Flights to North Shore from Seattle - ￥14,500

View ￥14,500 flight on Wed, Sep 10, 2025Opens in a new window

Popular airlines from Seattle to North Shore

  • 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 Seattle to North Shore (SEA-BOS)

Prices were available within the past 7 days and start at ￥14,500 for one-way flights and ￥31,940 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Nov 1 - Sat, Nov 8
SEA
Seattle
BOS
Boston
￥31,940 Roundtrip, found 5 days ago
￥31,940
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Nov 1 from Seattle to Boston, returning Sat, Nov 8, priced at ￥31,940 found 5 days ago
Delta
Sat, Nov 1 - Sat, Nov 8
SEA
Seattle
BOS
Boston
￥33,470 Roundtrip, found 5 days ago
￥33,470
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Nov 1 from Seattle to Boston, returning Sat, Nov 8, priced at ￥33,470 found 5 days ago
Delta
Wed, Oct 8 - Sat, Oct 11
SEA
Seattle
BOS
Boston
￥33,610 Roundtrip, found 6 hours ago
￥33,610
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Oct 8 from Seattle to Boston, returning Sat, Oct 11, priced at ￥33,610 found 6 hours ago
Delta
Sat, Nov 1 - Sat, Nov 8
SEA
Seattle
BOS
Boston
￥34,240 Roundtrip, found 5 days ago
￥34,240
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Nov 1 from Seattle to Boston, returning Sat, Nov 8, priced at ￥34,240 found 5 days ago
American Airlines
Sat, Nov 1 - Sat, Nov 8
SEA
Seattle
BOS
Boston
￥34,690 Roundtrip, found 5 days ago
￥34,690
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Nov 1 from Seattle to Boston, returning Sat, Nov 8, priced at ￥34,690 found 5 days ago
Hawaiian Airlines
Wed, Nov 5 - Mon, Nov 10
SEA
Seattle
BOS
Boston
￥162,500 Roundtrip, found 6 days ago
￥162,500
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Nov 5 from Seattle to Boston, returning Mon, Nov 10, priced at ￥162,500 found 6 days ago
*Available to Expedia members.