Fare Guide
Estimated lowest fares found within 7 days
Cheapest Airline
The cheapest airline(s) flying from Chicago to Ontario is Frontier Airlines.
Cheapest Month
August
Travel Period: June 2024 - May 2025
The cheapest month(s) to fly from Chicago to Ontario is August.
Cheapest Day of the Week
Tuesday
The cheapest day(s) of the week to fly from Chicago to Ontario is Tuesday.
Cheapest Time
10pm
The cheapest time of the day to fly from Chicago to Ontario is in the evening.
Early Morning 12:01am - 06:00am
Morning 6:01am - 12:00pm
Afternoon 12:01pm - 6:00pm
Evening 6:01pm to 12:00am
12am
6am
12pm
6pm
How far is Ontario from Chicago?
The flight distance between Chicago and Ontario is 2755km. Check all available flights on Wego.
Popular destinations from Ontario
Popular destinations from Chicago
Popular Hotels in Ontario
- Sheraton Ontario Airport Hotel
- Ayres Suites Ontario Mills Mall - Rancho Cucamonga
- Ontario Airport Hotel & Conference Center
- Country Inn & Suites by Radisson, Ontario at Ontario Mills, CA
- Holiday Inn ONTARIO AIRPORT
- Azure Hotel & Suites, Trademark Collection by Wyndham
- Comfort Inn & Suites Near Ontario Airport
- Hampton Inn & Suites Ontario
- Hyatt Place Ontario / Rancho Cucamonga
- Azure Hotel & Suites Ontario, A Trademark Collection Hotel