₹6,745 Cheap Flights from Seattle (SEA) to Denver (DEN)

View ₹6,745 flight on Thu, 25 Sep 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Denver International Airport (DEN)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seattle (SEA) to Denver (DEN)

Prices were available within the past 7 days and start at ₹6,745 for one-way flights and ₹13,490 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 16 Aug - Mon, 18 Aug
SEA
Seattle
DEN
Denver
₹13,490 Return, found 1 day ago
₹13,490
Return
found 1 day ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Denver, returning Mon, 18 Aug, priced at ₹13,490 found 1 day ago
Delta
Sat, 16 Aug - Mon, 18 Aug
SEA
Seattle
DEN
Denver
₹15,210 Return, found 1 day ago
₹15,210
Return
found 1 day ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Denver, returning Mon, 18 Aug, priced at ₹15,210 found 1 day ago
Delta
Sat, 16 Aug - Mon, 18 Aug
SEA
Seattle
DEN
Denver
₹16,930 Return, found 1 day ago
₹16,930
Return
found 1 day ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Denver, returning Mon, 18 Aug, priced at ₹16,930 found 1 day ago
Delta
Wed, 24 Sep - Mon, 29 Sep
SEA
Seattle
DEN
Denver
₹17,377 Return, found 2 days ago
₹17,377
Return
found 2 days ago
Select Delta flight, departing Wed, 24 Sep from Seattle to Denver, returning Mon, 29 Sep, priced at ₹17,377 found 2 days ago
American Airlines
Wed, 24 Sep - Mon, 29 Sep
SEA
Seattle
DEN
Denver
₹17,764 Return, found 2 days ago
₹17,764
Return
found 2 days ago
Select American Airlines flight, departing Wed, 24 Sep from Seattle to Denver, returning Mon, 29 Sep, priced at ₹17,764 found 2 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
SEA
Seattle
DEN
Denver
₹17,780 Return, found 1 day ago
₹17,780
Return
found 1 day ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Denver, returning Mon, 18 Aug, priced at ₹17,780 found 1 day ago
Delta
Tue, 5 Aug - Tue, 12 Aug
SEA
Seattle
DEN
Denver
₹18,650 Return, found 1 day ago
₹18,650
Return
found 1 day ago
Select Delta flight, departing Tue, 5 Aug from Seattle to Denver, returning Tue, 12 Aug, priced at ₹18,650 found 1 day ago
Delta
Sat, 16 Aug - Mon, 18 Aug
SEA
Seattle
DEN
Denver
₹19,505 Return, found 1 day ago
₹19,505
Return
found 1 day ago
Select Delta flight, departing Sat, 16 Aug from Seattle to Denver, returning Mon, 18 Aug, priced at ₹19,505 found 1 day ago
United
Wed, 24 Sep - Mon, 29 Sep
SEA
Seattle
DEN
Denver
₹20,365 Return, found 2 days ago
₹20,365
Return
found 2 days ago
Select United flight, departing Wed, 24 Sep from Seattle to Denver, returning Mon, 29 Sep, priced at ₹20,365 found 2 days ago
Alaska Airlines
Mon, 6 Oct - Mon, 3 Nov
PAE
Seattle
DEN
Denver
₹65,172 Return, found 22 hours ago
₹65,172
Return
found 22 hours ago
Select Alaska Airlines flight, departing Mon, 6 Oct from Seattle to Denver, returning Mon, 3 Nov, priced at ₹65,172 found 22 hours ago

Find the cheapest month to fly from Seattle (SEA) to Denver (DEN)

January is typically the cheapest month to fly

From ₹5,573 - ₹22,450 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Denver route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, United
Return price
₹13,490
Distance
1635 km
Average flight time
3 hours 40 mins

Seattle to Denver Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to Denver will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Denver.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to DEN flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to DEN with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from SEA to Denver Airport?
If you're travelling between SEA and Denver Intl. Airport (DEN), round-trip journeys start from ₹13,490. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Denver Airport?
This can differ between air carriers, as each has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Sea-Tac Airport to Denver Intl. Airport (DEN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to Denver Intl. Airport (DEN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to DIA airport?
The flight distance from SeaTac to Denver is 1,650 kilometres. Bring along a snack, a drink and an interesting novel to read. Keep yourself entertained and the time will fly by.
Which airlines fly direct from SEA to Denver Intl. Airport (DEN)?
It's easy to fly directly from Sea-Tac Airport to Denver Airport. These are the top carriers that operate nonstop services on this route:

  • United Airlines - (UA) with 147 monthly flights
  • Southwest Airlines - (WN) with 130 monthly flights
  • Alaska Airlines - (AS) with 117 monthly flights
  • Delta Air Lines - (DL) with 91 monthly flights

Are SEA to DEN flight tickets cheaper when they're purchased at the last minute?
It is possible to get a great last-minute deal from SEA to Denver Intl. Airport (DEN), but there's no guarantee. As many airlines publish prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can be sure you're always getting the latest offers.

Explore a world of travel with Expedia

Seattle Airports

Seattle Paine Field Intl. Airport

*Available to Expedia members.