Cheap Flight Tickets from Seattle (SEA) to Denver (DEN), Starting at $86

Good to Know: Cheapest and Fastest SEA - DEN Flights

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

Cheapest One way Flight

$86

WN Southwest Airlines • 1 stop • 15h 5m

Oct 13

The cheapest one way flight from Seattle to Denver (SEA-DEN) is currently $86

🔍 Search Flights

Fastest Flight

4h 10m

The fastest nonstop flight from Seattle to Denver (SEA-DEN) takes 4h 10m

Top Airlines Flying from Seattle to Denver

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 Seattle (SEA) to Denver (DEN)

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

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

FAQs on Seattle to Denver Flights

What are the airports in Seattle?
SEA
What’s the most popular airline flying from SEA to DEN?
The most popular airline flying from Seattle to Denver are
Can I fly from SEA to DEN non-stop?
Yes, you can fly SEA to DEN non-stop on
Which airlines fly nonstop between Seattle and Denver?
The non-stop flights between Seattle and Denver are .
What’s the earliest departure time from SEA to DEN Airport?
The earliest flight leaves SEA at 7:05 am and lands in DEN - Denver International
What are the airports in Denver?
DEN
Can I make changes to my Seattle to Denver 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 SEA to DEN?
Read the fare rules of the Seattle to Denver 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 Seattle and Denver?
operate flights between Seattle and Denver
How long does a flight from Seattle to Denver take?
It takes approximately 3 hour to fly non-stop from SEA to DEN, which is 1024.03 miles by air.
Which airlines provide the cheapest flights from Seattle (SEA) to Denver (DEN) ?
In the past couple of days, the cheapest tickets to DEN from SEA were found on WN : USD 570
Do I need a passport to fly between SEA and DEN?
No
What’s the latest departure time from SEA to DEN ?
The last flight leaves SEA at 8:00 pm

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

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

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

Why Fareleaders for SEA to DEN Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Seattle to Denver flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on SEA to DEN flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Seattle to Denver 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 Seattle (SEA) to Denver (DEN)
Terms and Conditions*