Cheap flights from Denver to Auburn from CA $107

View CA $107 flight on Mon, Aug. 18, 2025Opens in a new window

Popular airlines from Denver to Auburn

  • 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 30% 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 Denver (DEN) to Auburn (SEA)

Prices were available within the past 7 days and start at CA $107 for one-way flights and CA $214 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Aug. 21 - Tue, Aug. 26
DEN
Denver
SEA
Seattle
CA $214 Roundtrip, found 13 hours ago
CA $214
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Thu, Aug. 21 from Denver to Seattle, returning Tue, Aug. 26, priced at CA $214 found 13 hours ago
Delta
Sat, Sep. 6 - Thu, Sep. 25
DEN
Denver
SEA
Seattle
CA $217 Roundtrip, found 4 days ago
CA $217
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Sep. 6 from Denver to Seattle, returning Thu, Sep. 25, priced at CA $217 found 4 days ago
Alaska Airlines
Thu, Aug. 21 - Mon, Aug. 25
DEN
Denver
SEA
Seattle
CA $218 Roundtrip, found 1 day ago
CA $218
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Aug. 21 from Denver to Seattle, returning Mon, Aug. 25, priced at CA $218 found 1 day ago
Hawaiian Airlines
Wed, Sep. 10 - Fri, Sep. 26
DEN
Denver
SEA
Seattle
CA $226 Roundtrip, found 4 days ago
CA $226
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Wed, Sep. 10 from Denver to Seattle, returning Fri, Sep. 26, priced at CA $226 found 4 days ago
American Airlines
Sat, Oct. 18 - Mon, Oct. 20
DEN
Denver
SEA
Seattle
CA $255 Roundtrip, found 1 day ago
CA $255
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Oct. 18 from Denver to Seattle, returning Mon, Oct. 20, priced at CA $255 found 1 day ago
United
Sun, Aug. 24 - Mon, Aug. 25
DEN
Denver
SEA
Seattle
CA $334 Roundtrip, found 13 hours ago
CA $334
Roundtrip
found 13 hours ago
Select United flight, departing Sun, Aug. 24 from Denver to Seattle, returning Mon, Aug. 25, priced at CA $334 found 13 hours ago

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

January is typically the cheapest month to fly

From CA $89 - CA $359 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.