Find Cheap Flights from Denver International to Washington (DEN - WAS)

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Wed 1/17
Wed 1/24
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Good to Know

Low Season:
October
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
12%
expected price increase
Average Price:
$309
(avg. price over the last 2 weeks)
Good Deal:
$214
or less (round trip)

When to Book Flights from Denver International to Washington

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $214 or less.
The cheapest flight from Denver International to Washington was found 24 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Denver International to Washington Flights

How long does a flight from Denver International to Washington take?
An average nonstop flight takes 3h 04m, covering a distance of 1472 miles.
How many flights are there between Denver International and Washington?
There are 357 (nonstop) flights between Denver International and Washington per week, averaging 53 per day.
Which airlines provide the cheapest flights from Denver International to Washington?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($108), Frontier ($137) and United ($139).
Do I need a passport to fly between Denver International and Washington?
No.
Which airlines fly most frequently between Denver International and Washington?
United (21 times daily), Southwest (10 times daily), Brussels Airlines (4 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Denver International to Washington?
For Denver International to Washington, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington back to Denver International, the best deals are generally found on Sunday, with Thursday being the most expensive.

Book cheap flights from Denver International to Washington (round-trip)

Airports
Origin
Denver
$108
only
$108
Destination
Washington
$108
only
$108
$137
only
$137
Wed, Apr 4
DEN
IAD
3h 05m
Sun, Apr 8
IAD
DEN
3h 58m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 6
DEN
DCA
3h 25m
Wed, Feb 7
DCA
DEN
4h 10m
Trip: 2 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 624 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
DCA
Good 6.6

Paying for beverages. Leg room. I am 5’10” tall.

DEN
DCA
Good 6.0

Made good time, crew pleasant, plane clean.

Seats have no recline function, no extra head support, no entertainment of any sort. Seating choice ($13) and baggage ($38) over-priced. No snack or comp beverage except at extra cost. Original fare not that much cheaper.

DEN
DCA
Mediocre 3.0

The crew.

Everything.

DEN
DCA
Good 6.0

Crew was nice and efficient. Departure and arrival were on time.

Seats are incredibly uncomfortable. Not even a bag of pretzels or a soda included in the price of the flight.

DEN
DCA
Okay 4.3

Flight arrived safe ad sound.

Delay of 2hrs. Fist you pay for a flight and then must pay for a seat to sit in. Next passengers will pay to use the in flight restroom.

Thu, Feb 15
DEN
IAD
3h 15m
Tue, Feb 20
IAD
DEN
3h 53m
Trip: 6 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 99 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAD
Good 6.0

Boarding delayed for cleaning. Then sat on tarmac for another 20 min

DEN
IAD
Okay 5.6

The plane was over two hours late! They decided to use a plane from Tokyo, so we got to wait for customs. I had just lost my mother and all I wanted to was get home. They kept saying soon. It doesn't seem efficient to use an international plane for domestic flights!

DEN
IAD
Okay 4.3

Staff was friendly

United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit.

DEN
IAD
Good 7.3

- The option to watch TV - The leg room

- No food options provided

DEN
IAD
Excellent 10.0

When I was flying red eye they made it really easy to sleep. Lots of room excellent.

I was too drunk and my ears felt like they were bleeding but the staff was really nice

Thu, Apr 5
DEN
IAD
3h 12m
Sun, Apr 8
IAD
DEN
3h 58m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 14
DEN
DCA
3h 22m
Tue, Mar 20
DCA
DEN
4h 12m
Trip: 7 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 624 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
DCA
Good 6.0

Made good time, crew pleasant, plane clean.

Seats have no recline function, no extra head support, no entertainment of any sort. Seating choice ($13) and baggage ($38) over-priced. No snack or comp beverage except at extra cost. Original fare not that much cheaper.

DEN
DCA
Mediocre 2.0

Never got on the flight because the first flight was cancelled

DEN
DCA
Okay 4.6

Seats are like riding in a sidecar of an old Harley without any room...guess you get what you pay for

DEN
DCA
Good 6.0

Crew was nice and efficient. Departure and arrival were on time.

Seats are incredibly uncomfortable. Not even a bag of pretzels or a soda included in the price of the flight.

DEN
DCA
Okay 5.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

Tue, Mar 6
DEN
IAD
3h 04m
Sat, Mar 10
IAD
DEN
3h 56m
Trip: 5 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 99 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAD
Excellent 8.6

Phone charger at every seat

Earphones for movie did not work

DEN
IAD
Okay 4.3

Staff was friendly

United has a system glitch and we were delayed. I got in around 1 am instead of 11 pm. I decide to order a glass of wine and since they don’t give receipts. I found out i was charged for 2 glasses instead of one. To top it off the co-worker i was traveling with didn’t get charged due to the inconvenience and delay. i travel a lot with United (higher status than him) and would have liked that offer (and not get charged one i didn’t order) being a mileage plus and credit card holder. I did go on line and ask for a credit and they did make it right and give me a credit.

DEN
IAD
Mediocre 2.0

Delayed flight due to "low air in tire" made me miss my connection to Iceland and ruined my very expensive vacation.

DEN
IAD
Okay 5.6

Adequate space in coach. Available wifi for a fee Friendly efficient floor air crew

No free entertainment - no music All entertainment required your own device. Snobby head flight attendant

DEN
IAD
Mediocre 2.6

I paid extra to sit beside my girlfriend and bring a full size carry-on then the flight required that some people check their carry-ons because of space limitations. I would like to be reimbursed for the additional fee I paid to not check my bags.

Tue, Apr 3
DEN
DCA
3h 23m
Wed, Apr 4
DCA
DEN
4h 12m
Trip: 2 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 624 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
DCA
Okay 5.0

The workers were really nice.

There's a fee on everything (carry on, snacks-peanuts, pretzels, pop, water), and the seat are uncomfortable and do not recline (it makes it hard to sleep). You get what you pay for. Tickets are cheap, but fees add up.

DEN
DCA
Mediocre 2.0

Never got on the flight because the first flight was cancelled

DEN
DCA
Okay 5.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

DEN
DCA
Excellent 8.0

Time management

Service

DEN
DCA
Good 6.0

Crew was nice and efficient. Departure and arrival were on time.

Seats are incredibly uncomfortable. Not even a bag of pretzels or a soda included in the price of the flight.

Tue, Jan 23
DEN
DCA
3h 25m
Tue, Jan 30
DCA
DEN
4h 11m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
DEN
IAD
3h 13m
Tue, Mar 20
IAD
DEN
4h 03m
Trip: 8 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 99 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAD
Okay 5.6

The plane was over two hours late! They decided to use a plane from Tokyo, so we got to wait for customs. I had just lost my mother and all I wanted to was get home. They kept saying soon. It doesn't seem efficient to use an international plane for domestic flights!

DEN
IAD
Mediocre 2.6

I paid extra to sit beside my girlfriend and bring a full size carry-on then the flight required that some people check their carry-ons because of space limitations. I would like to be reimbursed for the additional fee I paid to not check my bags.

DEN
IAD
Mediocre 2.0

Delayed flight due to "low air in tire" made me miss my connection to Iceland and ruined my very expensive vacation.

DEN
IAD
Good 7.3

- The option to watch TV - The leg room

- No food options provided

DEN
IAD
Okay 5.6

Adequate space in coach. Available wifi for a fee Friendly efficient floor air crew

No free entertainment - no music All entertainment required your own device. Snobby head flight attendant

Thu, Mar 22
DEN
DCA
5h 59m
Wed, Mar 28
DCA
DEN
7h 12m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27225 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PHX
PHL
Excellent 8.3

Actually assigned a middle seat, unable to change it but found that there was nobody else in that row!!!

See above

DFW
YYZ
Okay 4.6

Lucked out with extra legroom seat. Seat was broken though.

The whole customs process is a seemingly endless mess.

LGA
DFW
Excellent 10.0

Flight was on time, crew was friendly.

GDL
DFW
Good 6.3

Friendly staff

Food was terrible and the seats tight

PHL
LHR
Good 7.3

Range of entertainment options, one crew member was terrific

Comfort of bed, some crew members snarky, old aircraft

Tue, May 15
DEN
DCA
3h 23m
Tue, May 22
DCA
DEN
4h 13m
Trip: 8 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 624 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
DCA
Good 6.0

Made good time, crew pleasant, plane clean.

Seats have no recline function, no extra head support, no entertainment of any sort. Seating choice ($13) and baggage ($38) over-priced. No snack or comp beverage except at extra cost. Original fare not that much cheaper.

DEN
DCA
Good 6.6

Paying for beverages. Leg room. I am 5’10” tall.

DEN
DCA
Mediocre 2.0

Never got on the flight because the first flight was cancelled

DEN
DCA
Good 6.0

Small hard seats

DEN
DCA
Excellent 8.0

Time management

Service

Thu, Feb 1
DEN
DCA
3h 16m
Tue, Feb 6
DCA
DEN
4h 06m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 21
DEN
DCA
3h 25m
Mon, Feb 26
DCA
DEN
4h 11m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Feb 9
DEN
DCA
3h 25m
Sun, Feb 11
DCA
DEN
4h 06m
Trip: 3 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 624 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
DCA
Mediocre 2.0

Never got on the flight because the first flight was cancelled

DEN
DCA
Excellent 8.0

There is only so much you can do on airplane mode. I asked for hand sanitizer and the steward gave me some of his personal stuff. How awesome!

Lady next to me applying vice vapor rub every 20 mins

DEN
DCA
Excellent 8.0

Time management

Service

DEN
DCA
Good 6.0

Made good time, crew pleasant, plane clean.

Seats have no recline function, no extra head support, no entertainment of any sort. Seating choice ($13) and baggage ($38) over-priced. No snack or comp beverage except at extra cost. Original fare not that much cheaper.

DEN
DCA
Okay 4.6

Seats are like riding in a sidecar of an old Harley without any room...guess you get what you pay for

Mon, Mar 26
DEN
DCA
5h 24m
Mon, Apr 2
DCA
DEN
7h 04m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15207 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
DEN
SLC
Excellent 10.0

Delta is great

HOU
ATL
Excellent 10.0

Service

BOS
MKE
Excellent 10.0

Direct flight, on time, friendly crew, smooth flight

LAX
CUN
Mediocre 2.6

Terrible customer service both on the phone before the flight, but Especially from the gate agent. Wow she was really horrible.

The flight attendants on board were good! They helped get everything straight. Easily could have been handled by the incompetent gate agent. Wow.

SYR
JFK
Good 7.0

Nothing Special

Wed, Mar 28
DEN
IAD
3h 15m
Wed, Apr 11
IAD
DEN
3h 58m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 14
DEN
IAD
3h 17m
Tue, May 22
IAD
DEN
3h 57m
Trip: 9 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 164 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
IAD
Mediocre 3.3

Very little

Left my wallet on the plane and they would not help get it back to me Tiniest tray table I've ever seen before Everything costs money. Picking your seat, carryon, soda, snacks, etc.

DEN
IAD
Good 6.0

Seats do not recline unless you've purchased a first class ticket and leg room is quite limited, making an overnight flight very uncomfortable. Tray table is about 1/3 the size of most airplane tables. I asked at the ticketing counter if I was able to board with both my purse and small bag (both would easily fit under the seat together), and was told I'd be charged for a carry on, so I had to stuff my purse inside the personal bag to avoid a charge. Flight crew was polite but not overly friendly. Snacks and beverages are not complimentary (I didn't ask about water but it seems like there are mixed messages about whether that is complimentary or not based on other reviews). I have flown Frontier in the past so I was aware that seats and baggage cost extra, but prices seem higher than they had been in the past ($12 for the cheapest pre-selected seats, $36 for carry on). Only perk was that the flight was direct from DEN-IAD.

DEN
IAD
Mediocre 2.0

Nothing.

The ticket cost buys you the option to pay for a seat. To get a seat next to my wife, we paid $17 per seat that didn't recline (that is extra) and the seat themselves are hard plastic with a 2 mm thick pleather cover. Each bag was $45 and they charged for each carry on. Every drink including water was a fee...worst flight I have ever experienced. We paid for another airline on the return leg.

DEN
IAD
Good 6.0

Clean

You have pay for everything except water.

DEN
IAD
Good 6.5

Boarding and crew were as good as could be.

We were told to put carry on baggage underneath our crowded feet if we didn't pay for it. Those who paid were supposed to get the space above the seats. Boo hiss, Frontier.

Fri, Apr 20
DEN
IAD
3h 08m
Tue, Apr 24
IAD
DEN
3h 58m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jun 4
DEN
IAD
3h 17m
Mon, Jun 11
IAD
DEN
3h 57m
Trip: 8 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 164 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
IAD
Good 6.5

Boarding and crew were as good as could be.

We were told to put carry on baggage underneath our crowded feet if we didn't pay for it. Those who paid were supposed to get the space above the seats. Boo hiss, Frontier.

DEN
IAD
Mediocre 2.0

Nothing.

The flight was delayed due to a "captain switch" but upon arrival of the new captain, he stated he didn't know what the problem was and that he was called from reserve. While we waited during the delay, the Frontier staff openly mocked previous passengers, repeatedly cursed, sat in wheelchairs gossiping, ignored guest requests, and loudly discussed bowel movements. My fiancé wrote two complaints to the airline during our wait - none of which received a response. This airline is unprofessional and I will not fly it again.

DEN
IAD
Mediocre 2.0

Nothing.

The ticket cost buys you the option to pay for a seat. To get a seat next to my wife, we paid $17 per seat that didn't recline (that is extra) and the seat themselves are hard plastic with a 2 mm thick pleather cover. Each bag was $45 and they charged for each carry on. Every drink including water was a fee...worst flight I have ever experienced. We paid for another airline on the return leg.

DEN
IAD
Mediocre 3.6

I liked the fact that I can fly red eye.

I typically fly Southwest because of the free leg room, free 2 bags checked, and 2 free carry-ons. Frontier "fee's" flyers to death. I have to pay extea for leg room????!!! REALLY! I could see if i was 6'6" but I'm not. If Southwest ever offers red eye flights I'll never patronize Frontier or another airline again.

DEN
IAD
Good 6.0

Seats do not recline unless you've purchased a first class ticket and leg room is quite limited, making an overnight flight very uncomfortable. Tray table is about 1/3 the size of most airplane tables. I asked at the ticketing counter if I was able to board with both my purse and small bag (both would easily fit under the seat together), and was told I'd be charged for a carry on, so I had to stuff my purse inside the personal bag to avoid a charge. Flight crew was polite but not overly friendly. Snacks and beverages are not complimentary (I didn't ask about water but it seems like there are mixed messages about whether that is complimentary or not based on other reviews). I have flown Frontier in the past so I was aware that seats and baggage cost extra, but prices seem higher than they had been in the past ($12 for the cheapest pre-selected seats, $36 for carry on). Only perk was that the flight was direct from DEN-IAD.

Mon, Mar 26
DEN
IAD
3h 05m
Mon, Apr 2
IAD
DEN
3h 57m
Trip: 8 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 99 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAD
Mediocre 2.0

Missed my connection due to late flight arrival and had to fly out the next day.

DEN
IAD
Mediocre 2.6

I paid extra to sit beside my girlfriend and bring a full size carry-on then the flight required that some people check their carry-ons because of space limitations. I would like to be reimbursed for the additional fee I paid to not check my bags.

DEN
IAD
Mediocre 2.0

Delayed flight due to "low air in tire" made me miss my connection to Iceland and ruined my very expensive vacation.

DEN
IAD
Excellent 8.6

Phone charger at every seat

Earphones for movie did not work

DEN
IAD
Okay 5.6

Adequate space in coach. Available wifi for a fee Friendly efficient floor air crew

No free entertainment - no music All entertainment required your own device. Snobby head flight attendant

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.

Denver International to Washington Flight Information

Avg. Flight Duration 3h 39m
Flights Arrive in Washington
Flights Depart from Denver International
Flight Price $108
Distance 1472 miles
Airlines Frontier, United, American Airlines, Delta