Seattle to Philadelphia (SEA–PHL) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
SEA–PHL is served by 3 airlines with nonstop service. American Airlines, Alaska Airlines and Delta Air Lines lead the route. The flight covers 2,372 miles in approximately 5h 12m. Beyond nonstop, 84 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AA American Airlines Also: BA, CX | 35 | 321, 7M8 | 5h12-5h24 | Oneworld | BA, CX | |
| AS Alaska Airlines | 14 | 7M9 | 5h18-5h26 | Oneworld | – | |
| DL Delta Air Lines | 7 | 32Q | 5h17 | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Philadelphia from Seattle
| Metric | SEA→PHL | PAE→PHL |
|---|---|---|
| Distance from SEA | – | 32 mi |
| Nonstop airlines | 3 | 1 |
| Weekly flights | 75 | – |
| Flight time | 5h 12m | 5h 50m |
| Departure OTP | 76% | – |
Travel Essentials
SEA: PDT · PHL: EDT
When it's 6:00 PM in Seattle, it's 9:00 PM in Philadelphia.
Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).
Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.
SEPTA Airport Line from the terminal to Center City takes 25–30 minutes ($8). Trains run every 30 minutes (5am to midnight) to 30th Street, Suburban, and Jefferson stations; all with connections to the subway and regional rail network. Buy tickets at platform machines.Taxis to Center City cost $28–35 (flat rate). Ride-shares to Center City run $22–35. For New York City, the Bolt Bus and Greyhound stop near 30th Street Station, or take NJ Transit to New York Penn Station (connecting from 30th Street). Amtrak also departs 30th Street Station for New York in 65 minutes.
Humid continental climate on the Delaware River. Winters (December–March) are cold (−2 to 5°C) with snow and ice. Philadelphia sits in the I-95 "snow corridor" and receives significant nor'easter snowfall several times per winter. PHL has solid de-icing capacity, but major storms cause multi-hour and multi-day disruptions.
Summers are hot and humid (28–34°C) with afternoon thunderstorms that cause frequent delays June through August. Spring and fall are transitional with variable conditions. Fog along the Delaware is occasional in fall and early winter mornings.
SEA–PHL Quick Facts
Frequently Asked Questions
Flights from SEA to PHL
Seattle–Tacoma International Airport (SEA) and Philadelphia International Airport (PHL) are connected by nonstop service from American Airlines, Alaska Airlines and Delta Air Lines. With 75 weekly departures, this is a heavily served route.
SEA to PHL Flight Duration and Schedule
Nonstop flight time from SEA to PHL ranges from 5 hours 12 minutes to 5 hours 26 minutes. The route covers a distance of 2,372 miles (3,818 km). There are approximately 75 weekly flights outbound and 70 return, totaling 145 flights per week in both directions.
Connecting Options and Alternatives
84 one-stop connections are available, with the fastest taking approximately 6 hours via BZN. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Everett (PAE).