Find cheap flights from Washington to Denver

DEN

Find cheap flights from Washington to Denver

Round-trip
Economy
Washington (WAS)
Denver Intl
Sat 7/4
Sat 7/11
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Denver

Good to know

Low season

February Best time to beat the crowds with an average 4% drop in price.

High season

December Most popular time to fly with an average 8% increase in price.

Average price of a round-trip

$270 (avg. price over the last 2 weeks)

Good deal for a round-trip

$119 or less

FAQs for booking Washington to Denver flights

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Top 5 airlines serving Washington to Denver Intl

Scores according to KAYAK customer reviews

8.7
Korean Air
Overall score based on 4,928 reviews
8.8
Boarding
8.6
Comfort
9.1
Crew
8.6
Entertainment
8.5
Food
Airline reviews
Read more about Korean Air

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

Airports
Origin
Seattle
$88
only
$88
Everett
$161
only
$161
Spokane
$186
only
$186
Destination
Denver
$88
only
$88
Wed, Aug 19
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Mon, Aug 24
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
12h 58m
Trip: 6 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 17m
Sat, Aug 8
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 55m
Trip: 5 days
Based on null reviews
Wed, Aug 5
PAE
Everett Paine Field
DEN
Denver Airport
2h 52m
Sat, Aug 8
DEN
Denver Airport
PAE
Everett Paine Field
3h 05m
Trip: 4 days
Based on null reviews
Fri, Aug 21
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Sun, Aug 23
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
12h 58m
Trip: 3 days
Based on null reviews
Fri, Jul 17
GEG
Spokane Airport
DEN
Denver Airport
7h 34m
Mon, Jul 20
DEN
Denver Airport
GEG
Spokane Airport
4h 41m
Trip: 4 days
Based on null reviews
Fri, Aug 28
PAE
Everett Paine Field
DEN
Denver Airport
2h 50m
Sun, Aug 30
DEN
Denver Airport
PAE
Everett Paine Field
3h 04m
Trip: 3 days
Based on null reviews
Wed, Aug 5
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Mon, Aug 10
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
3h 06m
Trip: 6 days
Based on null reviews
Wed, Sep 23
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 44m
Tue, Sep 29
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
5h 22m
Trip: 7 days
Based on null reviews
Wed, Jul 29
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 42m
Wed, Aug 12
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
9h 43m
Trip: 15 days
Based on null reviews
Mon, Aug 17
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Tue, Aug 25
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
12h 58m
Trip: 9 days
Based on null reviews
Fri, Sep 18
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 32m
Wed, Sep 23
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
5h 22m
Trip: 6 days
Based on null reviews
Sat, Aug 15
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Sat, Aug 29
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Trip: 15 days
Based on null reviews
Fri, Aug 14
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 40m
Sat, Aug 22
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Trip: 9 days
Based on null reviews
Fri, Sep 25
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 31m
Tue, Sep 29
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
5h 22m
Trip: 5 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 17m
Sun, Aug 9
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
12h 58m
Trip: 6 days
Based on null reviews
Wed, Jul 8
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 42m
Mon, Jul 13
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 54m
Trip: 6 days
Based on null reviews
Sat, Jul 18
GEG
Spokane Airport
DEN
Denver Airport
7h 34m
Sat, Jul 25
DEN
Denver Airport
GEG
Spokane Airport
4h 47m
Trip: 8 days
Based on null reviews
Wed, Sep 23
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 44m
Mon, Sep 28
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
9h 14m
Trip: 6 days
Based on null reviews
Tue, Jul 7
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 42m
Sun, Jul 19
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 54m
Trip: 13 days
Based on null reviews
Wed, Aug 19
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Sun, Aug 23
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
12h 58m
Trip: 5 days
Based on null reviews

Book cheap flights from Washington to Denver (one-way)

Airports
Origin
Seattle
$45
only
$45
Everett
$84
only
$84
Spokane
$93
only
$93
Bellingham
$88
only
$88
Destination
Denver
$45
only
$45
Fri, Sep 11
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
13h 14m
Based on null reviews
Mon, Aug 10
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
12h 18m
Based on null reviews
Fri, Jul 24
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 29m
Based on null reviews
Mon, Aug 31
PAE
Everett Paine Field
DEN
Denver Airport
2h 50m
Based on null reviews
Sat, Sep 12
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 44m
Based on null reviews
Tue, Sep 1
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
27h 41m
Based on null reviews
Fri, Aug 7
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
6h 34m
Based on null reviews
Mon, Aug 10
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Based on null reviews
Sun, Aug 2
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
24h 31m
Based on null reviews
Fri, Jul 24
BLI
Bellingham
DEN
Denver Airport
8h 09m
Based on null reviews
Wed, Jul 15
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 36m
Based on null reviews
Tue, Jul 21
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
22h 27m
Based on null reviews
Mon, Jul 13
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
11h 42m
Based on null reviews
Sun, Jul 12
GEG
Spokane Airport
DEN
Denver Airport
5h 10m
Based on null reviews
Thu, Jul 9
GEG
Spokane Airport
DEN
Denver Airport
5h 10m
Based on null reviews
Sun, Aug 16
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 36m
Based on null reviews
Tue, Jul 14
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
11h 42m
Based on null reviews
Wed, Jul 22
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
8h 12m
Based on null reviews
Tue, Sep 1
PAE
Everett Paine Field
DEN
Denver Airport
2h 50m
Based on null reviews
Sat, Jun 27
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 39m
Based on null reviews
*
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,
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