Find cheap flights from Denver to Seattle/Tacoma Airport

DEN - SEA

Find cheap flights from Denver to Seattle/Tacoma Airport

Round-trip
Economy
Denver (DEN)
Seattle/Tacoma Intl
Fri 5/29
Fri 6/5
Any month
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Good to know

Low season

February Best time to beat the crowds with an average 19% drop in price.

High season

July Most popular time to fly with an average 25% increase in price.

Average price of a round-trip

$127 (avg. price over the last 2 weeks)

Good deal for a round-trip

$166 or less

When to book flights from Denver to Seattle/Tacoma Intl

Estimated round-trip price
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 $133 or less.
  • The cheapest flight from Denver to Seattle/Tacoma Airport was found 29 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is February.
  • Morning departure is around 5% cheaper 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 Denver to Seattle/Tacoma Airport flights

Are flight prices cheaper from Denver to Seattle/Tacoma Airport because of Coronavirus (COVID-19)?

How long does a flight from Denver to Seattle/Tacoma Airport take?

How many flights are there between Denver and Seattle/Tacoma Airport?

Which airlines provide the cheapest flights from Denver to Seattle/Tacoma Airport?

Do I need a passport to fly between Denver and Seattle/Tacoma Airport?

Which airlines fly most frequently between Denver and Seattle/Tacoma Airport?

What’s the cheapest day of the week to fly Denver to Seattle/Tacoma Airport?

Does Denver International Airport offer any amenities for pets or service animals?

Do any airlines have lounges for their customers at Denver International Airport?

Are there any shower facilities at Seattle-Tacoma International Airport?

Where can I rent a car at Seattle-Tacoma International Airport?

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

Book cheap flights from Denver to Seattle/Tacoma Airport (round-trip)

Airports
Origin
Denver
$87
only
$87
Destination
Seattle
$87
only
$87
Wed, Aug 5
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Wed, Aug 19
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 15 days
Based on null reviews
Wed, Jul 8
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Thu, Jul 9
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 2 days
Based on null reviews
Mon, Jul 13
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Mon, Jul 20
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 8 days
Based on null reviews
Tue, Jun 16
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 58m
Tue, Jul 28
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 43 days
Based on null reviews
Wed, Jun 10
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 58m
Mon, Jul 6
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 27 days
Based on null reviews
Wed, Jul 8
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
12h 58m
Thu, Jul 9
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 44m
Trip: 2 days
Based on null reviews
Thu, Jul 16
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 59m
Sat, Jul 18
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 3 days
Based on null reviews
Sat, Jun 13
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
8h 44m
Tue, Jun 23
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 45m
Trip: 11 days
Based on null reviews
Mon, Jun 8
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 14m
Wed, Jun 10
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 50m
Trip: 3 days
Based on null reviews
Thu, Jul 2
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
3h 08m
Wed, Jul 8
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Trip: 7 days
Based on null reviews
Sat, Jul 4
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 59m
Mon, Jul 6
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 3 days
Based on null reviews
Thu, Jul 16
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 36m
Sat, Jul 18
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Trip: 3 days
Based on null reviews
Wed, Jun 10
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
8h 44m
Wed, Jun 17
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 50m
Trip: 8 days
Based on null reviews
Mon, Jun 29
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
3h 08m
Wed, Jul 15
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Trip: 17 days
Based on null reviews
Wed, Aug 5
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
12h 58m
Mon, Aug 17
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 40m
Trip: 13 days
Based on null reviews
Mon, Jun 29
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
3h 08m
Thu, Jul 9
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
5h 58m
Trip: 11 days
Based on null reviews
Tue, Aug 25
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Mon, Aug 31
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 7 days
Based on null reviews
Fri, Jun 12
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 58m
Fri, Jun 19
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 45m
Trip: 8 days
Based on null reviews
Sun, Aug 2
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Wed, Aug 19
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
14h 51m
Trip: 18 days
Based on null reviews
Thu, Aug 20
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 36m
Thu, Aug 27
SEA
Seattle/Tacoma Airport
DEN
Denver Airport
2h 51m
Trip: 8 days
Based on null reviews
Show more results

Book cheap flights from Denver to Seattle/Tacoma Airport (one-way)

Airports
Origin
Denver
$44
only
$44
Destination
Seattle
$44
only
$44
Tue, Jul 14
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 36m
Based on null reviews
Sun, Jul 19
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 27m
Based on null reviews
Fri, Jul 17
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 36m
Based on null reviews
Tue, Jul 21
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 36m
Based on null reviews
Thu, Jun 18
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 07m
Based on null reviews
Tue, Jun 9
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
21h 29m
Based on null reviews
Wed, Jun 10
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
8h 44m
Based on null reviews
Fri, Jul 10
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 36m
Based on null reviews
Wed, Jul 8
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
27h 25m
Based on null reviews
Mon, Jul 20
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
14h 46m
Based on null reviews
Fri, Jul 17
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
13h 59m
Based on null reviews
Wed, Jul 22
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
2h 52m
Based on null reviews
Fri, Jun 12
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
26h 29m
Based on null reviews
Fri, Jun 12
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
26h 29m
Based on null reviews
Tue, Jul 21
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
20h 49m
Based on null reviews
Fri, Jun 12
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
8h 35m
Based on null reviews
Fri, Jun 19
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
16h 07m
Based on null reviews
Sun, Jun 21
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
21h 15m
Based on null reviews
Fri, Jun 12
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
7h 14m
Based on null reviews
Wed, Jun 3
DEN
Denver Airport
SEA
Seattle/Tacoma Airport
5h 28m
Based on null reviews
Show more results

Top airlines flying Denver Intl to Seattle/Tacoma Intl

Scores according to KAYAK customer reviews

8.0
Delta
Overall score based on 28,352 reviews
8.2
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews
Read more about Delta
*
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.

^
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.
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