Cheap flights from Chicago Midway Airport to Los Angeles from $120

In general, February is the cheapest month to fly from Chicago Midway Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel during the month of February, then book flights to Ontario from Chicago Midway Airport during August instead. Flights to Ontario in August, while not as cheap as those in February, still average around $268.

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $434. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Chicago Midway Airport to Ontario for around $831.

At noon is the cheapest time of day to fly from Chicago Midway Airport to Ontario when you can find flight prices for as low as $268. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $541 on average. Flights to Ontario from Chicago Midway Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Chicago Midway to Ontario for the best Chicago Midway - Ontario flight prices

There is only 1 cabin class available to choose from on Chicago Midway Airport to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 8% on your flight if you consider stops on a Chicago Midway Airport to Ontario flight.

Southwest and Delta are the most popular carriers operating from Chicago Midway to Ontario

Southwest, Frontier and Delta are the top three most popular airlines that fly to Ontario from Chicago Midway Airport according to our data. Southwest is the first choice among our users, with 87% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 3 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

As of July 2026, there are 1 flights per day flying from Chicago Midway Airport to Ontario. The most common time of day flights depart is 11:00AM, with 43% of flights taking off at noon.

As of July 2026, there are 8 flights per week flying from Chicago Midway Airport to Ontario. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.