
$172 Cheap Frontier Airlines flights Washington (IAD) to Seattle (SEA)
Prices were available within the past 7 days and start at $172 for one-way flights and $334 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 31 - Thu, Aug 7
IAD
Washington
SEA
Seattle
$334 Roundtrip, found 5 days ago
$334
Roundtrip
found 5 days ago

Mon, Aug 4 - Mon, Aug 11
IAD
Washington
PAE
Seattle
$334 Roundtrip, found 5 days ago
$334
Roundtrip
found 5 days ago

Fri, Aug 1 - Mon, Aug 11
IAD
Washington
PAE
Seattle
$339 Roundtrip, found 5 days ago
$339
Roundtrip
found 5 days ago

Fri, Aug 1 - Fri, Aug 8
IAD
Washington
PAE
Seattle
$344 Roundtrip, found 5 days ago
$344
Roundtrip
found 5 days ago

Thu, Jul 31 - Sun, Aug 3
IAD
Washington
SEA
Seattle
$409 Roundtrip, found 15 hours ago
$409
Roundtrip
found 15 hours ago
Origin airport | Washington Dulles Intl. |
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United |
Popular airline | Delta |
Distance | 3679 km |
Average flight time | 2 hours 48 mins |
Most Popular Frontier Airlines Routes from Washington
Most Popular Frontier Airlines Routes from Seattle
- Dallas to New York (DFW - JFK)
- Tampa to Charlotte (TPA - CLT)
- Orlando to Trenton (MCO - TTN)
- Nashville to Seattle (BNA - SEA)
- Orlando to Las Vegas (MCO - LAS)
- Dallas to New York (DFW - LGA)
- Orlando to Philadelphia (MCO - PHL)
- Atlanta to Baltimore (ATL - BWI)
- Baltimore to Tampa (BWI - TPA)
- Las Vegas to Reno (LAS - RNO)
Popular Domestic Routes in Seattle - Tacoma Intl.
- Orlando to Philadelphia (MCO - PHL)
- Atlanta to Las Vegas (ATL - LAS)
- Orlando to Trenton (MCO - TTN)
- Nashville to Seattle (BNA - SEA)
- Orlando to Las Vegas (MCO - LAS)
- Sacramento to San Antonio (SMF - SAT)
- Pittsburgh to Islip (PIT - ISP)
- Dallas to New York (DFW - JFK)
- New York to Atlanta (JFK - ATL)
- Portland to Los Angeles (PDX - LAX)