Latest Flight Deals from Ontario to Chicago
Book one-way or return flights from Ontario to Chicago from as little as HK$302. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- ONT00:598h 10m1 stopMDW11:09Wed, May 29|Ontario - Chicago|Frontier AirlinesHK$302HK$54845% OFF45% OFFHK$548HK$302
- ONT22:105h 40m1 stopMDW05:50Sat, May 18|Ontario - Chicago|Frontier AirlinesHK$364HK$54834% OFF34% OFFHK$548HK$364
- ONT00:598h 10m1 stopMDW11:09Wed, May 22|Ontario - Chicago|Frontier AirlinesHK$365HK$54833% OFF33% OFFHK$548HK$365
- ONT00:5910h 50m1 stopMDW13:49Tue, May 21|Ontario - Chicago|Frontier AirlinesHK$383HK$383
- ONT16:3121h 6m1 stopMDW15:37Mon, May 20|Ontario - Chicago|Frontier AirlinesHK$404HK$404
- ONT23:0728h 43m1 stopMDW05:50Thu, May 23|Ontario - Chicago|Frontier AirlinesHK$416HK$416
- ONT00:5921h 41m1 stopORD00:40Tue, Jun 11|Ontario - Chicago|Frontier AirlinesHK$448HK$448
- ONT17:4910h 51m1 stopORD06:40Mon, Jun 3|Ontario - Chicago|Frontier AirlinesHK$449HK$449
- ONT00:5918h 7m1 stopMDW21:06Sat, Jun 1|Ontario - Chicago|Frontier AirlinesHK$454HK$454
- ONT00:599h 1m1 stopMDW12:00Wed, Jun 5|Ontario - Chicago|Frontier AirlinesHK$454HK$454
- ONT13:003h 5mDirectCHI14:00Wed, May 22|Ontario - Chicago|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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View airlines operating flights from Ontario to Chicago. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Find more flights and airlines
Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Ontario to Chicago.
- CheapestONT00:598h 10m1 transferMDW11:09Ontario International Airport - Midway International AirportWed, May 29Frontier AirlinesHK$302
- ONT14:358h 38m1 transferORD01:13Ontario International Airport - O'Hare International AirportWed, May 22Frontier AirlinesHK$400
- ONT23:3019h 18m1 transferRFD20:48Ontario International Airport - Chicago Rockford International AirportWed, May 22Frontier AirlinesHK$1,165
- ONT23:3019h 18m1 transferRFD20:48Ontario International Airport - Chicago Rockford International AirportWed, May 22Frontier AirlinesHK$1,165Find More Flights
How do I find the cheapest flights?
How to find a cheap flight from Ontario to Chicago
Cheapest direct flight price | HK$301 |
---|---|
Cheapest return ticket price | HK$870 |
Cheapest month | February |
Peak season for travel | October |
Flight distance | 9,812.12km |
Popular airline | Frontier Airlines |
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