Airlines operating on route
Below you will find a list of airlines operating flights on the Chicago — Ontario route and the starting prices for flights of each specific airline on it.
Starting at $49
Starting at $63
Helping travelers to find the best flight offers
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Chicago to Ontario. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Chicago to Ontario
Below you will find a list of airlines operating flights on the Chicago — Ontario route and the starting prices for flights of each specific airline on it.
Starting at $49
Starting at $63
A direct flight is the most convenient and comfortable way to fly from Chicago to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.
Chicago — Los Angeles
05/31/2025
Departure date
Direct flight
WN1301
Starting at $518
Chicago — Los Angeles
06/13/2025
Departure date
Direct flight
WN3531
Starting at $187
Chicago — Los Angeles
06/19/2025
Departure date
Direct flight
WN2725
Starting at $202
Chicago — Los Angeles
07/03/2025
Departure date
Direct flight
WN3838
Starting at $127
Chicago — Los Angeles
07/15/2025
Departure date
Direct flight
WN2725
Starting at $124
Chicago — Los Angeles
10/02/2025
Departure date
Direct flight
AA3008
Starting at $180
Chicago — Los Angeles
10/14/2025
Departure date
Direct flight
UA1172
Starting at $153
Chicago — Los Angeles
11/23/2025
Departure date
Direct flight
AA1979
Starting at $248
Chicago — Los Angeles
06/01/2025
Departure date
Direct flight
F92445
Starting at $87
Chicago — Los Angeles
06/05/2025
Departure date
Direct flight
AA607
Starting at $228
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Chicago to Ontario:
Unable to find information about the schedule of direct flights from
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
We couldn't find any special offers for flights from Chicago to Ontario
The cheapest flight ticket from Chicago to Ontario according to data for the last 48 hours costs $56
Often the best time to buy tickets from Chicago to Ontario is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Chicago to Ontario can be found flying in these months: August, September, June.
The fastest flights from Chicago to Ontario start from 4 hours 26 minutes in the air.
The following airlines operate direct flights on the route Chicago — Ontario: Southwest Airlines, American Airlines, United Airlines
The cheapest one-way flight from Chicago to Ontario departs on 06/15/2025, is operated by Spirit Airlines and costs $56
The cheapest roundtrip flight from Chicago to Ontario departs on 11/10/2025, is operated by Spirit Airlines and costs $88
Fastest flight from Chicago to Ontario takes 4h 26m
There are direct flights on this route 6 days a week: Su, Mo, Tu, We, Th, and Fr
The distance between Chicago and Ontario is 2754km (1707 miles). There are 8 direct flights from Chicago to Ontario. The time difference between Chicago and Ontario is 2h . Flights from Chicago begin at 7:55 PM. The latest flight from Chicago departs at 7:55 PM.
