Cheap Flights from Chicago to Great Lakes Seaway: CHI→BUF from HK$779

View HK$779 flight on Sat, 11 Oct 2025Opens in a new window

Popular airlines from Chicago to Great Lakes Seaway

  • HK Express

    HK Express

  • Cathay Pacific

    Cathay Pacific

  • Peach

    Peach

  • British Airways

    British Airways

  • AirAsia

    AirAsia

  • Thai AirAsia

    Thai AirAsia

  • Hong Kong Airlines

    Hong Kong Airlines

  • 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 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Find Cheap Flights from Chicago (CHI) to Great Lakes Seaway (BUF)

Prices were available within the past 7 days and start at HK$779 for one-way flights and HK$1,803 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 11 Oct - Sun, 19 Oct
ORD
Chicago
BUF
Buffalo
HK$1,803 Return, found 5 days ago
HK$1,803
Return
found 5 days ago
Select Delta flight, departing Sat, 11 Oct from Chicago to Buffalo, returning Sun, 19 Oct, priced at HK$1,803 found 5 days ago
United
Sat, 11 Oct - Sun, 19 Oct
ORD
Chicago
BUF
Buffalo
HK$1,952 Return, found 5 days ago
HK$1,952
Return
found 5 days ago
Select United flight, departing Sat, 11 Oct from Chicago to Buffalo, returning Sun, 19 Oct, priced at HK$1,952 found 5 days ago
Delta
Sat, 11 Oct - Sun, 19 Oct
ORD
Chicago
BUF
Buffalo
HK$1,955 Return, found 5 days ago
HK$1,955
Return
found 5 days ago
Select Delta flight, departing Sat, 11 Oct from Chicago to Buffalo, returning Sun, 19 Oct, priced at HK$1,955 found 5 days ago
American Airlines
Sat, 11 Oct - Sun, 19 Oct
ORD
Chicago
BUF
Buffalo
HK$1,962 Return, found 5 days ago
HK$1,962
Return
found 5 days ago
Select American Airlines flight, departing Sat, 11 Oct from Chicago to Buffalo, returning Sun, 19 Oct, priced at HK$1,962 found 5 days ago
American Airlines
Sun, 7 Sep - Sun, 14 Sep
ORD
Chicago
BUF
Buffalo
HK$2,038 Return, found 15 hours ago
HK$2,038
Return
found 15 hours ago
Select American Airlines flight, departing Sun, 7 Sep from Chicago to Buffalo, returning Sun, 14 Sep, priced at HK$2,038 found 15 hours ago
United
Sun, 7 Sep - Sun, 14 Sep
ORD
Chicago
BUF
Buffalo
HK$2,048 Return, found 15 hours ago
HK$2,048
Return
found 15 hours ago
Select United flight, departing Sun, 7 Sep from Chicago to Buffalo, returning Sun, 14 Sep, priced at HK$2,048 found 15 hours ago

Find the cheapest month to fly from Chicago (CHI) to Buffalo (BUF)

August is typically the cheapest month to fly

From HK$870 - HK$2,896 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.