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

51 flights are operational daily from State of Washington to Denver as of June 2026. The most popular departure time for this route is 1:00PM, with 45% of flights per day taking off in the afternoon.

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 40% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 7 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 week?

357 flights are operational weekly from State of Washington to Denver as of June 2026. The most popular departure day for this route is Wed, with 21% of flights per week taking off on this day.

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

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

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 16m 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 June 2026, there are 7 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.

$105 Cheap Flights from Washington to Denver in 2026

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.

7:00 pm - 3:52 am

SEA

DEN

7h 52m

1 stop

7:45 am - 9:51 am

DEN

SEA

3h 06mnonstop

$183Frontier

Mon, Sep 14 - Fri, Sep 18

7:06 pm - 10:58 pm

SEA

DEN

2h 52mnonstop

7:15 am - 9:19 am

DEN

SEA

3h 04mnonstop

$184Frontier

Tue, Aug 18 - Sat, Aug 22

7:06 pm - 10:58 pm

SEA

DEN

2h 52mnonstop

11:05 am - 1:22 pm

DEN

SEA

3h 17mnonstop

$185Frontier

Tue, Aug 18 - Tue, Aug 25

7:41 pm - 11:34 pm

SEA

DEN

2h 53mnonstop

7:45 am - 9:51 am

DEN

SEA

3h 06mnonstop

$186Frontier

Thu, Oct 22 - Tue, Oct 27

3:22 pm - 6:58 pm

PDX

DEN

2h 36mnonstop

12:31 pm - 8:40 pm

DEN

PDX

9h 09m

1 stop

$213Multiple Airlines

Fri, Oct 2 - Mon, Oct 5

6:04 pm - 11:59 pm

PSC

DEN

4h 55m

1 stop

6:02 am - 9:53 am

DEN

PSC

4h 51m

1 stop

$249Alaska Airlines

Wed, Aug 12 - Tue, Aug 18

1:28 pm - 3:50 am

BLI

DEN

13h 22m

1 stop

7:03 pm - 9:07 am

DEN

BLI

15h 04m

1 stop

$250Multiple Airlines

Sun, Aug 9 - Thu, Aug 13

12:54 pm - 9:28 pm

PAE

DEN

7h 34m

1 stop

7:50 am - 11:27 am

DEN

PAE

4h 37m

1 stop

$257Alaska Airlines

Tue, Nov 3 - Wed, Nov 4

6:15 am - 1:11 pm

PSC

DEN

5h 56m

1 stop

6:20 am - 11:45 am

DEN

PSC

6h 25m

1 stop

$289Delta

Sat, Aug 15 - Sat, Aug 22

5:14 am - 8:36 am

PSC

DEN

2h 22mnonstop

7:24 pm - 8:52 pm

DEN

PSC

2h 28mnonstop

$309United Airlines

Thu, Jul 9 - Sat, Jul 11

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

Alaska Airlines flights from State of Washington to Denver

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

Alaska Airlines

Aug 12

PSC6:04 pmPasco Tri Cities

4h 55m

1 stop

DEN11:59 pmDenver Intl

Aug 18

DEN8:00 amDenver Intl

8h 22m

1 stop

PSC3:22 pmPasco Tri Cities

$249

Alaska Airlines

Nov 3

PAE12:54 pmEverett Paine Field

7h 34m

1 stop

DEN9:28 pmDenver Intl

Nov 4

DEN7:50 amDenver Intl

4h 37m

1 stop

PAE11:27 amEverett Paine Field

$257

Alaska Airlines

Sep 19

GEG6:00 amSpokane

14h 13m

1 stop

DEN9:13 pmDenver Intl

Sep 23

DEN1:43 pmDenver Intl

11h 10m

1 stop

GEG11:53 pmSpokane

$287

United Airlines flights from State of Washington to Denver

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

United Airlines

Jul 30

GEG4:18 pmSpokane

2h 25m

DEN7:43 pmDenver Intl

Aug 4

DEN1:46 pmDenver Intl

2h 25m

GEG3:11 pmSpokane

$341

United Airlines

Oct 6

PSC5:05 amPasco Tri Cities

2h 22m

DEN8:27 amDenver Intl

Oct 9

DEN7:13 pmDenver Intl

2h 27m

PSC8:40 pmPasco Tri Cities

$347

United Airlines

Aug 11

PSC5:15 amPasco Tri Cities

2h 22m

DEN8:37 amDenver Intl

Aug 18

DEN7:10 pmDenver Intl

2h 27m

PSC8:37 pmPasco Tri Cities

$349

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Mon 9/14

7:00 pm-3:52 am

1 stop7h 52m

Denver Intl

Fri 9/18

7:45 am-9:51 am

Nonstop3h 06m

$183

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 8/18

7:06 pm-10:58 pm

Nonstop2h 52m

Denver Intl

Sat 8/22

7:15 am-9:19 am

Nonstop3h 04m

$184

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 8/18

7:06 pm-10:58 pm

Nonstop2h 52m

Denver Intl

Tue 8/25

11:05 am-1:22 pm

Nonstop3h 17m

$185

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 10/22

7:41 pm-11:34 pm

Nonstop2h 53m

Denver Intl

Tue 10/27

7:45 am-9:51 am

Nonstop3h 06m

$186

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 10/2

3:22 pm-6:58 pm

Nonstop2h 36m

Denver Intl

Mon 10/5

12:31 pm-8:40 pm

1 stop9h 09m

$213

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Wed 8/12

6:04 pm-11:59 pm

1 stop4h 55m

Denver Intl

Tue 8/18

6:02 am-9:53 am

1 stop4h 51m

$249

BellinghamDenver

BLI - DEN

BLIDEN

Bellingham

Sun 8/9

1:28 pm-3:50 am

1 stop13h 22m

Denver Intl

Thu 8/13

7:03 pm-9:07 am

1 stop15h 04m

$250

EverettDenver

PAE - DEN

PAEDEN

Everett Paine Field

Tue 11/3

12:54 pm-9:28 pm

1 stop7h 34m

Denver Intl

Wed 11/4

7:50 am-11:27 am

1 stop4h 37m

$257

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Sat 8/15

6:15 am-1:11 pm

1 stop5h 56m

Denver Intl

Sat 8/22

6:20 am-11:45 am

1 stop6h 25m

$289

Quickest round-trip

PascoDenver

PSC - DEN

PSCDEN

Pasco Tri Cities

Thu 7/9

5:14 am-8:36 am

Nonstop2h 22m

Denver Intl

Sat 7/11

7:24 pm-8:52 pm

Nonstop2h 28m

$309

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 October. Flight prices, which tend to average around $213, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in October, then you should wait until September to fly from State of Washington, when ticket prices are also cheap, with an average price of $224.

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 $294. 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 $364.

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 $258. Flights in the morning are often more expensive with an average ticket price of $348.

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 $229 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 $180 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	$185
Fastest flight time	2h 16m
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 $185. The best round-trip flight deal from State of Washington to Denver found on momondo in the last 72 hours is $333.

The fastest flight from State of Washington to Denver takes 2h 16m

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 June 2026, there are 7 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 19.02% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 16.14%, Boeing 737-800 at 13.06%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 11.40%.

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 $56	Free Cancellation	Rating 5.6 2,867 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $69	Free Cancellation	Rating 7.8 2,826 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $91	Free Cancellation	Rating 7.8 8,431 reviews	Search Delta flights
Alaska Airlines	PriceFrom $108	Free Cancellation	Rating 7.9 12,568 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 7.9 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.4 9,880 reviews	Search United Airlines flights
JetBlue	PriceFrom $200	Free Cancellation	Rating 7.1 3,002 reviews	Search JetBlue flights

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Longmont

Boulder

Manitou Springs

Westminster

Greeley

Lakewood

Keystone

Thornton

Cripple Creek

Englewood

Frisco

Centennial

Winter Park

Littleton

Copper Mountain

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

Fri 7/24

Fri 7/31

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 $105

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 8/18. 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

Alaska Airlines flights from State of Washington to Denver

Our best Alaska Airlines 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

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

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