NT$3,150 Cheap Flights from Denver (DEN) to Seattle (SEA)

View NT$3,150 flight on Sat, 2026/5/30Opens in a new window

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

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Cheap Flights from Denver to Seattle (DEN-SEA)

Prices were available within the past 7 days and start at NT$3,150 for one-way flights and NT$7,905 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$7,905 Roundtrip, found 1 day ago
NT$7,905
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$7,905 found 1 day ago
American Airlines
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$9,180 Roundtrip, found 1 day ago
NT$9,180
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$9,180 found 1 day ago
Delta
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$9,181 Roundtrip, found 1 day ago
NT$9,181
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$9,181 found 1 day ago
Delta
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$9,346 Roundtrip, found 1 day ago
NT$9,346
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$9,346 found 1 day ago
United
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$9,660 Roundtrip, found 1 day ago
NT$9,660
Roundtrip
found 1 day ago
Select United flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$9,660 found 1 day ago
Delta
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$9,820 Roundtrip, found 1 day ago
NT$9,820
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$9,820 found 1 day ago
Delta
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$10,145 Roundtrip, found 1 day ago
NT$10,145
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$10,145 found 1 day ago
American Airlines
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$10,454 Roundtrip, found 1 day ago
NT$10,454
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$10,454 found 1 day ago
American Airlines
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$10,620 Roundtrip, found 1 day ago
NT$10,620
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$10,620 found 1 day ago
United
Thu, Apr 30 - Wed, May 6
DEN
Denver
SEA
Seattle
NT$10,621 Roundtrip, found 1 day ago
NT$10,621
Roundtrip
found 1 day ago
Select United flight, departing Thu, Apr 30 from Denver to Seattle, returning Wed, May 6, priced at NT$10,621 found 1 day ago

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

April is typically the cheapest month to fly

From NT$1,791 - NT$5,025 per traveler.

Frequently asked questions

How much is a flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)?
The lowest price advertised for a round-trip flight from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) is NT$7,905. But you better act quick. This price is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Denver Intl. Airport (DEN) to SEA?
Every airline has a different set of terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from Denver Airport to Seattle - Tacoma Intl. Airport (SEA) 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 Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DEN to SEA?
Around 1,650 kilometers separates Denver and SeaTac, so pack some entertainment to keep you busy for a couple of hours. That latest bestseller you're eager to read will be perfect.
Which airlines fly direct from Denver Airport to Seattle - Tacoma Intl. Airport (SEA)?
Traveling from DIA airport to Sea-Tac Airport is easy when you have a nice range of airlines to choose from. Here are some of the best:

  • 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 Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so it's no sure thing. While last-minute flight deals between DIA airport and Seattle - Tacoma Intl. Airport (SEA) are of course possible, it also makes sense to keep an eye on prices well before you fly. In fact, some airlines release their prices up to a year prior to the departure date. Expedia is constantly updating the best bargains around, so check back often and be ready to grab your seat when the fares dip.

Travel information

Origin airport
Denver Intl.
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
NT$7,905
Distance
1635 km
Average flight time
1 hour 58 mins

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