$412 Economy Roundtrip to Philadelphia (SEA-PHL) in Oct from Seattle

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$412 Economy Roundtrip to Philadelphia (SEA-PHL) in Oct from Seattle

Best Flights starting from $412

from$412economy

Seattle (SEA)

Thu, Oct 22

Roundtrip

Philadelphia (PHL)

Sun, Oct 25

Fields updated — click View Prices to search ↑

Other Options for This Route

PHL destination

Economy One-way to Philadelphia (PHL)

Seattle (SEA) to Philadelphia (PHL) in October from $194

PHL destination

Economy One-way to Philadelphia (PHL)

Seattle (SEA) to Philadelphia (PHL) in November from $170

PHL destination

Economy Roundtrip to Philadelphia (PHL)

Seattle (SEA) to Philadelphia (PHL) in November from $377

PHL destination

Economy One-way to Philadelphia (PHL)

Seattle (SEA) to Philadelphia (PHL) in December from $189

PHL destination

Economy One-way to Philadelphia (PHL)

Seattle (SEA) to Philadelphia (PHL) in January from $97

PHL destination

Economy One-way to Philadelphia (PHL)

Seattle (SEA) to Philadelphia (PHL) in April from $135

Other Destinations

DEN destination

Economy One-way to Denver (DEN)

Seattle (SEA) to Denver (DEN) in October from $29

PHX destination

Economy One-way to Phoenix (PHX)

Seattle (SEA) to Phoenix (PHX) in October from $62

LAXA destination

Economy Roundtrip to Los Angeles (Any)

Seattle (SEA) to Los Angeles (Any) in October from $64

DFW destination

Economy One-way to Dallas (DFW)

Seattle (SEA) to Dallas (DFW) in October from $72

PSP destination

Economy One-way to Palm Springs (PSP)

Seattle (SEA) to Palm Springs (PSP) in October from $89

BUR destination

Economy One-way to Burbank (BUR)

Seattle (SEA) to Burbank (BUR) in October from $97

Flights from Other Cities

PHL destination

Economy One-way to Philadelphia (PHL)

Atlanta (ATL) to Philadelphia (PHL) in October from $49

PHL destination

Economy Roundtrip to Philadelphia (PHL)

Chicago (ORD) to Philadelphia (PHL) in October from $49

PHL destination

Economy One-way to Philadelphia (PHL)

Tampa (TPA) to Philadelphia (PHL) in October from $49

PHL destination

Economy One-way to Philadelphia (PHL)

San Juan (SJU) to Philadelphia (PHL) in October from $52

PHL destination

Economy One-way to Philadelphia (PHL)

Miami (Any) to Philadelphia (PHL) in October from $53

PHL destination

Economy One-way to Philadelphia (PHL)

Detroit (DTW) to Philadelphia (PHL) in October from $55

Cheap economy Class Flights from Seattle (SEA) to Philadelphia (PHL) October

Find the best deals on economy class flights. Compare prices for direct flights, one-stop, and multi-stop options.

Cheap economy Flights: SEA to PHL in October - Route 1

Starting from $412

Flight Options & Prices:

Direct Flights: From $447 - Fastest option with no layovers
One-Stop Flights: From $412 - Good value with one connection
Multi-Stop Flights: From $412 - Cheapest option with multiple connections

Book your economy class flight from Seattle (SEA) to Philadelphia (PHL)and save money on your travel. Compare all flight options to find the best deal for your october trip.

Why Choose Economy Class Flights from Seattle (SEA) to Philadelphia (PHL)?

Compare prices from multiple airlines
Find direct flights and multi-stop options
Best deals for october travel
Flexible booking options
24/7 customer support

Planning a trip from Seattle (SEA) to Philadelphia (PHL) in october? SlickTrip helps you find the cheapest economy class flights with our comprehensive flight comparison tool. Whether you prefer direct flights for convenience or multi-stop flights for savings, we have options for every budget and schedule.