Alaska Airlines Flights from Seattle to Denver

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Lowest fares from Seattle to Denver

Jun 2025
From$149*
Seen: 1 hour ago
Flight Type One Way|Saver
$109
$264
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Range$109-$264

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

One-way low-fare flights Seattle to Denver.*

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One-way low-fare flights Seattle to Denver.*
From
To
Fare Type
Dates
Price
Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Aug 19, 2025

From

$79

Seen: 1 day ago

Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Nov 11, 2025

From

$79

Seen: 1 day ago

Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Sep 3, 2025

From

$79

Seen: 16 hours ago

Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Aug 27, 2025

From

$79

Seen: 1 day ago

Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Sep 17, 2025

From

$79

Seen: 6 hours ago

Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Sep 9, 2025

From

$79

Seen: 8 hours ago

Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Nov 13, 2025

From

$87

Seen: 1 day ago

Seattle (SEA)Denver (DEN)One-way
|
Saver		Depart: Sep 22, 2025

From

$87

Seen: 1 day ago

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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