
$179 Cheap Alaska Airlines flights Seattle (SEA) to Philadelphia (PHL)
$179 Cheap Alaska Airlines flights Seattle (SEA) to Philadelphia (PHL)
Prices were available within the past 7 days and start at $179 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 1 - Thu, May 7
SEA
Seattle
PHL
Philadelphia
$317 Roundtrip, found 4 hours ago
$317
Roundtrip
found 4 hours ago

Tue, May 5 - Wed, May 13
SEA
Seattle
PHL
Philadelphia
$323 Roundtrip, found 4 hours ago
$323
Roundtrip
found 4 hours ago

Fri, May 1 - Sun, May 24
SEA
Seattle
PHL
Philadelphia
$327 Roundtrip, found 4 hours ago
$327
Roundtrip
found 4 hours ago
Find the cheapest month to fly from Seattle (SEA) to Philadelphia (PHL)
March is typically the cheapest month to fly
From $148 - $402 per traveler.
Travel information
Origin airport | Seattle - Tacoma Intl. |
|---|---|
Destination airport | Philadelphia Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United |
Popular airline | Delta |
Distance | 3794 km |
Average flight time | 8 hours 11 mins |
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Most Popular Alaska Airlines Routes from Seattle
Most Popular Alaska Airlines Routes from Philadelphia
- Seattle Paine Field Intl. Airport to Los Angeles (PAE - LAX)
- White Plains to Seattle (HPN - SEA)
- Los Angeles to Newark Liberty Intl. Airport (LAX - EWR)
- San Francisco to New York (SFO - JFK)
- Orange County to Dallas (SNA - DFW)
- Seattle to Albuquerque (SEA - ABQ)
- Washington to Los Angeles (IAD - LAX)
- Seattle to Philadelphia (SEA - PHL)
- Seattle to Phoenix (SEA - PHX)
- Honolulu to Los Angeles (HNL - LAX)
Popular Domestic Routes in Philadelphia Intl.
- Honolulu to Los Angeles (HNL - LAX)
- Seattle to Philadelphia (SEA - PHL)
- Chicago to Portland (ORD - PDX)
- New York to Seattle (JFK - SEA)
- Eugene to Chicago (EUG - ORD)
- Seattle to Philadelphia (SEA - PHL)
- White Plains to Seattle (HPN - SEA)
- Los Angeles to Newark Liberty Intl. Airport (LAX - EWR)
- San Francisco to New York (SFO - JFK)
- Seattle to Los Angeles (SEA - LAX)