Cheap flights from Seattle to Philadelphia
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Travel tip: What makes Philadelphia so memorable is its unique mix of experiences that every visitor can discover here. You can explore four centuries of history and architecture, beautiful neighborhoods, remarkable museum collections and endless shopping during the day, and after the sun sets, the city heats up with acclaimed performing arts, delectable dining and vibrant nightlife.Check our current prices for flights from Seattle to Philadelphia. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Seattle to Philadelphia, you will need to run a search below.
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Cheap Philadelphia airfares from $292/RT are provided by Cheapoair.com. Outbound flight is leaving on 06/24/2025, 04:58 pm from Seattle/tacoma Sea/tac (SEA) airport and arrives at Philadelphia Pa/wilm`ton Intl (PHL) at 10:42 pm. The flight time is 5 hours and 44 minutes. The Returning flight departes on 07/02/2025, 05:45 am (other return dates are also available). Date posted: 29 Jan 2025
Price evolution for flights From Seattle To Philadelphia

Recent Deals on Flights from Seattle to Philadelphia:Roundtrip / Oneway
- $292
Spirit Airlines
cheapoair.com check priceFrom To Departure Time Seattle, WA (SEA) Philadelphia, PA (PHL) 06/24/2025 04:58 pm Philadelphia, PA (PHL) Seattle, WA (SEA) 07/02/2025 05:45 am - $295
Spirit Airlines
cheapoair.com check priceFrom To Departure Time Seattle, WA (SEA) Philadelphia, PA (PHL) 07/02/2025 04:58 pm Philadelphia, PA (PHL) Seattle, WA (SEA) 07/09/2025 05:45 am - $417
Sun Country Airlines
cheapoair.com check priceFrom To Departure Time Seattle, WA (SEA) Philadelphia, PA (PHL) 06/24/2025 12:10 pm Philadelphia, PA (PHL) Seattle, WA (SEA) 07/02/2025 12:05 pm - $574
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Seattle, WA (SEA) Philadelphia, PA (PHL) 07/02/2025 11:59 pm Philadelphia, PA (PHL) Seattle, WA (SEA) 07/09/2025 12:37 pm - We are sorry but currently there are no oneway offers for flights from Seattle to Philadelphia.
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