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Cheap Flights to Ontario Intl. Airport from HK$931

View HK$931 flight on Tue, 22 Sept 2026Opens in a new window

Flight 1

Popular airlines to Ontario Intl. Airport (ONT)

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Cheap round-trip flights to Ontario Intl. Airport

Prices were available within the past 7 days and start at HK$931 for one-way flights and HK$1,706 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 3 Nov - Tue, 17 Nov
SEA
Seattle
ONT
Ontario
HK$1,706 Return, found 1 day ago
HK$1,706
Return
found 1 day ago
Select Delta flight, departing Tue, 3 Nov from Seattle to Ontario, returning Tue, 17 Nov, priced at HK$1,706 found 1 day ago
American Airlines
Sat, 29 Aug - Sun, 30 Aug
STS
Santa Rosa
ONT
Ontario
HK$2,260 Return, found 8 hours ago
HK$2,260
Return
found 8 hours ago
Select American Airlines flight, departing Sat, 29 Aug from Santa Rosa to Ontario, returning Sun, 30 Aug, priced at HK$2,260 found 8 hours ago
Alaska Airlines
Sat, 8 Aug - Mon, 10 Aug
SEA
Seattle
ONT
Ontario
HK$2,722 Return, found 1 day ago
HK$2,722
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 8 Aug from Seattle to Ontario, returning Mon, 10 Aug, priced at HK$2,722 found 1 day ago
United
Sat, 29 Aug - Sun, 6 Sept
LGA
New York
ONT
Ontario
HK$3,550 Return, found 5 hours ago
HK$3,550
Return
found 5 hours ago
Select United flight, departing Sat, 29 Aug from New York to Ontario, returning Sun, 6 Sept, priced at HK$3,550 found 5 hours ago
Korean Air
Mon, 26 Oct - Tue, 10 Nov
TPE
Taipei
ONT
Ontario
HK$6,437 Return, found 3 days ago
HK$6,437
Return
found 3 days ago
Select Korean Air flight, departing Mon, 26 Oct from Taipei to Ontario, returning Tue, 10 Nov, priced at HK$6,437 found 3 days ago

Find the cheapest month to fly from Columbus (CMH) to Ontario (ONT)

February is typically the cheapest month to fly

From HK$1,490 - HK$5,213 per traveller.

Travel information

Destination airport
Ontario Intl. Airport
Destination airport IATA code
ONT
Destination city name
Ontario Intl. Airport
Airlines serving
Air Canada, Alaska Airlines, American Airlines, China Airlines, Delta, Etihad Airways, Japan Airlines, KLM, Korean Air, Qatar Airways, United
Return price
HK$1,706
Popular airline
United

Trending flights to Ontario Intl. Airport

Prices were available within the past 7 days and start at HK$931 for one-way flights and HK$1,706 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 3 Feb - Mon, 15 Feb
HKG
Hong Kong SAR
ONT
Ontario
HK$6,718 Return, found 6 hours ago
HK$6,718
Return
found 6 hours ago
Select United flight, departing Wed, 3 Feb from Hong Kong SAR to Ontario, returning Mon, 15 Feb, priced at HK$6,718 found 6 hours ago

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