When are flight tickets from Chicago (CHI) to Ontario (ONT) the cheapest?

Airlines adjust prices for flights from Chicago to Ontario based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

How much do flights from Chicago (CHI) to Ontario (ONT) cost?

According to Trip.com's data, the lowest price is around IDR 3,917,479.

What's the most popular airline for non-stop flights from Chicago (CHI) to Ontario (ONT)?

United Airlines operates 1 non-stop flights from Chicago (CHI) to Ontario (ONT).

IDR 477,632 Cheap Flights from Chicago to Ontario (CHI to ONT)

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Cheap flight deals from Chicago to Ontario Starting at IDR 477,632

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Chicago to Ontario?

We monitor flight fares to help you find the best deals effortlessly

39
1016
1723
Mar
242
39
1016
1723
2430
Apr
316
713
1420
2127

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find cheap airlines flights from Chicago to Ontario

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines

From IDR 477,632

American Airlines

From IDR 1,589,864

Alaska Airlines

From IDR 1,675,076

Southwest Airlines

From IDR 1,693,015

Delta Air Lines

From IDR 1,746,833

United Airlines

From IDR 1,906,043

Spirit Airlines

From IDR 2,917,367

Hawaiian Airlines

From IDR 3,764,996

Alternative Cheap Routes from Chicago to Ontario

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Chicago to Ontario.

MDWONT
Mon, Mar 3
One way1 transfer
From IDR 477,632
ORDONT
Thu, Mar 6
One way1 transfer
From IDR 495,571

Frequently Asked Questions

When are flight tickets from Chicago (CHI) to Ontario (ONT) the cheapest?
Airlines adjust prices for flights from Chicago to Ontario based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Chicago (CHI) to Ontario (ONT) cost?
According to Trip.com's data, the lowest price is around IDR 3,917,479.
What's the most popular airline for non-stop flights from Chicago (CHI) to Ontario (ONT)?
United Airlines operates 1 non-stop flights from Chicago (CHI) to Ontario (ONT).

Flight Info | to

Cheapest direct flight price	IDR 477,632
Cheapest return ticket price	IDR 2,242,403
Off-season for travel	September
Peak season for travel	November
Flight distance	9,812.12 km
Popular airline	United Airlines

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