RM781 Cheap Flights from Seattle (SEA) to Denver (DEN)

View RM781 flight on Sun, 28 Dec 2025Opens in a new window

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

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Cheap Flights from Seattle to Denver (SEA-DEN)

Prices were available within the past 7 days and start at RM781 for one-way flights and RM569 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 25 Dec - Wed, 31 Dec
SEA
Seattle
DEN
Denver
RM569 Return, found 1 day ago
RM569
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 25 Dec from Seattle to Denver, returning Wed, 31 Dec, priced at RM569 found 1 day ago
Alaska Airlines
Thu, 25 Dec - Tue, 30 Dec
SEA
Seattle
DEN
Denver
RM610 Return, found 1 day ago
RM610
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 25 Dec from Seattle to Denver, returning Tue, 30 Dec, priced at RM610 found 1 day ago
Alaska Airlines
Thu, 25 Dec - Fri, 2 Jan
SEA
Seattle
DEN
Denver
RM652 Return, found 1 day ago
RM652
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 25 Dec from Seattle to Denver, returning Fri, 2 Jan, priced at RM652 found 1 day ago
Alaska Airlines
Fri, 26 Dec - Tue, 30 Dec
SEA
Seattle
DEN
Denver
RM693 Return, found 1 day ago
RM693
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 26 Dec from Seattle to Denver, returning Tue, 30 Dec, priced at RM693 found 1 day ago
Alaska Airlines
Fri, 26 Dec - Fri, 2 Jan
SEA
Seattle
DEN
Denver
RM735 Return, found 1 day ago
RM735
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 26 Dec from Seattle to Denver, returning Fri, 2 Jan, priced at RM735 found 1 day ago
Alaska Airlines
Thu, 25 Dec - Mon, 29 Dec
SEA
Seattle
DEN
Denver
RM775 Return, found 1 day ago
RM775
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 25 Dec from Seattle to Denver, returning Mon, 29 Dec, priced at RM775 found 1 day ago
Delta
Tue, 30 Dec - Wed, 31 Dec
SEA
Seattle
DEN
Denver
RM818 Return, found 1 day ago
RM818
Return
found 1 day ago
Select Delta flight, departing Tue, 30 Dec from Seattle to Denver, returning Wed, 31 Dec, priced at RM818 found 1 day ago
Alaska Airlines
Fri, 26 Dec - Mon, 29 Dec
SEA
Seattle
DEN
Denver
RM858 Return, found 1 day ago
RM858
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 26 Dec from Seattle to Denver, returning Mon, 29 Dec, priced at RM858 found 1 day ago
United
Sun, 28 Dec - Thu, 1 Jan
SEA
Seattle
DEN
Denver
RM1,232 Return, found 1 day ago
RM1,232
Return
found 1 day ago
Select United flight, departing Sun, 28 Dec from Seattle to Denver, returning Thu, 1 Jan, priced at RM1,232 found 1 day ago
American Airlines
Sun, 28 Dec - Thu, 1 Jan
SEA
Seattle
DEN
Denver
RM2,949 Return, found 1 day ago
RM2,949
Return
found 1 day ago
Select American Airlines flight, departing Sun, 28 Dec from Seattle to Denver, returning Thu, 1 Jan, priced at RM2,949 found 1 day ago

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

January is typically the cheapest month to fly

From RM 227 - RM 576 per traveller.
Seattle to Denver route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
RM569
Distance
1635 km
Average flight time
3 hours 35 mins

Perfect flights from Seattle to Denver

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*Note: Prices may vary based on availability and are subject to change.

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