$49 Find Cheap Flights from Denver to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Washington departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Washington.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Washington.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattlenonstop$77
Spokane
Spokanenonstop$157
Pasco
Pasco1 stop$165
Bellingham
Bellingham1 stop$236
Pullman
Pullman1 stop$244
Walla Walla
Walla Walla1 stop$265
Yakima
Yakima1 stop$237
Wenatchee
Wenatchee1 stop$240
Seattle
Seattlenonstop$77
Spokane
Spokanenonstop$157
Pasco
Pasco1 stop$165
Bellingham
Bellingham1 stop$236
Pullman
Pullman1 stop$244
Walla Walla
Walla Walla1 stop$265
Yakima
Yakima1 stop$237
Wenatchee
Wenatchee1 stop$240

Book Cheap Denver to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Washington

Thu, May 7 - Sun, May 10
Multiple Airlines Logo
7:15 am - 9:27 am
DEN
-
SEA
3h 12mnonstop
Multiple Airlines Logo
8:05 pm - 11:59 pm
SEA
-
DEN
2h 54mnonstop
$77Multiple Airlines
Sat, May 2 - Wed, May 6
Multiple Airlines Logo
8:00 am - 10:07 am
DEN
-
SEA
3h 07mnonstop
Multiple Airlines Logo
6:57 pm - 10:49 pm
SEA
-
DEN
2h 52mnonstop
$79Multiple Airlines
Sat, Apr 18 - Tue, Apr 21
Frontier Logo
7:15 am - 9:27 am
DEN
-
SEA
3h 12mnonstop
Frontier Logo
7:12 pm - 10:59 pm
SEA
-
DEN
2h 47mnonstop
$81Frontier
Sat, Apr 18 - Tue, Apr 21
Frontier Logo
7:15 am - 9:27 am
DEN
-
SEA
3h 12mnonstop
Frontier Logo
7:12 pm - 10:59 pm
SEA
-
DEN
2h 47mnonstop
$82Frontier
Fri, May 8 - Fri, May 8
Frontier Logo
7:15 am - 9:27 am
DEN
-
SEA
3h 12mnonstop
Frontier Logo
4:20 pm - 8:11 pm
SEA
-
DEN
2h 51mnonstop
$84Frontier
Fri, May 1 - Mon, May 4
Delta Logo
6:55 am - 11:48 am
DEN
-
PSC
5h 53m
1 stop
Delta Logo
5:49 pm - 11:50 pm
PSC
-
DEN
5h 01m
1 stop
$165Delta
Thu, Apr 16 - Sun, Apr 19
Delta Logo
7:45 pm - 12:20 am
DEN
-
GEG
5h 35m
1 stop
Delta Logo
6:15 am - 12:17 pm
GEG
-
DEN
5h 02m
1 stop
$165Delta
Tue, Apr 14 - Tue, Apr 21
Alaska Airlines Logo
1:16 pm - 9:50 am
DEN
-
PAE
21h 34m
2 stops
Alaska Airlines Logo
6:28 pm - 6:25 pm
PAE
-
DEN
22h 57m
2 stops
$233Alaska Airlines
Wed, Apr 29 - Sat, May 2
Alaska Airlines Logo
6:00 am - 1:20 pm
DEN
-
YKM
8h 20m
1 stop
Alaska Airlines Logo
1:57 pm - 9:49 pm
YKM
-
DEN
6h 52m
1 stop
$237Alaska Airlines
Thu, Apr 30 - Mon, May 4
United Airlines Logo
7:20 pm - 8:52 pm
DEN
-
PSC
2h 32mnonstop
United Airlines Logo
5:00 am - 8:29 am
PSC
-
DEN
2h 29mnonstop
$249United Airlines
Booking Insights

KAYAK's insights & trends for Denver to Washington flights

Get data-powered insights and trends into flights from Denver to Washington to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Denver to Washington flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Washington from Denver found in the last 72 hours was to Spokane, at $32 round-trip. The most popular route is from Denver (DEN) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $66.

What is the cheapest time of day to fly to Washington?

The average price for all round-trip flights from Denver to Washington depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $267 on average. Morning departures are around 15% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $366.

Can I save money by flying with a layover from Denver to Washington?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $259, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Denver to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Washington is January, when tickets cost $138 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $257 and $247 respectively.

What’s the cheapest day of the week to fly from Denver to Washington?

The average price of all round-trip flights from Denver to Washington clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Denver to Washington. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Washington, you should book around 3 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$49
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Denver to Seattle

Flights from Denver to Washington: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Denver to Washington 
Verified travelerFlew with Delta
DEN
-
SEA
Jun 2025
If you are on the left side of the plane you should spot Mt. Rainer on your way into Seattle.
Verified travelerFlew with Alaska Airlines
DEN
-
SEA
Oct 2024
Go early, it’s a big airport. There are two TSA screening areas, one might be more crowded than the other. From checking it to the gate give yourself at least 20-30 minutes to get there.
F.Flew with United Airlines
DEN
-
PSC
Aug 2024
Check airline delay flight rate and choose another airline if you have important commitments to avoid frustration and missing important meetings.

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Denver to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Denver to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Denver to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Denver to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Washington

  • Looking for a cheap flight? 25% of our users found tickets from Denver to the following destinations at these prices or less: Seattle $125 one-way - $181 round-trip

Reviews of the top 5 airlines serving from Denver to Washington

 
See real verified KAYAK customer reviews for airlines flying from Denver to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 12042 reviews
7.8Comfort
7.0Entertainment
8.1Boarding
7.1Food
8.5Crew
Airline reviews

signage from the upper area to the tram down 2 escalator!

8.0 ExcellentAnonymous, Mar 2026
PSP - SEA
Read more Alaska Airlines reviews

signage from the upper area to the tram down 2 escalator!

The WiFi worked for entertainment but a nearly 4 hour flight should have personal tvs

Generally very good. Waiting (due to de-icing and traffic) in plane to take off was a put-off. But it's not the airline's fault. I find Airbus more comfortable than Boeing.

Lot's of good food and free entanglement made the trip pleasurable and fun.

The food was terrible, worse that what you get with UA, an already one of the lowest standards to beat. How cheap one could be, providing that kind of junk food in first class. Unbelievable! The seats were not very comfortable either. And there were no screens either, not that I cared much but for you to know.

Easy check-in. Good customer service. Had to check carry-on due to lack of overhead space. Wish the airplane was configured with more overhead area so this doesn't usually happen.

Great flights, little turbulence, pilots kept stewardesses seated & safe, all staff friendly & professional

There is no entertainment on the plane. The snack is minimal. The crew was nice and professional.

Smooth flight, on time despite Captain’s forecast of troublesome weather conditions.

The aircraft was extremely warm the entire flight. After we landed we were stuck on the plane for another 45 minutes without a gate to deboard from. The smell of exhaust from the engines in the cabin along with the heat inside the cabin made the flight uncomfortable.

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

Everything you need to know for your flight from Denver to Washington

Information on your arrival and departure airports