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

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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
6%
expected price increase
Average Price:
$779
(avg. price over the last 2 weeks)
Good Deal:
$425
or less (round trip)

When to Book Flights from Washington to Denver International

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 $424 or less.
The cheapest flight from Washington to Denver International was found 23 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 14% 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

FAQs for Booking Washington to Denver International Flights

How long does a flight from Washington to Denver International take?
An average nonstop flight takes 3h 46m, covering a distance of 1472 miles.
How many flights are there between Washington and Denver International?
There are 547 (nonstop) flights between Washington and Denver International per week, averaging 80 per day.
Which airlines provide the cheapest flights from Washington to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on United ($139), Frontier ($139) and Multiple Airlines ($139).
Do I need a passport to fly between Washington and Denver International?
No.
Which airlines fly most frequently between Washington and Denver International?
United (27 times daily), Southwest (17 times daily), Brussels Airlines (8 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Washington to Denver International?
For Washington to Denver International, Wednesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Denver International back to Washington, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

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

Airports
Origin
Washington
$139
only
$139
$153
only
$153
Destination
Denver
$139
only
$139
Wed, Mar 14
IAD
DEN
3h 57m
Tue, Mar 20
DEN
IAD
3h 13m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 122 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
DEN
Excellent 10.0

Everything

Nothing

IAD
DEN
Okay 4.0

Never made it on that flight

IAD
DEN
Good 7.6

The boarding procedure, and flight were completely uneventful. Flight attendants were nice. Slept through the snack if there was one offered.

Seatback entertainment by directv is getting a little old at this point. I didn't test it but I believe you can watch content on demand on your own device instead but it's hard to keep the seat back screen turned off. Be weary of tight international to domestic connections at IAD. I had an hour and a half between flights and made it to the gate when they had called group 5 for boarding. This is with Global Entry, TSA Pre-check and priority tags on my bags. I'm sure many others without the above were not so lucky.

IAD
DEN
Excellent 8.0

I wish it was always this easy.

I wish the seats and leg room could be a little more generous for those of us who don't fly first class.

IAD
DEN
Mediocre 3.3

Not much. We did arrive alive, which is the best part of it.

Late, very late without any explanation. Only one food service in flight.

Mon, Apr 16
IAD
DEN
3h 58m
Tue, Apr 24
DEN
IAD
3h 20m
Trip: 9 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 110 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
DEN
Mediocre 2.0

Terrible service, unprofessional, impractical and unreasonable airline that should never be suggested.

IAD
DEN
Mediocre 2.3

Price of tickets

Flight 4 hours late missed connecting flight in Denver could not get out for two days due to overbooking and vacation would be over and promises refund and now fighting to get that back! Plus I have filled this survey out 3 times and you have not received it yet!

IAD
DEN
Okay 4.0

The crew and their good nature under difficult circumstances were the only bright spot in an otherwise very disappointing experience.

Unacceptable to have to pay $45 for a carry-on, especially with no advance warning about this charge. Also insulting that water was the only free refreshment, with charges for everything else. The 3-hour delay was in part due to bad weather, but at least 1 hour was due to taxiing out, then holding for recalculating the route, then returning to the gate where it took an additional 30 minutes for the fuel truck to arrive.

IAD
DEN
Mediocre 2.0

Delays from weather are unavoidable, I know. But an eight our delay with no connecting flights for 24 hours? I'm good. Ended up booking a delta flight to get to my destination. Best part? I still haven't left yet. I was supposed to land thirty minutes ago at my final destination.

IAD
DEN
Mediocre 2.0

Nothing!

6hour delay, poor customer service,

Tue, Apr 17
IAD
DEN
3h 46m
Tue, Apr 24
DEN
IAD
3h 20m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
DCA
DEN
7h 01m
Tue, Mar 20
DEN
DCA
7h 01m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
JFK
MAD
Okay 4.0

Very old plane. No personal entertainment. Very basic service.

MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

DFW
DEN
Excellent 10.0

Easy and quick boarding. Excellwnt service in first class. Comfortable ride.

Nothing. Excellent travel experience.

DFW
SAT
Okay 4.0

It was short

Completely full plane. Ridiculously tight seat pitch. Overhead bins full. 45-minute delay for a dead-heading flight crew. Long wait for checked baggage. No beverage service because of turbulence. Flight crew out of position is a management problem, don't make it an inconvenience for a 737 full of paying passengers!

ORD
MCO
Mediocre 2.6

Horribly made me cancel flight because of 1min after 30 min cut off for boarding pass. Sat at the front desk for 29 minute arguing until my plane left.

Mon, Mar 19
IAD
DEN
3h 57m
Tue, Mar 20
DEN
IAD
3h 13m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 122 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
DEN
Excellent 10.0

Everything

Nothing

IAD
DEN
Excellent 10.0

Arrived almost an hour early which was great.

IAD
DEN
Good 6.0

I made it safely to my destination

I have been flying Lufthansa for over 15 years and the service is steadily declining. It started with issues during online check-in, a delay in Frankfurt which resulted in a very tight connection. I had to leave my bags behind to make it and the ground personell was of zero help. Oh, and premier silver status is good for nothing on Lufthansa. Thanks StarAlliance.

IAD
DEN
Excellent 8.0

Pilot made up for a late departure & we arrived in Denver a few minutes early. Skies were abut rough for a short time.

IAD
DEN
Excellent 8.0

I wish it was always this easy.

I wish the seats and leg room could be a little more generous for those of us who don't fly first class.

Tue, Apr 17
IAD
DEN
3h 59m
Tue, Apr 24
DEN
IAD
3h 20m
Trip: 8 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 110 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
DEN
Mediocre 2.0

All of the unexpected baggage fees ($40 for a carry on bag? Really?) and fees if you wanted to pick your seat. You even had to pay for snacks and drinks that are always complimentary! And I have never sat in more uncomfortable airplane seats (they didn't recline AT ALL). Plus could they have made a smaller seat tray? Frontier is a joke of an airline

IAD
DEN
Good 6.0

Better seat than last time still could feel my extremities apon arrival

4 buck$ for a club soda 38 $ per bag

IAD
DEN
Mediocre 2.6

The flight was delayed for 7 hours, and the airline took almost 4 hours to even tell us what our options were for connecting flights.

IAD
DEN
Mediocre 2.0

Delays from weather are unavoidable, I know. But an eight our delay with no connecting flights for 24 hours? I'm good. Ended up booking a delta flight to get to my destination. Best part? I still haven't left yet. I was supposed to land thirty minutes ago at my final destination.

IAD
DEN
Mediocre 2.0

Terrible service, unprofessional, impractical and unreasonable airline that should never be suggested.

Wed, Apr 18
IAD
DEN
3h 58m
Wed, Apr 25
DEN
IAD
3h 17m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 19
IAD
DEN
3h 57m
Tue, Mar 20
DEN
IAD
3h 13m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 122 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
DEN
Good 7.2

Boarding at Dulles was stupid. The line for 1st class and Premier was against the wall, so these passengers had to fight their way through the lines for passengers in sections 3,4,5 just to get to their line. It would make more sense to have groups 1 & 2 in lines which face the door, and keep the lines for 3,4,5 as they are--that is, parallel to the wall. Or, have the lines in the opposite order, so that 1&2 are closest to the concourse, and 5 is next to the wall I actually felt sorry for these 'privileged' passengers who had to fight their way through the other boarding lines just to board when their section was called

IAD
DEN
Mediocre 3.6

Well, the plane didn't crash, so that was nice. The plane was clean and the newer 737-900s are pretty decent.

Every time I fly United, I pretty much feel like it is an honor on the level of being knighted to get the privilege to fly with this airline. Thank you so much for being willing to take my money in exchange for a service, United. Bless you. I'm sure if you spend $10k + a year with them, they'll happily massage your feet as you ride along, but anyone else seems to be each flight attendant's personal enemy that they must frustrate as often as possible. Also, thank you, United, you beautiful prom queen you, for changing my seat from a window to a middle because it pleased you. It honors me to be your jest.

IAD
DEN
Excellent 10.0

Arrived almost an hour early which was great.

IAD
DEN
Mediocre 3.3

Not much. We did arrive alive, which is the best part of it.

Late, very late without any explanation. Only one food service in flight.

IAD
DEN
Excellent 9.0

Your seating was spacious!

The unfriendliness of the crew.

Wed, Apr 18
IAD
DEN
3h 58m
Tue, Apr 24
DEN
IAD
3h 20m
Trip: 7 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 110 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
DEN
Mediocre 2.0

All of the unexpected baggage fees ($40 for a carry on bag? Really?) and fees if you wanted to pick your seat. You even had to pay for snacks and drinks that are always complimentary! And I have never sat in more uncomfortable airplane seats (they didn't recline AT ALL). Plus could they have made a smaller seat tray? Frontier is a joke of an airline

IAD
DEN
Mediocre 2.0

Nothing!

6hour delay, poor customer service,

IAD
DEN
Okay 4.5

Firswt time I have had to pay a fee for carry-on! Also first time I paid more than $30 for a regular size and weight checked bag!

IAD
DEN
Okay 4.0

The crew and their good nature under difficult circumstances were the only bright spot in an otherwise very disappointing experience.

Unacceptable to have to pay $45 for a carry-on, especially with no advance warning about this charge. Also insulting that water was the only free refreshment, with charges for everything else. The 3-hour delay was in part due to bad weather, but at least 1 hour was due to taxiing out, then holding for recalculating the route, then returning to the gate where it took an additional 30 minutes for the fuel truck to arrive.

IAD
DEN
Excellent 9.0

Very organized boarding, smooth flight and got in 40 minutes early.

Sure they make you pay for everything - but that's to be expected from Frontier.

Mon, Apr 23
IAD
DEN
3h 58m
Wed, May 2
DEN
IAD
3h 17m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 15
DCA
DEN
5h 35m
Wed, Apr 18
DEN
DCA
5h 31m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

LAX
CLT
Mediocre 2.6

I got there safely.

I will never fly American Airlines again. From the moment I checked in with the ticket agent to getting off the plane it was a disaster. The ticket agent was rude, hostile, and dismissive. Employees walked through the line at security forcing everyone to consolidate their belongings to one bag. I had a large wallet in my hand and was told I had to step out of line to put it in my backpack. They only allow you one bag to carry on without paying extra. At the time of boarding they announced that the overhead storage was full so even those that paid extra were still forced to check their bags. The plane was dirty, the service was slow, overall just gross. They don’t have WiFi or in flight entertainment so I paid the $20 to purchase the WiFi. It was worthless. I couldn’t stream anything, even music kept stopping to buffer. I understand it will be slower then on ground WiFi, but it was impossible to watch anything and a complete waste of money.

DFW
SAT
Okay 4.0

It was short

Completely full plane. Ridiculously tight seat pitch. Overhead bins full. 45-minute delay for a dead-heading flight crew. Long wait for checked baggage. No beverage service because of turbulence. Flight crew out of position is a management problem, don't make it an inconvenience for a 737 full of paying passengers!

PHL
AMS
Okay 4.6

Fo

JFK
MAD
Okay 4.0

Very old plane. No personal entertainment. Very basic service.

Tue, Apr 3
IAD
DEN
3h 57m
Wed, Apr 4
DEN
IAD
3h 13m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 122 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
DEN
Good 7.6

The boarding procedure, and flight were completely uneventful. Flight attendants were nice. Slept through the snack if there was one offered.

Seatback entertainment by directv is getting a little old at this point. I didn't test it but I believe you can watch content on demand on your own device instead but it's hard to keep the seat back screen turned off. Be weary of tight international to domestic connections at IAD. I had an hour and a half between flights and made it to the gate when they had called group 5 for boarding. This is with Global Entry, TSA Pre-check and priority tags on my bags. I'm sure many others without the above were not so lucky.

IAD
DEN
Good 6.0

I made it safely to my destination

I have been flying Lufthansa for over 15 years and the service is steadily declining. It started with issues during online check-in, a delay in Frankfurt which resulted in a very tight connection. I had to leave my bags behind to make it and the ground personell was of zero help. Oh, and premier silver status is good for nothing on Lufthansa. Thanks StarAlliance.

IAD
DEN
Okay 4.0

Never made it on that flight

IAD
DEN
Excellent 8.0

Pilot made up for a late departure & we arrived in Denver a few minutes early. Skies were abut rough for a short time.

IAD
DEN
Mediocre 3.3

Not much. We did arrive alive, which is the best part of it.

Late, very late without any explanation. Only one food service in flight.

Mon, Apr 23
IAD
DEN
3h 58m
Tue, May 1
DEN
IAD
3h 17m
Trip: 9 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 110 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
DEN
Okay 4.0

The crew and their good nature under difficult circumstances were the only bright spot in an otherwise very disappointing experience.

Unacceptable to have to pay $45 for a carry-on, especially with no advance warning about this charge. Also insulting that water was the only free refreshment, with charges for everything else. The 3-hour delay was in part due to bad weather, but at least 1 hour was due to taxiing out, then holding for recalculating the route, then returning to the gate where it took an additional 30 minutes for the fuel truck to arrive.

IAD
DEN
Mediocre 2.3

Price of tickets

Flight 4 hours late missed connecting flight in Denver could not get out for two days due to overbooking and vacation would be over and promises refund and now fighting to get that back! Plus I have filled this survey out 3 times and you have not received it yet!

IAD
DEN
Mediocre 2.6

The flight was delayed for 7 hours, and the airline took almost 4 hours to even tell us what our options were for connecting flights.

IAD
DEN
Good 7.0

Flight was delayed over 5 hours. I missed most of the meeting I was attending for the day.

IAD
DEN
Mediocre 2.0

Delays from weather are unavoidable, I know. But an eight our delay with no connecting flights for 24 hours? I'm good. Ended up booking a delta flight to get to my destination. Best part? I still haven't left yet. I was supposed to land thirty minutes ago at my final destination.

Mon, Apr 30
IAD
DEN
3h 46m
Mon, May 7
DEN
IAD
3h 17m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 24
DCA
DEN
8h 08m
Wed, Apr 25
DEN
DCA
5h 31m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PHL
AMS
Okay 4.6

Fo

BWI
CLT
Mediocre 3.0

One of the flight attendants was nice.

AA is now trying to save money (presumably) by doing like Delta: forcing half of us to connect in Charlotte. Unfortunately, the Charlotte airport is not ready to accommodate so many people. The airport looks like it is being renovated, which is fine, but there is no tape/cones to mark off the renovated areas from the walkways. You literally walk through dirt and construction sites. I didn't even think that was legal in the US?! Anyway, maybe it will be worth it once the renovations are complete, especially if AA is going to use it as a hub.

JFK
MAD
Okay 4.0

Very old plane. No personal entertainment. Very basic service.

DFW
DEN
Excellent 10.0

Easy and quick boarding. Excellwnt service in first class. Comfortable ride.

Nothing. Excellent travel experience.

DEN
ORD
Good 6.4

I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!

Tue, Apr 3
IAD
DEN
3h 57m
Wed, Apr 4
DEN
IAD
3h 13m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 122 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
DEN
Excellent 9.0

Your seating was spacious!

The unfriendliness of the crew.

IAD
DEN
Mediocre 3.3

Not much. We did arrive alive, which is the best part of it.

Late, very late without any explanation. Only one food service in flight.

IAD
DEN
Excellent 10.0

Everything

Nothing

IAD
DEN
Good 6.0

I made it safely to my destination

I have been flying Lufthansa for over 15 years and the service is steadily declining. It started with issues during online check-in, a delay in Frankfurt which resulted in a very tight connection. I had to leave my bags behind to make it and the ground personell was of zero help. Oh, and premier silver status is good for nothing on Lufthansa. Thanks StarAlliance.

IAD
DEN
Good 6.0

Flight was delayed for a hour and half because of equipment. Credit goes to United for promptly putting use on another flight that just came in from Denver. All in a it was a long day.

Mon, Apr 23
IAD
DEN
3h 58m
Tue, May 1
DEN
IAD
3h 17m
Trip: 9 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 110 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
DEN
Mediocre 2.3

Price of tickets

Flight 4 hours late missed connecting flight in Denver could not get out for two days due to overbooking and vacation would be over and promises refund and now fighting to get that back! Plus I have filled this survey out 3 times and you have not received it yet!

IAD
DEN
Mediocre 2.0

All of the unexpected baggage fees ($40 for a carry on bag? Really?) and fees if you wanted to pick your seat. You even had to pay for snacks and drinks that are always complimentary! And I have never sat in more uncomfortable airplane seats (they didn't recline AT ALL). Plus could they have made a smaller seat tray? Frontier is a joke of an airline

IAD
DEN
Okay 4.0

The crew and their good nature under difficult circumstances were the only bright spot in an otherwise very disappointing experience.

Unacceptable to have to pay $45 for a carry-on, especially with no advance warning about this charge. Also insulting that water was the only free refreshment, with charges for everything else. The 3-hour delay was in part due to bad weather, but at least 1 hour was due to taxiing out, then holding for recalculating the route, then returning to the gate where it took an additional 30 minutes for the fuel truck to arrive.

IAD
DEN
Mediocre 2.0

Nothing!

6hour delay, poor customer service,

IAD
DEN
Good 7.0

Flight was delayed over 5 hours. I missed most of the meeting I was attending for the day.

Tue, May 1
IAD
DEN
3h 46m
Mon, May 7
DEN
IAD
3h 17m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 7
DCA
DEN
5h 53m
Thu, May 31
DEN
DCA
6h 49m
Trip: 25 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
MIA
Mediocre 2.0

Couldn’t sleep because the AC wasnt working. Most miserable flight my life

The AC wasn’t working it was the most miserable flight ever

JFK
MAD
Okay 4.0

Very old plane. No personal entertainment. Very basic service.

DEN
ORD
Good 6.4

I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!

LAX
CLT
Mediocre 2.6

I got there safely.

I will never fly American Airlines again. From the moment I checked in with the ticket agent to getting off the plane it was a disaster. The ticket agent was rude, hostile, and dismissive. Employees walked through the line at security forcing everyone to consolidate their belongings to one bag. I had a large wallet in my hand and was told I had to step out of line to put it in my backpack. They only allow you one bag to carry on without paying extra. At the time of boarding they announced that the overhead storage was full so even those that paid extra were still forced to check their bags. The plane was dirty, the service was slow, overall just gross. They don’t have WiFi or in flight entertainment so I paid the $20 to purchase the WiFi. It was worthless. I couldn’t stream anything, even music kept stopping to buffer. I understand it will be slower then on ground WiFi, but it was impossible to watch anything and a complete waste of money.

PHL
AMS
Okay 4.6

Fo

Tue, Apr 24
IAD
DEN
3h 59m
Mon, May 7
DEN
IAD
3h 17m
Trip: 14 days
4.8OkayShow reviews
Overall 4.8 Okay
Based on 110 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
DEN
Excellent 8.0

Comfort

Don't have food free inside the fly

IAD
DEN
Mediocre 2.0

Nothing!

6hour delay, poor customer service,

IAD
DEN
Excellent 9.0

Very organized boarding, smooth flight and got in 40 minutes early.

Sure they make you pay for everything - but that's to be expected from Frontier.

IAD
DEN
Mediocre 2.3

Price of tickets

Flight 4 hours late missed connecting flight in Denver could not get out for two days due to overbooking and vacation would be over and promises refund and now fighting to get that back! Plus I have filled this survey out 3 times and you have not received it yet!

IAD
DEN
Mediocre 2.0

Terrible service, unprofessional, impractical and unreasonable airline that should never be suggested.

Show more results

Washington to Denver International Flight Information

Avg. Flight Duration 3h 36m
Flights Arrive in Denver International
Flights Depart from Washington
Flight Price $139
Distance 1472 miles
Airlines United, Frontier, American Airlines
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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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.