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

178 flights are operational weekly from State of Washington to Denver as of November 2026. The most popular departure day for this route is Sun, with 22% of flights per week taking off on this day.

What is the cheapest airline that flies from Washington to Denver Intl?

Alaska Airlines, United Airlines, and Delta are the most popular carriers operating from Washington to Denver Intl

What airlines fly to Denver?

Frontier, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Denver 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 Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

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

25 flights are operational daily from State of Washington to Denver as of November 2026. The most popular departure time for this route is 6:00PM, with 40% of flights per day taking off in the afternoon.

How long does it take to fly to Denver?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Denver you fly into. For example, flying from Spokane to Denver takes 2h 05m on average. On the other hand, flying from Pasco to Denver takes 2h 21m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Washington to Denver Intl Airport?

Prices for flights from Washington to Denver Intl Airport refresh daily.

How many operators does momondo search for flights from Washington to Denver Intl Airport?

As of November 2026, there are 6 operators available to choose from for flights from Washington to Denver Intl Airport.

How old do you have to be to fly from Washington to Denver Intl Airport?

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 Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$90 Cheap Flights from Washington to Denver in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Denver

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:33 pm - 11:53 amSEA Seattle/Tacoma Intl-DEN Denver Intl

16h 20m1 stop Las Vegas Harry Reid Intl

1:03 pm - 3:14 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 11mnonstop

$161Frontier

Thu, Jan 21 - Mon, Jan 25

4:29 pm - 8:19 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 50mnonstop

1:03 pm - 3:14 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 11mnonstop

$165Frontier

Sat, Feb 6 - Wed, Feb 10

4:29 pm - 8:19 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 50mnonstop

10:42 pm - 9:15 amDEN Denver Intl-SEA Seattle/Tacoma Intl

11h 33m1 stop San Francisco

$213Multiple Airlines

Wed, Jan 13 - Tue, Jan 19

10:09 am - 1:53 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 44mnonstop

1:32 pm - 3:43 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 11mnonstop

$213Multiple Airlines

Tue, Dec 8 - Wed, Dec 9

7:44 pm - 11:55 amGEG Spokane-DEN Denver Intl

15h 11m1 stop Seattle/Tacoma Intl

9:00 am - 2:36 pmDEN Denver Intl-GEG Spokane

6h 36m1 stop Seattle/Tacoma Intl

$237Alaska Airlines

Mon, Feb 22 - Wed, Feb 24

4:35 pm - 11:10 amGEG Spokane-DEN Denver Intl

17h 35m1 stop Seattle/Tacoma Intl

7:00 am - 11:30 amDEN Denver Intl-GEG Spokane

5h 30m1 stop Seattle/Tacoma Intl

$237Alaska Airlines

Tue, Dec 1 - Tue, Dec 8

7:57 pm - 11:46 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 49mnonstop

6:05 am - 8:23 amDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 18mnonstop

$257Delta

Sat, Dec 26 - Wed, Dec 30

7:57 pm - 11:46 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 49mnonstop

6:05 am - 8:23 amDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 18mnonstop

$257Delta

Sat, Dec 26 - Tue, Dec 29

1:35 pm - 4:40 pmGEG Spokane-DEN Denver Intl

2h 05mnonstop

8:45 am - 10:15 amDEN Denver Intl-GEG Spokane

2h 30mnonstop

$257Southwest

Wed, Dec 2 - Wed, Dec 9

1:35 pm - 4:40 pmGEG Spokane-DEN Denver Intl

2h 05mnonstop

7:40 pm - 9:10 pmDEN Denver Intl-GEG Spokane

2h 30mnonstop

$257Southwest

Tue, Dec 1 - Sat, Dec 5

Cheap last minute flights

Enter your travel dates to find the best prices.

4:27 pm - 8:15 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 48mnonstop

1:04 pm - 3:12 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 08mnonstop

$228Frontier

Mon, Nov 9 - Wed, Nov 11

7:48 pm - 6:03 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

21h 15m1 stop Los Angeles

10:55 am - 1:09 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 14mnonstop

$243Frontier

Wed, Nov 11 - Sat, Jan 9

7:48 pm - 9:45 amSEA Seattle/Tacoma Intl-DEN Denver Intl

12h 57m1 stop Los Angeles

3:05 pm - 5:07 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 02mnonstop

$369Multiple Airlines

Tue, Nov 10 - Sun, Jan 10

6:59 pm - 10:38 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 39mnonstop

7:03 am - 9:12 amDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 09mnonstop

$403Alaska Airlines

Thu, Nov 12 - Tue, Jan 12

1:59 pm - 5:39 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 40mnonstop

3:05 pm - 5:07 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 02mnonstop

$403Alaska Airlines

Thu, Nov 12 - Wed, Jan 13

8:30 am - 12:17 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 47mnonstop

1:19 pm - 3:25 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 06mnonstop

$403Delta

Thu, Nov 12 - Sat, Jan 9

4:27 pm - 8:15 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 48mnonstop

7:03 am - 9:07 amDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 04mnonstop

$410Multiple Airlines

Fri, Nov 13 - Thu, Nov 19

8:30 am - 12:17 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 47mnonstop

6:20 pm - 8:30 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 10mnonstop

$413Delta

Fri, Nov 13 - Thu, Jan 7

1:00 pm - 8:55 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

6h 55m1 stop Phoenix Sky Harbor Intl

4:25 pm - 11:45 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

8h 20m2 stops Ontario Sacramento Intl

$488Southwest

Wed, Nov 11 - Mon, Nov 30

5:40 am - 3:15 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

8h 35m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl

4:25 pm - 11:45 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

8h 20m2 stops Ontario Sacramento Intl

$493Southwest

Wed, Nov 11 - Mon, Nov 30

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Frontier flights from State of Washington to Denver

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

Frontier

Jan 21

SEA6:33 pmSeattle/Tacoma Intl

16h 20m

1 stop

DEN11:53 amDenver Intl

Jan 25

DEN1:03 pmDenver Intl

3h 11m

SEA3:14 pmSeattle/Tacoma Intl

$161

Frontier

Nov 20

SEA4:37 pmSeattle/Tacoma Intl

2h 48m

DEN8:25 pmDenver Intl

Nov 26

DEN1:14 pmDenver Intl

3h 08m

SEA3:22 pmSeattle/Tacoma Intl

$163

Frontier

Dec 5

SEA4:58 pmSeattle/Tacoma Intl

2h 50m

DEN8:48 pmDenver Intl

Dec 9

DEN1:32 pmDenver Intl

3h 11m

SEA3:43 pmSeattle/Tacoma Intl

$164

United Airlines flights from State of Washington to Denver

Our best United Airlines deals on State of Washington to Denver flight tickets

United Airlines

Dec 1

GEG5:05 amSpokane

2h 19m

DEN8:24 amDenver Intl

Dec 8

DEN7:50 pmDenver Intl

2h 35m

GEG9:25 pmSpokane

$257

United Airlines

Dec 18

GEG5:00 amSpokane

2h 30m

DEN8:30 amDenver Intl

Jan 7

DEN3:52 pmDenver Intl

2h 33m

GEG5:25 pmSpokane

$272

United Airlines

Dec 3

GEG1:49 pmSpokane

2h 15m

DEN5:04 pmDenver Intl

Dec 6

DEN11:15 amDenver Intl

2h 28m

GEG12:43 pmSpokane

$338

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDenver

SEA Seattle/Tacoma Intl - DEN Denver Intl

SEADEN

Seattle/Tacoma Intl

Thu 1/21

6:33 pm-11:53 am

1 stop16h 20m

Denver Intl

Mon 1/25

1:03 pm-3:14 pm

Nonstop3h 11m

$161

SeattleDenver

SEA Seattle/Tacoma Intl - DEN Denver Intl

SEADEN

Seattle/Tacoma Intl

Sat 2/6

4:29 pm-8:19 pm

Nonstop2h 50m

Denver Intl

Wed 2/10

1:03 pm-3:14 pm

Nonstop3h 11m

$165

SeattleDenver

SEA Seattle/Tacoma Intl - DEN Denver Intl

SEADEN

Seattle/Tacoma Intl

Wed 1/13

4:29 pm-8:19 pm

Nonstop2h 50m

Denver Intl

Tue 1/19

10:42 pm-9:15 am

1 stop11h 33m

$213

SeattleDenver

SEA Seattle/Tacoma Intl - DEN Denver Intl

SEADEN

Seattle/Tacoma Intl

Tue 12/8

10:09 am-1:53 pm

Nonstop2h 44m

Denver Intl

Wed 12/9

1:32 pm-3:43 pm

Nonstop3h 11m

$213

SpokaneDenver

GEG Spokane - DEN Denver Intl

GEGDEN

Spokane

Mon 2/22

7:44 pm-11:55 am

1 stop15h 11m

Denver Intl

Wed 2/24

9:00 am-2:36 pm

1 stop6h 36m

$237

SpokaneDenver

GEG Spokane - DEN Denver Intl

GEGDEN

Spokane

Tue 12/1

4:35 pm-11:10 am

1 stop17h 35m

Denver Intl

Tue 12/8

7:00 am-11:30 am

1 stop5h 30m

$237

SeattleDenver

SEA Seattle/Tacoma Intl - DEN Denver Intl

SEADEN

Seattle/Tacoma Intl

Sat 12/26

7:57 pm-11:46 pm

Nonstop2h 49m

Denver Intl

Wed 12/30

6:05 am-8:23 am

Nonstop3h 18m

$257

SeattleDenver

SEA Seattle/Tacoma Intl - DEN Denver Intl

SEADEN

Seattle/Tacoma Intl

Sat 12/26

7:57 pm-11:46 pm

Nonstop2h 49m

Denver Intl

Tue 12/29

6:05 am-8:23 am

Nonstop3h 18m

$257

Quickest round-trip

SpokaneDenver

GEG Spokane - DEN Denver Intl

GEGDEN

Spokane

Wed 12/2

1:35 pm-4:40 pm

Nonstop2h 05m

Denver Intl

Wed 12/9

8:45 am-10:15 am

Nonstop2h 30m

$257

SpokaneDenver

GEG Spokane - DEN Denver Intl

GEGDEN

Spokane

Tue 12/1

1:35 pm-4:40 pm

Nonstop2h 05m

Denver Intl

Sat 12/5

7:40 pm-9:10 pm

Nonstop2h 30m

$257

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 Denver

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 Denver?

The cheapest month to fly to Denver from State of Washington is in January. Flight prices, which tend to average around $184, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until February to fly from State of Washington, when ticket prices are also cheap, with an average price of $216.

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

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $337. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $396.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $275. Flights in the morning are often more expensive with an average ticket price of $417.

What is the cheapest Washington to Denver Intl flight route?

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

How far in advance should I book a flight from Washington to Denver?

You are more likely to see cheaper flights to Denver from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $266 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from State of Washington for as low as $218 on momondo.

What cabin class options are available on State of Washington to Denver flights?

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

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

Cheap State of Washington to Denver flight deals and tips

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

Best Price Found	$90
Fastest flight time	2h 05m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from State of Washington in the past 72 hours is $90. The best round-trip flight deal from State of Washington to Denver found on momondo in the last 72 hours is $161.

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

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

There is 1 airport in Denver. From State of Washington there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Washington to Denver

When did momondo last update prices for flights from Washington to Denver Intl Airport?
Prices for flights from Washington to Denver Intl Airport refresh daily.
How many operators does momondo search for flights from Washington to Denver Intl Airport?
As of November 2026, there are 6 operators available to choose from for flights from Washington to Denver Intl Airport.
How old do you have to be to fly from Washington to Denver Intl Airport?
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 Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from State of Washington to Denver?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Denver is Airbus A321neo, representing 18.53% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 17.90%, Boeing 737-800 Passenger/BBJ2 (winglets) at 15.42%, and Boeing 737-800 at 11.14%.

Best airlines flying from State of Washington to Denver

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $50	Free Cancellation	Rating 5.5 2,511 reviews	Search Frontier flights
Delta	PriceFrom $97	Free Cancellation	Rating 7.8 8,698 reviews	Search Delta flights
Alaska Airlines	PriceFrom $113	Free Cancellation	Rating 7.9 13,156 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $135	Free Cancellation	Rating 8.0 4,215 reviews	Search Southwest flights
United Airlines	PriceFrom $143	Free Cancellation	Rating 7.3 10,472 reviews	Search United Airlines flights
JetBlue	PriceFrom $143	Free Cancellation	Rating 7.1 3,065 reviews	Search JetBlue flights

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Westminster

Lakewood

Boulder

Longmont

Manitou Springs

Greeley

Thornton

Keystone

Centennial

Littleton

Cripple Creek

Englewood

Golden

Winter Park

Greenwood Village

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Denver from Washington which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Washington.

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

Yes. momondo can track prices for Washington to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Denver 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 12/9

Wed 12/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Washington

Complete your trip

Feeling lucky

Airports servicing Colorado

Alamosa Airport

Aspen Pitkin County Airport

Cortez Montezuma County Airport

Colorado Springs Airport

Durango La Plata County Airport

Vail Eagle County Airport

Grand Junction Regnl Airport

Gunnison Airport

Hayden Yampa Valley Airport

Montrose County Airport

Telluride Airport

Cheap flights from Washington to Denver from $90

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 Denver departing on 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Washington to Denver

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Frontier flights from State of Washington to Denver

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

United Airlines flights from State of Washington to Denver

Our best United Airlines deals on State of Washington to Denver flight tickets

momondo Fare Finder

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

See travel insights to Denver from

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

What is the cheapest month to fly to Denver?

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

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

What is the cheapest Washington to Denver Intl flight route?

How far in advance should I book a flight from Washington to Denver?

What cabin class options are available on State of Washington to Denver flights?

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

What is the cheapest airline that flies from Washington to Denver Intl?

What airlines fly to Denver?

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

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

How long does it take to fly to Denver?

Cheap State of Washington to Denver flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

Frequently asked questions about flying from Washington to Denver

Best airlines flying from State of Washington to Denver

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

Traveling to a place near Denver?

Why use momondo?

An easier way to manage your Denver 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 the United States

Airports servicing Colorado

Fly your favorite airline to Denver

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Denver

List of cabin classes available on flights landing in Denver. Availability may vary depending on flight origin and airline.

Popular cities in the United States

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

Fly to other destinations from Washington

According to popular flight searches on momondo this year

Complete your trip to Denver

Explore popular destinations other users love

According to popular flight searches on momondo this year