
$49 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)
$49 Cheap Frontier Airlines flights Denver (DEN) to Seattle (SEA)
Prices were available within the past 7 days and start at $49 for one-way flights and $90 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 21 - Tue, Apr 28
DEN
Denver
SEA
Seattle
$90 Roundtrip, found 6 days ago
$90
Roundtrip
found 6 days ago

Thu, Apr 16 - Tue, May 5
DEN
Denver
SEA
Seattle
$93 Roundtrip, found 6 days ago
$93
Roundtrip
found 6 days ago

Tue, Apr 21 - Sat, Apr 25
DEN
Denver
SEA
Seattle
$95 Roundtrip, found 6 days ago
$95
Roundtrip
found 6 days ago

Sat, Apr 18 - Tue, Apr 28
DEN
Denver
SEA
Seattle
$103 Roundtrip, found 6 days ago
$103
Roundtrip
found 6 days ago

Thu, Apr 16 - Sat, May 2
DEN
Denver
SEA
Seattle
$106 Roundtrip, found 6 days ago
$106
Roundtrip
found 6 days ago

Sat, Apr 18 - Sat, Apr 25
DEN
Denver
SEA
Seattle
$108 Roundtrip, found 6 days ago
$108
Roundtrip
found 6 days ago
Alternative airports near Seattle
Prices were available within the past 7 days. Prices and availability are subject to change.
Find the cheapest month to fly from Denver (DEN) to Seattle (SEA)
January is typically the cheapest month to fly
From $54 - $172 per traveler.
Travel information
Origin airport | Denver Intl. |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United |
Popular airline | Frontier Airlines |
Distance | 1635 km |
Average flight time | 1 hour 57 mins |
Explore a world of travel with Expedia
Most Popular Frontier Airlines Routes from Denver
- Frontier Airlines DEN to IND
- Frontier Airlines DEN to RDU
- Frontier Airlines DEN to LGA
- Frontier Airlines DEN to AUS
- Frontier Airlines DEN to MSN
- Frontier Airlines DEN to MYR
- Frontier Airlines DEN to STL
- Frontier Airlines DEN to RNO
- Frontier Airlines DEN to ORD
- Frontier Airlines DEN to SAN
- Frontier Airlines DEN to OKC
Most Popular Frontier Airlines Routes from Seattle
- New York to Miami (LGA - MIA)
- Washington to Austin (IAD - AUS)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Baltimore to Austin (BWI - AUS)
- Dallas to Detroit (DFW - DTW)
- Atlanta to Las Vegas (ATL - LAS)
- Seattle to Los Angeles (SEA - LAX)
- Atlanta to Philadelphia (ATL - PHL)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Atlanta to Buffalo (ATL - BUF)
Popular Domestic Routes in Seattle - Tacoma Intl.
- New York to Atlanta (JFK - ATL)
- Seattle to Los Angeles (SEA - LAX)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Washington to Los Angeles (IAD - LAX)
- Atlanta to Las Vegas (ATL - LAS)
- New York to Orlando (LGA - MCO)
- Orange County to Dallas (SNA - DFW)
- Washington to Austin (IAD - AUS)
- New York to Miami (LGA - MIA)
- Chicago to Los Angeles (ORD - LAX)