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Find cheap flights from Denver to Washington from $45

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 5/19. 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
0 bags
Sun 5/26
Sun 6/2

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Best Washington Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Seattle
Seattlenonstop$68
Spokane
Spokane1 stop$235
Pasco
Pasco1 stop$238
Bellingham
Bellingham1 stop$306
Pullman
Pullman2 stops$432
Walla Walla
Walla Walla1 stop$304
Yakima
Yakima1 stop$392
Portland
Portlandnonstop$73

Good to know

Low season

January

High season

July

Cheapest flight

$45
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 28% increase in price.
Flight from Denver to Seattle

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 to Washington from Denver 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 to Washington with an airline and back to Denver 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 to Washington from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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 $108 one-way - $142 round-trip
  • Morning departure is around 24% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Denver to Washington

 
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
DeltaOverall score based on 10966 reviews
8.6crew
7.9comfort
8.2boarding
8.0entertainment
7.4food
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

Flight delayed about 2 hrs so it made it a VERY late night

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

This flight was supposed to land at 10:55 pm on January 14th. Instead, it landed at 3:20 am on Monday, January 15th, resulting in a completely lost day due to not going to bed until 5:00 am.

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Terrible. Flight was cancelled due to the weather in the east and sout east(florida). Did not get any compesation of any kind. According to them, it was not under their control so I lost all the money paid for the 2 fairs from Raleigh, NC to Orlando, Fl.

great flight. Pilot was communicative, flight attendants were excellent. Really nice experience except my tv didn’t work.

Overall, the flight was better than the flight I took to go to Florida, which had a bunch of problems. The crew is really nice and the plane was new so it had a small problem when we were on the runway, but the flight itself was great. They even made some time back up, which is always a good thing.

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

I had back trouble prior to my flight and everyone was great about helping me.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Everything was good except for deplaning in NY. Took way too long!!

Jet Blue keeps getting iit wrong. 4 hour mechanical delay followed by terrible boarding experience. This is my third horrific jet blue flight in 2024. I am going to try to avoid this loser in the sky

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

Too many fees (but that seems to apply to all airlines nowadays)

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Wheelchair assistance was not complete. The person left me at the departure gate without informing the groundstaff of my requirements. I had to walk to the departure counter to ask for help to reach the plane door. The crew informed me that in future they were not allowed to help passengers like me, senior citizen and Wheelchair passenger with placing their carry on bags in the overhead compartments!

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Seats are way too snug for my hip to knee ratio and the recline on the seat in front of me made my experience worst. My legs had no room at all. Not a plane for people 6 ft or over unless you fly first class.

Delayed for maintenance issue?? Should have been addressed before boarding. Put my bag on an earlier flight, but didn’t ask if I wanted to change to an earlier flight. Arrived to find my bag locked up and no agent to be found when I landed.

We learned certain countries (a few) require a notarized letter from an ex to give permission for children to travel to those countries with the other spouse together with birth certificates. To find this out one hour before flying—not good. Nowhere is it documented by the airlines though they require it. Make sure about all documentation required.

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

It was great. It was just a commuter so I splurged on first class and it was wonderful. Wish all seats were this spacious. Enjoyed it and will do it again.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

It was super hot. The flight attendant seemed forgetful and abrupt.

Left Denver late, then sat on tarmac 30 min after arrival

Everything was good, 20/30 minutes late waiting on a crew member. It’s hard to keep employees. Or serious employees I know. I remember one flight from Houston of Frontiers was almost 18 hours late. And another 4 hours late very poor. But I would rather be late and safe than the on the news. Thank you.

Bought seats on the flight and they were supposed to be 2 and a jumpseat. Plane clearly changed and it was a regular 3 seat row. Asked for a refund and was denied. If I wanted to sit next to someone else I wouldn't have bought the seats..

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

It’s a cheap airline and I wish if they had better seats.

Seats are cramped and uncomfortable. You have to pay for everything and it is very expensive.

For a busy travel season, everything was clearly marked, correct, and smooth. My favorite travel description is “UNEVENTFUL,” and this trip met the mark!

The flight and crew were fine. When we (several groups) arrived in Norfolk on Sunday we discovered our bags had not arrived. The staff at norfolk airport was less than helpful. Told us our bags wouldn't arrive until Thursday. When asked what happened they said it bags never made it on the plane and it happened all the time. When asked about reimbursement for replacement items the desk agent said we could try to submit receipts online, but they weren't sure we would be reimbursed. I understand this is a low cost airline, but this was really beyond poor customer service.

Frontier is a no-frills airlines were the focus is low cost. You get basic service so don't set your expectations high. Watch out thought because this airline, like a few others, will try to nickel and dime you.

Flight had mayor delay. The onboarding took forever and was poorly conducted. AC was not in it was very warm in the plane.

Book cheap flights from Denver to Washington

Recent round-trip flight deals

5/22Wed
nonstopFrontier
3h 03mDEN-SEA
5/27Mon
nonstopFrontier
3h 00mSEA-DEN
$81
5/10Fri
nonstopFrontier
3h 09mDEN-SEA
5/22Wed
nonstopFrontier
2h 52mSEA-DEN
$82
6/12Wed
nonstopDelta
3h 06mDEN-SEA
6/22Sat
nonstopDelta
2h 42mSEA-DEN
$188
6/7Fri
1 stopAlaska Airlines
5h 17mDEN-SEA
6/12Wed
nonstopAlaska Airlines
2h 47mSEA-DEN
$197
6/10Mon
1 stopAlaska Airlines
5h 17mDEN-SEA
6/15Sat
1 stopAlaska Airlines
6h 59mSEA-DEN
$198
6/14Fri
nonstopDelta
3h 06mDEN-SEA
6/22Sat
nonstopDelta
2h 42mSEA-DEN
$207
7/30Tue
nonstopUnited Airlines
2h 23mDEN-GEG
8/6Tue
nonstopUnited Airlines
2h 22mGEG-DEN
$247
5/31Fri
1 stopAmerican Airlines
12h 00mDEN-GEG
6/5Wed
1 stopAmerican Airlines
5h 41mGEG-DEN
$276
8/21Wed
1 stopAmerican Airlines
6h 21mDEN-GEG
8/27Tue
2 stopsAmerican Airlines
11h 52mGEG-DEN
$286
5/25Sat
nonstopUnited Airlines
2h 22mDEN-GEG
5/28Tue
nonstopUnited Airlines
2h 22mGEG-DEN
$303

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Recent one-way flight deals

5/19Sun
nonstopFrontier
3h 03mDEN-SEA
$45
6/15Sat
nonstopFrontier
3h 05mDEN-SEA
$48
5/25Sat
nonstopDelta
2h 57mDEN-SEA
$70
5/21Tue
nonstopDelta
2h 57mDEN-SEA
$89
6/10Mon
1 stopAlaska Airlines
5h 17mDEN-SEA
$93
8/6Tue
1 stopAmerican Airlines
6h 04mDEN-SEA
$98
5/1Wed
1 stopAmerican Airlines
9h 15mDEN-SEA
$131
5/30Thu
nonstopUnited Airlines
2h 22mDEN-GEG
$139
5/29Wed
2 stopsAlaska Airlines
7h 22mDEN-GEG
$147
5/27Mon
nonstopUnited Airlines
2h 22mDEN-GEG
$152

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Last minute flights from Denver to Washington

Last minute flight, train and bus deals

4/27Sat
nonstopFrontier
3h 10mDEN-SEA
5/7Tue
nonstopFrontier
2h 50mSEA-DEN
$133
5/1Wed
multi-stopFrontier
18h 32mDEN-SEA
5/4Sat
nonstopFrontier
2h 50mSEA-DEN
$134
4/27Sat
multi-stopAmerican Airlines
9h 15mDEN-SEA
4/30Tue
multi-stopAmerican Airlines
8h 24mSEA-DEN
$262
4/27Sat
nonstopAlaska Airlines
2h 57mDEN-SEA
5/4Sat
nonstopAlaska Airlines
2h 44mSEA-DEN
$277
4/29Mon
multi-stopAlaska Airlines
5h 12mDEN-SEA
5/5Sun
multi-stopAlaska Airlines
6h 47mSEA-DEN
$296
4/27Sat
multi-stopAmerican Airlines
9h 15mDEN-SEA
4/28Sun
multi-stopAmerican Airlines
5h 26mSEA-DEN
$304
4/30Tue
multi-stopUnited Airlines
8h 06mDEN-SEA
5/1Wed
multi-stopUnited Airlines
8h 40mSEA-DEN
$316
4/30Tue
multi-stopDelta
6h 00mDEN-PSC
5/1Wed
multi-stopDelta
4h 28mPSC-DEN
$356
4/30Tue
multi-stopDelta
5h 06mDEN-SEA
5/1Wed
multi-stopDelta
5h 24mSEA-DEN
$446
4/30Tue
multi-stopUnited Airlines
8h 28mDEN-SEA
5/3Fri
multi-stopUnited Airlines
7h 36mSEA-DEN
$629

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Denver - Washington Flights

Departure:

Denver (DEN)United States

Return flight deals:

Washington - Denver

Cabin classes:

$268
$340
$331
$69