Fare Guide
Estimated lowest fares found within 7 days
Cheapest Airline
The cheapest airline(s) flying from Ontario to Chicago is Frontier Airlines.
Cheapest Month
October
Travel Period: October 2024 - September 2025
The cheapest month(s) to fly from Ontario to Chicago is October.
Cheapest Day of the Week
Saturday
The cheapest day(s) of the week to fly from Ontario to Chicago is Saturday.
How far is Chicago from Ontario?
The flight distance between Ontario and Chicago is 2755km. Check all available flights on Wego.
Popular Destinations from Chicago
Popular Destinations from Ontario
Popular Hotels in Chicago
- Clarion Inn Elmhurst - Oak Brook near I-88, I-290, I-294
- The Royal Sonesta Chicago Downtown
- Club Quarters Hotel, Central Loop, Chicago
- The Ritz-Carlton, Chicago
- Fairmont Chicago at Millennium Park Gold Experience
- Swissôtel Chicago
- Pendry Chicago
- Hotel Felix Chicago
- Hotel Saint Clair
- Best Western River North Hotel