NZ$87 Cheap Flights Seattle to Denver (SEA-DEN)

View NZ$87 flight on Sat, 13 Dec 2025Opens in a new window

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

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    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 for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 17 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$190 Return, found 3 days ago
NZ$190
Return
found 3 days ago
Select Delta flight, departing Wed, 17 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$190 found 3 days ago
Alaska Airlines
Thu, 18 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$208 Return, found 3 days ago
NZ$208
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 18 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$208 found 3 days ago
Delta
Thu, 18 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$209 Return, found 3 days ago
NZ$209
Return
found 3 days ago
Select Delta flight, departing Thu, 18 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$209 found 3 days ago
Alaska Airlines
Wed, 17 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$243 Return, found 3 days ago
NZ$243
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 17 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$243 found 3 days ago
Delta
Wed, 17 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$244 Return, found 3 days ago
NZ$244
Return
found 3 days ago
Select Delta flight, departing Wed, 17 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$244 found 3 days ago
United
Wed, 17 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$254 Return, found 3 days ago
NZ$254
Return
found 3 days ago
Select United flight, departing Wed, 17 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$254 found 3 days ago
Alaska Airlines
Thu, 18 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$260 Return, found 3 days ago
NZ$260
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 18 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$260 found 3 days ago
Delta
Wed, 17 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$261 Return, found 3 days ago
NZ$261
Return
found 3 days ago
Select Delta flight, departing Wed, 17 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$261 found 3 days ago
Delta
Wed, 17 Dec - Mon, 22 Dec
SEA
Seattle
DEN
Denver
NZ$278 Return, found 3 days ago
NZ$278
Return
found 3 days ago
Select Delta flight, departing Wed, 17 Dec from Seattle to Denver, returning Mon, 22 Dec, priced at NZ$278 found 3 days ago
American Airlines
Sat, 22 Nov - Mon, 24 Nov
SEA
Seattle
DEN
Denver
NZ$614 Return, found 3 days ago
NZ$614
Return
found 3 days ago
Select American Airlines flight, departing Sat, 22 Nov from Seattle to Denver, returning Mon, 24 Nov, priced at NZ$614 found 3 days ago

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 NZ$190. 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.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Denver Intl.
Return price
NZ$190
Distance
1635 km
Average flight time
3 hours 39 mins

Book with confidence

Perfect flights from Seattle to Denver

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Denver. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Seattle - Tacoma Intl. to Denver Intl. ticket options cater to your travel preferences, with incredible one-way fares from NZ$87 and roundtrip prices from NZ$190. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Denver Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Denver.
Perfect flights from Seattle to Denver

Explore a world of travel with Expedia

*Available to Expedia members.