Cheap Flight Tickets from Denver (DEN) to Seattle (SEA), Starting at $98

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 One way Flight

$501

F9 Frontier Airlines • 2 stops • 35h 7m

Sep 14

The cheapest one way flight from Denver to Seattle (DEN-SEA) is currently $501

🔍 Search Flights

Fastest Flight

13h 50m

The fastest nonstop flight from Denver to Seattle (DEN-SEA) takes 13h 50m

Top Airlines Flying from Denver to Seattle

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

Delta Airline, DL

Delta Airlines

Southwest Airlines-WN

Southwest Airlines

American Airlines, AA

American Airlines

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

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?
NO
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 6:14 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 AS : USD 5156
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 10:29 pm

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

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

More Flight Options for Denver (DEN) and Seattle (SEA)

Why Fareleaders for DEN to SEA Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Denver to Seattle flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on DEN to SEA flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Denver to Seattle flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Denver (DEN) to Seattle (SEA)
Terms and Conditions*