Cheap Flight Tickets from Denver (DEN) to Seattle (SEA), Starting at $165

Good to Know: Cheapest and Fastest DEN - SEA Flights

Useful information for finding best airline tickets from Denver International to Seattle Tacoma International on your next trip.

Cheapest Round Trip Flight

$165

WN Southwest Airlines • 1 stop • 8h 35m

Nov 04 – Nov 09

The cheapest round trip flight from Denver to Seattle (DEN-SEA-DEN) is currently $165

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Cheapest Direct Flight

$335

DL Delta Airlines • nonstop • 5h 6m

Nov 04

The cheapest nonstop flight from Denver to Seattle (DEN-SEA) is currently $335

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Fastest Flight

4h 19m

The fastest nonstop flight from Denver to Seattle (DEN-SEA) takes 4h 19m

Top Airlines Flying from Denver to Seattle

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Denver (DEN) to Seattle (SEA)

Compare and book low fare round-trip air tickets from Denver to Seattle. Ideal for travelers with confirmed return itineraries.

Nov 04 - Nov 09, Economy
WN
Denver → Seattle
8h 35m
2:25 PM - 6:40 PM • 1 stop
WN
Denver → Seattle
8h 20m
2:35 PM - 8:35 PM • 1 stop
$165
Southwest Airlines
Nov 04 - Nov 09, Economy
F9
Denver → Seattle
35h 40m
1:05 PM - 9:45 AM • 1 stop
F9
Denver → Seattle
18h 55m
9:13 PM - 9:48 AM • 1 stop
$291
Frontier Airlines
Nov 04 - Nov 09, Economy
F9
Denver → Seattle
20h 1m
10:44 PM - 9:45 AM • 1 stop
F9
Denver → Seattle
4h 8m
4:27 PM - 8:15 PM • nonstop
$332
Frontier Airlines
Nov 04 - Nov 09, Economy
WN
Denver → Seattle
15h 5m
2:15 PM - 10:20 PM • 1 stop
WN
Denver → Seattle
3h 50m
6:15 AM - 9:45 AM • nonstop
$342
Southwest Airlines
Nov 04 - Nov 09, Economy
DL
Denver → Seattle
5h 6m
6:42 PM - 8:48 PM • nonstop
DL
Denver → Seattle
6h 50m
5:59 PM - 11:09 PM • 1 stop
$342
Delta Airlines
Nov 04 - Nov 09, Economy
UA
Denver → Seattle
5h 8m
9:07 PM - 11:15 PM • nonstop
F9
Denver → Seattle
4h 8m
4:27 PM - 8:15 PM • nonstop
$411
United Airlines

Fly from Denver to Seattle with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Denver to Seattle? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Denver to Seattle Flights

What are the airports in Denver?
DEN
What’s the most popular airline flying from DEN to SEA?
The most popular airline flying from Denver to Seattle are
Can I fly from DEN to SEA non-stop?
Yes, you can fly DEN to SEA non-stop on
Which airlines fly nonstop between Denver and Seattle?
The non-stop flights between Denver and Seattle are .
What’s the earliest departure time from DEN to SEA Airport?
The earliest flight leaves DEN at 7:03 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Denver to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DEN to SEA?
Read the fare rules of the Denver to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Denver and Seattle?
operate flights between Denver and Seattle
How long does a flight from Denver to Seattle take?
It takes approximately 3 hour to fly non-stop from DEN to SEA, which is 1024.03 miles by air.
Which airlines provide the cheapest flights from Denver (DEN) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from DEN were found on F9 : USD 291
Do I need a passport to fly between DEN and SEA?
No
What’s the latest departure time from DEN to SEA ?
The last flight leaves DEN at 10:44 pm

Denver (DEN) to Seattle (SEA): Airport Information

Origin Airport Denver International , Denver, US
Destination Airport Seattle Tacoma International , Seattle, US
Distance 1024 miles

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