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

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

What airlines fly to Colorado?

Frontier, United Airlines and Delta are the top three most popular airlines that fly to Colorado from State of Washington 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 Colorado. Keep in mind that there are 7 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

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

59 flights are operational daily from State of Washington to Colorado as of September 2025. The most popular departure time for this route is 6:00PM, with 41% of flights per day taking off in the afternoon.

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

As of September 2025, 419 flights take off from State of Washington and land in Colorado each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.

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

Flight times from State of Washington to Colorado vary, but if you’re flying out of Spokane and flying into Denver (one of the most popular routes), then the duration is 2h 16m on average. Another popular route from State of Washington to Colorado is flying from Pasco to Denver, which will take roughly 2h 22m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Washington to Colorado refresh daily.

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

The number of operators available for flights from Washington to Colorado is 7 as of September 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Colorado.

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

The required travel and health documents for your Colorado 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 Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$42 Cheap Flights from Washington to Colorado in 2025/26

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Find the cheapest flights from Washington to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:57 pm - 3:59 amPDX-DEN

7h 02m1 stop

10:05 am - 11:56 amDEN-PDX

2h 51mnonstop

$90Frontier

Find Deal

Sun, Nov 16 - Tue, Nov 18

7:16 pm - 10:24 amPDX-DEN

14h 08m1 stop

8:50 pm - 10:34 pmDEN-PDX

2h 44mnonstop

$91Frontier

Find Deal

Mon, Sep 29 - Sat, Oct 4

5:00 am - 8:34 amPDX-DEN

2h 34mnonstop

7:46 am - 9:38 amDEN-PDX

2h 52mnonstop

$133United Airlines

Find Deal

Thu, Oct 23 - Sun, Oct 26

7:35 am - 11:28 amSEA-DEN

2h 53mnonstop

7:41 pm - 9:45 pmDEN-SEA

3h 04mnonstop

$133Delta

Find Deal

Tue, Oct 7 - Sat, Oct 11

7:25 am - 4:40 pmPDX-DEN

8h 15m2 stops

10:25 pm - 12:05 amDEN-PDX

2h 40mnonstop

$148Southwest

Find Deal

Tue, Oct 21 - Thu, Oct 30

9:58 am - 5:09 pmPDX-COS

6h 11m1 stop

5:49 pm - 10:27 pmCOS-PDX

5h 38m1 stop

$153Delta

Find Deal

Tue, Oct 28 - Wed, Oct 29

7:00 am - 7:06 pmGEG-DEN

11h 06m1 stop

12:49 pm - 11:56 pmDEN-GEG

12h 07m1 stop

$181Alaska Airlines

Find Deal

Tue, Oct 28 - Fri, Oct 31

9:15 am - 6:10 pmSEA-COS

7h 55m2 stops

12:15 pm - 10:30 pmCOS-SEA

11h 15m2 stops

$187Southwest

Find Deal

Wed, Oct 29 - Wed, Nov 5

8:35 am - 2:36 pmPDX-COS

5h 01m1 stop

5:05 pm - 9:26 pmCOS-PDX

5h 21m1 stop

$208United Airlines

Find Deal

Tue, Oct 21 - Fri, Oct 31

1:40 pm - 7:19 pmPSC-DEN

4h 39m1 stop

5:15 pm - 8:56 pmDEN-PSC

4h 41m1 stop

$213Alaska Airlines

Find Deal

Tue, Mar 3 - Wed, Mar 4

Frontier flights from State of Washington to Colorado

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

Frontier

Nov 16

PDX7:57 pmPortland

7h 02m

1 stop

DEN3:59 amDenver Intl

Nov 18

DEN10:05 amDenver Intl

2h 51m

PDX11:56 amPortland

$90

Find similar

Frontier

Sep 29

PDX7:16 pmPortland

14h 08m

1 stop

DEN10:24 amDenver Intl

Oct 4

DEN8:50 pmDenver Intl

2h 44m

PDX10:34 pmPortland

$91

Find similar

Frontier

Oct 3

PDX11:14 amPortland

11h 02m

1 stop

DEN11:16 pmDenver Intl

Oct 4

DEN8:50 pmDenver Intl

2h 44m

PDX10:34 pmPortland

$92

Find similar

Delta flights from State of Washington to Colorado

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

Delta

Oct 7

SEA7:35 amSeattle/Tacoma Intl

2h 53m

DEN11:28 amDenver Intl

Oct 11

DEN7:41 pmDenver Intl

3h 04m

SEA9:45 pmSeattle/Tacoma Intl

$133

Find similar

Delta

Oct 28

PDX9:58 amPortland

6h 11m

1 stop

COS5:09 pmColorado Springs

Oct 29

COS5:49 pmColorado Springs

5h 38m

1 stop

PDX10:27 pmPortland

$153

Find similar

Delta

Oct 28

PDX11:10 amPortland

10h 00m

2 stops

COS10:10 pmColorado Springs

Oct 29

COS5:49 pmColorado Springs

5h 38m

1 stop

PDX10:27 pmPortland

$158

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sun 11/16

7:57 pm-3:59 am

1 stop7h 02m

Denver Intl

Tue 11/18

10:05 am-11:56 am

Nonstop2h 51m

$90

PortlandDenver

PDX - DEN

PDXDEN

Portland

Mon 9/29

7:16 pm-10:24 am

1 stop14h 08m

Denver Intl

Sat 10/4

8:50 pm-10:34 pm

Nonstop2h 44m

$91

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 10/23

5:00 am-8:34 am

Nonstop2h 34m

Denver Intl

Sun 10/26

7:46 am-9:38 am

Nonstop2h 52m

$133

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 10/7

7:35 am-11:28 am

Nonstop2h 53m

Denver Intl

Sat 10/11

7:41 pm-9:45 pm

Nonstop3h 04m

$133

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 10/21

7:25 am-4:40 pm

2 stops8h 15m

Denver Intl

Thu 10/30

10:25 pm-12:05 am

Nonstop2h 40m

$148

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Tue 10/28

9:58 am-5:09 pm

1 stop6h 11m

Colorado Springs

Wed 10/29

5:49 pm-10:27 pm

1 stop5h 38m

$153

SpokaneDenver

GEG - DEN

GEGDEN

Spokane

Tue 10/28

7:00 am-7:06 pm

1 stop11h 06m

Denver Intl

Fri 10/31

12:49 pm-11:56 pm

1 stop12h 07m

$181

SeattleColorado Springs

SEA - COS

SEACOS

Seattle/Tacoma Intl

Wed 10/29

9:15 am-6:10 pm

2 stops7h 55m

Colorado Springs

Wed 11/5

12:15 pm-10:30 pm

2 stops11h 15m

$187

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Tue 10/21

8:35 am-2:36 pm

1 stop5h 01m

Colorado Springs

Fri 10/31

5:05 pm-9:26 pm

1 stop5h 21m

$208

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Tue 3/3

1:40 pm-7:19 pm

1 stop4h 39m

Denver Intl

Wed 3/4

5:15 pm-8:56 pm

1 stop4h 41m

$213

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 State of Washington to Colorado

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

Airlines

Other information

What is the cheapest month to fly to Colorado?

The month of October is, on average, the cheapest month to fly to Colorado from State of Washington, with most prices found around $165. The month of November is another great option to travel to Colorado, with average flight prices from State of Washington averaging around $182.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from State of Washington to Colorado is on a Saturday when prices can be found for as low as $275. On the other hand, Monday is the most expensive day to depart from State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $340.

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $232. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $325 per ticket.

What is the cheapest Washington to Colorado flight route?

Fly from Everett Paine Field to Denver Intl for the best Washington - Colorado flight prices

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $211 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from State of Washington for as low as $184 on momondo.

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

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

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

Cheap State of Washington to Colorado flight deals and tips

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

Best Price Found	$102
Fastest flight time	2h 05m
Direct flights	Every day
Airports in Colorado	1 airport

The best one-way flight to Colorado from State of Washington in the past 72 hours is $102. The best round-trip flight deal from State of Washington to Colorado found on momondo in the last 72 hours is $130.

The fastest flight from State of Washington to Colorado takes 2h 05m

Direct flights go from State of Washington to Colorado every day.

There is 1 airport near Colorado: Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from Washington to Colorado?
Prices for flights from Washington to Colorado refresh daily.
How many operators does momondo search for flights from Washington to Colorado?
The number of operators available for flights from Washington to Colorado is 7 as of September 2025.
How old do you have to be to fly from Washington to Colorado?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Colorado.
What documentation or ID do you need to fly to Colorado?
The required travel and health documents for your Colorado 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 Colorado. 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 State of Washington to Colorado?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from State of Washington to Colorado is Boeing 737-800 Passenger/BBJ2 (winglets) (16.21% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (13.84%), Boeing 737 MAX 9 (11.12%), and Boeing 737-900 (9.05%).

Best airlines flying from State of Washington to Colorado

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $67	Free Cancellation	Rating 5.8 3,171 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $87	Free Cancellation	Rating 7.8 2,732 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $117	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Southwest	PriceFrom $127	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom $149	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $168	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $169	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Colorado. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Washington to Colorado flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Colorado.

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

Yes momondo offers price alerts on flights to Colorado from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Colorado 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.

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Popular cities in Colorado

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Cheap flights from Washington to Colorado from $42

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Colorado departing on 10/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Washington to Colorado

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from State of Washington to Colorado

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

Delta flights from State of Washington to Colorado

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Colorado that are best for you.

See travel insights to Colorado from

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

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

What is the cheapest month to fly to Colorado?

The month of October is, on average, the cheapest month to fly to Colorado from State of Washington, with most prices found around $165. The month of November is another great option to travel to Colorado, with average flight prices from State of Washington averaging around $182.

What is the cheapest day to depart on your flight to Colorado?

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $232. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $325 per ticket.

What is the cheapest Washington to Colorado flight route?

Fly from Everett Paine Field to Denver Intl for the best Washington - Colorado flight prices

How far in advance should I book a flight to Colorado?

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

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

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

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

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

What airlines fly to Colorado?

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

59 flights are operational daily from State of Washington to Colorado as of September 2025. The most popular departure time for this route is 6:00PM, with 41% of flights per day taking off in the afternoon.

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

As of September 2025, 419 flights take off from State of Washington and land in Colorado each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.

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

Cheap State of Washington to Colorado flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

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

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

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

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

What is the most popular plane model from State of Washington to Colorado?

Best airlines flying from State of Washington to Colorado

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

Why use momondo?

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

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

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

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

An easier way to manage your Colorado 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 Colorado

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo