Flights to Centralia - Chehalis from Philadelphia - ￥15,520

View ￥15,520 flight on Mon, Sep 8, 2025Opens in a new window

Popular airlines from Philadelphia to Centralia - Chehalis

  • Peach

    Peach

  • Skymark Airlines

    Skymark Airlines

  • All Nippon Airways

    All Nippon Airways

  • Japan Airlines

    Japan Airlines

  • Jetstar Japan

    Jetstar Japan

  • Solaseed Air

    Solaseed Air

  • STARFLYER

    STARFLYER

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Philadelphia to Centralia - Chehalis (ILG-SEA)

Prices were available within the past 7 days and start at ￥15,520 for one-way flights and ￥42,170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Aug 29 - Fri, Sep 5
PHL
Philadelphia
SEA
Seattle
￥42,170 Roundtrip, found 3 days ago
￥42,170
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Aug 29 from Philadelphia to Seattle, returning Fri, Sep 5, priced at ￥42,170 found 3 days ago
Delta
Thu, Jul 31 - Mon, Aug 4
PHL
Philadelphia
PDX
Portland
￥42,700 Roundtrip, found 5 days ago
￥42,700
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jul 31 from Philadelphia to Portland, returning Mon, Aug 4, priced at ￥42,700 found 5 days ago
Delta
Fri, Aug 29 - Fri, Sep 5
PHL
Philadelphia
SEA
Seattle
￥43,480 Roundtrip, found 3 days ago
￥43,480
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Aug 29 from Philadelphia to Seattle, returning Fri, Sep 5, priced at ￥43,480 found 3 days ago
American Airlines
Fri, Aug 29 - Fri, Sep 5
PHL
Philadelphia
SEA
Seattle
￥46,560 Roundtrip, found 3 days ago
￥46,560
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Aug 29 from Philadelphia to Seattle, returning Fri, Sep 5, priced at ￥46,560 found 3 days ago
Delta
Thu, Jul 31 - Mon, Aug 4
PHL
Philadelphia
PDX
Portland
￥46,710 Roundtrip, found 5 days ago
￥46,710
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jul 31 from Philadelphia to Portland, returning Mon, Aug 4, priced at ￥46,710 found 5 days ago
United
Wed, Jan 7 - Fri, Jan 30
PHL
Philadelphia
SEA
Seattle
￥54,300 Roundtrip, found 20 hours ago
￥54,300
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Jan 7 from Philadelphia to Seattle, returning Fri, Jan 30, priced at ￥54,300 found 20 hours ago

Find the cheapest month to fly from Philadelphia (PHL) to Seattle (SEA)

September is typically the cheapest month to fly

From ￥20,222 - ￥40,026 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.