Cheap Flight Tickets from Seattle (SEA) to Denver (DEN), Starting at $269

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 Round Trip Flight

$296

DL Delta Airlines • nonstop • 4h 11m

Aug 28 – Sep 03

The cheapest round trip flight from Seattle to Denver (SEA-DEN-SEA) is currently $296

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Cheapest One way Flight

$269

WN Southwest Airlines • 1 stop • 14h

Dec 18

The cheapest one way flight from Seattle to Denver (SEA-DEN) is currently $269

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Cheapest Direct Flight

$529

WN Southwest Airlines • nonstop • 4h 5m

Aug 28

The cheapest nonstop flight from Seattle to Denver (SEA-DEN) is currently $529

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Fastest Flight

3h 55m

The fastest nonstop flight from Seattle to Denver (SEA-DEN) takes 3h 55m

Top Airlines Flying from Seattle to Denver

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Sun Country Airlines (SY)

Sun Country Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

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

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

Aug 28 - Sep 03, Economy
DL
Seattle → Denver
4h 11m
8:07 PM - 11:58 PM • nonstop
DL
Seattle → Denver
10h 31m
6:28 PM - 11:59 PM • 1 stop
$296
Delta Airlines
Aug 28 - Sep 03, Economy
DL
Seattle → Denver
11h 59m
9:59 AM - 6:18 PM • 1 stop
DL
Seattle → Denver
7h 2m
5:35 AM - 8:57 AM • 1 stop
$302
Delta Airlines
Aug 28 - Sep 03, Economy
WN
Seattle → Denver
10h 40m
6:15 AM - 1:55 PM • 1 stop
WN
Seattle → Denver
5h 5m
8:55 PM - 11:00 PM • nonstop
$539
Southwest Airlines
Aug 28 - Sep 03, Economy
WN
Seattle → Denver
11h 45m
2:35 PM - 10:40 PM • 1 stop
WN
Seattle → Denver
4h 15m
9:10 AM - 11:05 AM • nonstop
$539
Southwest Airlines
Aug 28 - Sep 03, Economy
WN
Seattle → Denver
9h 5m
5:00 AM - 11:45 AM • 1 stop
WN
Seattle → Denver
5h
6:50 PM - 8:50 PM • nonstop
$539
Southwest Airlines
Aug 28 - Sep 03, Economy
WN
Seattle → Denver
10h 30m
9:45 AM - 5:15 PM • 1 stop
WN
Seattle → Denver
5h
6:50 PM - 8:50 PM • nonstop
$539
Southwest Airlines

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 5:00 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 269
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 8:07 pm

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

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

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