
$49 Cheap Frontier Airlines flights Seattle (SEA) to Denver (DEN)
$49 Cheap Frontier Airlines flights Seattle (SEA) to Denver (DEN)
Prices were available within the past 7 days and start at $49 for one-way flights and $98 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 4 - Mon, Jun 8
SEA
Seattle
DEN
Denver
$98 Roundtrip, found 2 hours ago
$98
Roundtrip
found 2 hours ago

Thu, Jun 4 - Tue, Jun 9
SEA
Seattle
DEN
Denver
$108 Roundtrip, found 2 hours ago
$108
Roundtrip
found 2 hours ago

Sat, May 30 - Tue, Jun 9
SEA
Seattle
DEN
Denver
$118 Roundtrip, found 2 hours ago
$118
Roundtrip
found 2 hours ago

Tue, May 5 - Thu, May 21
SEA
Seattle
DEN
Denver
$134 Roundtrip, found 1 day ago
$134
Roundtrip
found 1 day ago

Sat, May 30 - Tue, Jun 16
SEA
Seattle
DEN
Denver
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago

Tue, Jun 2 - Tue, Jun 9
SEA
Seattle
DEN
Denver
$143 Roundtrip, found 1 day ago
$143
Roundtrip
found 1 day ago
Find the cheapest month to fly from Seattle (SEA) to Denver (DEN)
May is typically the cheapest month to fly
From $56 - $164 per traveler.
Travel information
Origin airport | Seattle - Tacoma Intl. |
|---|---|
Destination airport | Denver Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United |
Popular airline | Frontier Airlines |
Distance | 1635 km |
Average flight time | 3 hours 39 mins |
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Most Popular Frontier Airlines Routes from Seattle
Most Popular Frontier Airlines Routes from Denver
- Phoenix to Seattle (PHX - SEA)
- Baltimore to Los Angeles (BWI - LAX)
- Chicago to Houston (ORD - IAH)
- New York to San Pedro Sula (LGA - SAP)
- Los Angeles to Washington (LAX - IAD)
- Denver to Seattle (DEN - SEA)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Seattle to Los Angeles (SEA - LAX)
- Seattle to Phoenix (SEA - PHX)
- New York to San Pedro Sula (LGA - SAP)
Popular Domestic Routes in Denver Intl.
- Baltimore to Los Angeles (BWI - LAX)
- Seattle to Los Angeles (SEA - LAX)
- Newark Liberty Intl. Airport to Las Vegas (EWR - LAS)
- New York to Orlando (LGA - MCO)
- Seattle to Phoenix (SEA - PHX)
- New York to Atlanta (LGA - ATL)
- Phoenix to Seattle (PHX - SEA)
- Baltimore to Los Angeles (BWI - LAX)
- Atlanta to Las Vegas (ATL - LAS)
- Newark Liberty Intl. Airport to Las Vegas (EWR - LAS)