washington

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

Prices

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Other information

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Colorado, with most prices found around $138. If you aren’t able to travel to State of Washington during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $177.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Colorado to State of Washington is on a Thursday. Travelers who choose to depart for State of Washington on a Thursday will often find tickets for as low as $283. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Colorado to State of Washington for around $422.

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

The cheapest time of day to fly to State of Washington is in the evening when flights can be purchased for as low as $267. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $366 on average. Flights to State of Washington from Colorado in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Colorado to Washington flight route?

Fly from Denver Intl to Seattle/Tacoma Intl for the best Colorado - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $208 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Colorado for as low as $179 on momondo.

What cabin class options are available on Colorado to Washington flights?

There are 4 cabin classes available to choose from on Colorado to Washington 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 Colorado to State of Washington flights?

No. A direct flight is the cheapest option for a flight between Colorado to State of Washington.

Cheap Colorado to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to State of Washington

Best Price Found	$109
Fastest flight time	2h 20m
Direct flights	Mon, Wed, Fri, Sat and Sun
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Colorado in the past 72 hours is $109. The best round-trip flight deal from Colorado to State of Washington found on momondo in the last 72 hours is $119.

The fastest flight from Colorado to State of Washington takes 2h 20m

Direct flights go from Colorado to State of Washington on Monday, Wednesday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines, Delta and Alaska Airlines.

There are 96 airports in State of Washington. From Colorado there are direct flights to Spokane (GEG).

Search flight deals

When did momondo last update prices for flights from Colorado to Washington?
Prices for flights from Colorado to Washington are updated daily.
How many operators does momondo search for flights from Colorado to Washington?
The number of operators available for flights from Colorado to Washington is 7 as of March 2026.
How old do you have to be to fly from Colorado to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Colorado to State of Washington?
momondo data reveals that the most frequently booked plane model on the route from Colorado to State of Washington is Boeing 737 MAX 8, representing 16.79% of all bookings. The subsequent popular models are Boeing 737-800 at 14.30%, Boeing 737-800 Passenger/BBJ2 (winglets) at 12.41%, and Boeing 737 MAX 9 at 11.21%.

Best airlines flying from Colorado to State of Washington

Compare and see reviews for airlines that fly from Colorado to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $55	Free Cancellation	Rating 5.7 3,039 reviews	Search Frontier flights
Delta	PriceFrom $93	Free Cancellation	Rating 7.9 8,270 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $106	Free Cancellation	Rating 7.8 2,836 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 8.0 4,311 reviews	Search Southwest flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 9,404 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $129	Free Cancellation	Rating 8.0 11,992 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $186	Free Cancellation	Rating 7.1 11,395 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Washington?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from Colorado.

Can I find flights from Colorado to Washington with flexible booking policies on momondo?

All flight searches from Colorado to Washington on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Colorado to Washington?

Once all potential Colorado to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Colorado to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Colorado to Washington from $51

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Washington departing on 5/3. 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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Delta flights from Colorado to State of Washington

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How to get the cheapest flight ticket from Colorado to State of Washington

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

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

What is the cheapest Colorado to Washington flight route?

How far in advance should I book a flight to State of Washington?

What cabin class options are available on Colorado to Washington flights?

Can stopping save me money on Colorado to State of Washington flights?

What is the cheapest airline that flies from Colorado to Washington?

What airlines fly to State of Washington?

How many flights depart from Colorado to State of Washington on average per day?

How many flights depart from Colorado to State of Washington on average per week?

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

Cheap Colorado to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to State of Washington

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

Best airlines flying from Colorado to State of Washington

Compare and see reviews for airlines that fly from Colorado to State of Washington with momondo

Why use momondo?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

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