$91 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 9/9. 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

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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.
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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$170
Spokane
Spokane1 stop$219
Pasco
Pasco1 stop$239
Bellingham
Bellingham1 stop$226
Pullman
Pullman1 stop$329
Wenatchee
Wenatchee1 stop$358
Walla Walla
Walla Walla1 stop$329
Yakima
Yakima1 stop$369
Seattle
Seattlenonstop$170
Spokane
Spokane1 stop$219
Pasco
Pasco1 stop$239
Bellingham
Bellingham1 stop$226
Pullman
Pullman1 stop$329
Wenatchee
Wenatchee1 stop$358
Walla Walla
Walla Walla1 stop$329
Yakima
Yakima1 stop$369

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

Tue, Sep 8 - Wed, Sep 16
Frontier Logo
7:45 am - 9:48 am
DEN
-
SEA
3h 03mnonstop
Frontier Logo
7:00 am - 10:51 am
SEA
-
DEN
2h 51mnonstop
$170Frontier
Thu, Aug 6 - Wed, Aug 26
Frontier Logo
7:00 am - 9:04 am
DEN
-
SEA
3h 04mnonstop
Frontier Logo
7:41 pm - 11:36 pm
SEA
-
DEN
2h 55mnonstop
$171Frontier
Tue, Aug 4 - Fri, Aug 7
United Airlines Logo
6:00 am - 12:07 pm
DEN
-
PDX
7h 07m
1 stop
United Airlines Logo
6:50 pm - 10:29 pm
PDX
-
DEN
2h 39mnonstop
$210United Airlines
Tue, Aug 11 - Tue, Aug 18
Alaska Airlines Logo
8:00 am - 11:53 am
DEN
-
PAE
4h 53m
1 stop
Alaska Airlines Logo
12:33 pm - 6:09 pm
PAE
-
DEN
4h 36m
1 stop
$215Alaska Airlines
Wed, Oct 28 - Wed, Nov 4
Alaska Airlines Logo
7:05 am - 11:39 am
DEN
-
GEG
5h 34m
1 stop
Alaska Airlines Logo
12:26 pm - 9:28 pm
GEG
-
DEN
8h 02m
1 stop
$219Alaska Airlines
Wed, Oct 28 - Wed, Nov 4
Southwest Logo
8:15 pm - 9:35 pm
DEN
-
GEG
2h 20mnonstop
Southwest Logo
6:40 am - 10:00 am
GEG
-
DEN
2h 20mnonstop
$239Southwest
Wed, Oct 28 - Wed, Nov 4
Southwest Logo
2:25 pm - 8:45 pm
DEN
-
GEG
7h 20m
1 stop
Southwest Logo
6:40 am - 10:00 am
GEG
-
DEN
2h 20mnonstop
$249Southwest
Wed, Sep 2 - Tue, Sep 8
Delta Logo
6:43 pm - 11:59 pm
DEN
-
GEG
6h 16m
1 stop
Delta Logo
10:50 am - 5:38 pm
GEG
-
DEN
5h 48m
1 stop
$257Delta
Thu, Aug 6 - Mon, Aug 10
United Airlines Logo
7:24 pm - 8:52 pm
DEN
-
PSC
2h 28mnonstop
United Airlines Logo
5:14 am - 8:36 am
PSC
-
DEN
2h 22mnonstop
$269United Airlines
Tue, Aug 11 - Wed, Aug 19
Delta Logo
6:20 am - 11:45 am
DEN
-
PSC
6h 25m
1 stop
Delta Logo
3:24 pm - 11:58 pm
PSC
-
DEN
7h 34m
1 stop
$289Delta
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.

How much is a round-trip flight from Denver to State of Washington?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to State of Washington departing in September.

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 5 days was to Everett, at $114 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 5 days was $195.

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 $283 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to Washington is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $355.

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 $301, 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 August, when tickets cost $206 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $499 and $398 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, Tuesday 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 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$91
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Denver to Spokane

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 $152 one-way - $281 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.
7.9
Alaska AirlinesOverall score based on 12507 reviews
7.0Food
7.0Entertainment
7.8Comfort
8.1Boarding
8.5Crew
Airline reviews

Flying into PAE was so easy because it’s baggage claim is quick and accesible. I had a car rental and the counter is inside the baggage claim area, very convenient.

10.0 ExcellentLinda, Jun 2026
LAX - PAE
Read more Alaska Airlines reviews

Flying into PAE was so easy because it’s baggage claim is quick and accesible. I had a car rental and the counter is inside the baggage claim area, very convenient.

Eva Airlines attendants were wonderful. I really enjoyed the hot meals. They always greeted me with a warm smile. I'm looking forward to flying back to the USA with them again!

Flight maintenance was on so that flight didn’t go able to fly out to Seattle and Inhad to get another flight,,

3 of the 4 legs of our trip the crews were awesome! 1 leg the trip attendants were rude & dismissive, didn't even greet us when boarding even though both myself & my husband said hello directly to them when we boarded.

Well organized boarding. Cabin crew were efficient and professional. Thoroughly enjoyed the flight.

The first flight was fine, great crew, but the plane was delayed 45 minutes to go to Seattle because of they were missing a ramp. That would make sense if the plane was actually at the gate. Not if we’re still waiting for a plane. After we landed we waited 30-45 minutes on the tarmac just to get off the plane. Alaska made me miss my connecting flight, wasting my time, and my money. I should honestly be reimbursed, but hey, when does the airline ever actually take accountability? Never.

Everyone from the ticket counter to the stewards were so accommodating and helpful

Gentleman at gate in Wichita was pleasant but lady was rude. First time I encountered that in Wichita. They are usually very pleasant. Flight attendant at the back of the plane was very nice.

For a 5hrs flight a simple meal should provided instead of snacks only

Missoula is a great airport. Desk and gate crews were very helpful and friendly

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

This planes staff was top tier. Everything went great and had a great flight home.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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

Information on your arrival and departure airports