Cheap Flights to St. Charles from HK$777

View HK$777 flight on Mon, 5 Jan 2026Opens in a new window

Popular airlines to St. Charles

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to St. Charles

Prices were available within the past 7 days and start at HK$777 for one-way flights and HK$1,431 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 15 Jan - Fri, 23 Jan
YYZ
Toronto
ORD
Chicago
HK$1,431 Return, found 4 hours ago
HK$1,431
Return
found 4 hours ago
Select United flight, departing Thu, 15 Jan from Toronto to Chicago, returning Fri, 23 Jan, priced at HK$1,431 found 4 hours ago
Porter Airlines
Thu, 22 Jan - Thu, 29 Jan
YTZ
Toronto
MDW
Chicago
HK$1,432 Return, found 4 days ago
HK$1,432
Return
found 4 days ago
Select Porter Airlines flight, departing Thu, 22 Jan from Toronto to Chicago, returning Thu, 29 Jan, priced at HK$1,432 found 4 days ago
Air Canada
Sat, 21 Feb - Mon, 23 Feb
YYZ
Toronto
ORD
Chicago
HK$1,444 Return, found 1 day ago
HK$1,444
Return
found 1 day ago
Select Air Canada flight, departing Sat, 21 Feb from Toronto to Chicago, returning Mon, 23 Feb, priced at HK$1,444 found 1 day ago
Delta
Mon, 5 Jan - Mon, 12 Jan
STL
St. Louis
MDW
Chicago
HK$1,553 Return, found 19 hours ago
HK$1,553
Return
found 19 hours ago
Select Delta flight, departing Mon, 5 Jan from St. Louis to Chicago, returning Mon, 12 Jan, priced at HK$1,553 found 19 hours ago
American Airlines
Thu, 22 Jan - Thu, 29 Jan
YYZ
Toronto
ORD
Chicago
HK$1,883 Return, found 4 days ago
HK$1,883
Return
found 4 days ago
Select American Airlines flight, departing Thu, 22 Jan from Toronto to Chicago, returning Thu, 29 Jan, priced at HK$1,883 found 4 days ago

Find the cheapest month to fly from Columbus (CMH) to Chicago (ORD)

July is typically the cheapest month to fly

From HK$598 - HK$2,254 per traveller.

Black Friday Sale

Limited-time deals: Save up to 50% on select hotels
Book now
Flights to St. Charles information
Destination airport
O'Hare Intl.
Destination airport IATA code
ORD
Destination city name
Chicago
Return price
HK$1,431

Trending flights to St. Charles

Prices were available within the past 7 days and start at HK$777 for one-way flights and HK$1,431 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Mon, 5 Oct - Tue, 13 Oct
HKG
Hong Kong SAR
ORD
Chicago
HK$6,485 Return, found 5 days ago
HK$6,485
Return
found 5 days ago
Select China Airlines flight, departing Mon, 5 Oct from Hong Kong SAR to Chicago, returning Tue, 13 Oct, priced at HK$6,485 found 5 days ago
*Available to Expedia members.