
$109 Cheap Alaska Airlines flights Seattle (SEA) to Denver (DEN)
Prices were available within the past 7 days and start at $109 for one-way flights and $355 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 14 - Sat, Dec 20
SEA
Seattle
DEN
Denver
$355 Roundtrip, found 1 day ago
$355
Roundtrip
found 1 day ago

Sun, Dec 14 - Sat, Dec 20
SEA
Seattle
DEN
Denver
$365 Roundtrip, found 1 day ago
$365
Roundtrip
found 1 day ago

Wed, Dec 17 - Fri, Dec 19
SEA
Seattle
DEN
Denver
$367 Roundtrip, found 1 day ago
$367
Roundtrip
found 1 day ago
Find the cheapest month to fly from Seattle (SEA) to Denver (DEN)
February is typically the cheapest month to fly
From $58 - $152 per traveler.
Origin airport | Seattle - Tacoma Intl. |
|---|---|
Destination airport | Denver Intl. |
Distance | 1635 km |
Average flight time | 3 hours 36 mins |
Most Popular Alaska Airlines Routes from Denver
- Los Angeles to Guatemala City (LAX - GUA)
- San Luis Obispo to Madison (SBP - MSN)
- San Francisco to Las Vegas (SFO - LAS)
- Kelowna to Las Vegas (YLW - LAS)
- Kelowna to Las Vegas (YLW - LAS)
- Cleveland to Billings (CLE - BIL)
- New York to Phoenix (JFK - PHX)
- Boston to Las Vegas (BOS - LAS)
- Washington to Boise (IAD - BOI)
- Fresno to Orlando (FAT - MCO)
Popular Domestic Routes in Denver Intl.
- Portland to Salt Lake City (PDX - SLC)
- Chicago to Phoenix (ORD - PHX)
- San Francisco to Las Vegas (SFO - LAS)
- New York to Phoenix (JFK - PHX)
- Fresno to Orlando (FAT - MCO)
- San Diego to Phoenix (SAN - PHX)
- Fresno to Orlando (FAT - MCO)
- New York to Phoenix (JFK - PHX)
- San Luis Obispo to Madison (SBP - MSN)
- Cincinnati to Spokane (CVG - GEG)