Flights to St. Lawrence Seaway from San Francisco - ￥21,160

View ￥21,160 flight on Mon, Sep 1, 2025Opens in a new window

Popular airlines from San Francisco to St. Lawrence Seaway

  • 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 San Francisco to St. Lawrence Seaway (SJC-SYR)

Prices were available within the past 7 days and start at ￥21,160 for one-way flights and ￥41,480 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Aug 10 - Fri, Aug 15
SFO
San Francisco
SYR
Syracuse
￥41,480 Roundtrip, found 1 day ago
￥41,480
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Aug 10 from San Francisco to Syracuse, returning Fri, Aug 15, priced at ￥41,480 found 1 day ago
American Airlines
Mon, Aug 11 - Sat, Aug 16
SFO
San Francisco
SYR
Syracuse
￥51,140 Roundtrip, found 1 day ago
￥51,140
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 11 from San Francisco to Syracuse, returning Sat, Aug 16, priced at ￥51,140 found 1 day ago
American Airlines
Mon, Aug 11 - Sat, Aug 16
SFO
San Francisco
SYR
Syracuse
￥51,910 Roundtrip, found 1 day ago
￥51,910
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 11 from San Francisco to Syracuse, returning Sat, Aug 16, priced at ￥51,910 found 1 day ago
Delta
Mon, Aug 11 - Sat, Aug 16
SFO
San Francisco
SYR
Syracuse
￥53,720 Roundtrip, found 1 day ago
￥53,720
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 11 from San Francisco to Syracuse, returning Sat, Aug 16, priced at ￥53,720 found 1 day ago
American Airlines
Sun, Aug 10 - Fri, Aug 15
SFO
San Francisco
SYR
Syracuse
￥53,950 Roundtrip, found 1 day ago
￥53,950
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Aug 10 from San Francisco to Syracuse, returning Fri, Aug 15, priced at ￥53,950 found 1 day ago
United
Sun, Aug 10 - Fri, Aug 15
SFO
San Francisco
SYR
Syracuse
￥65,430 Roundtrip, found 1 day ago
￥65,430
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 10 from San Francisco to Syracuse, returning Fri, Aug 15, priced at ￥65,430 found 1 day ago
*Available to Expedia members.