Cheap flights from Chicago to Ontario
Choose between Southwest Airline, United Airlines, or American Airlines to find the best price
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Cheap one-way trips starting from £31 from Chicago CHI to Ontario ONT
O Hare InternationalOntario International
One-way,
O Hare InternationalMontclair (Ontario)
One-way,
O Hare InternationalOntario International
One-way,
O Hare InternationalOntario International
One-way,
O Hare InternationalOntario International
One-way,
O Hare InternationalOntario International
One-way,
Cheap round trips starting from £68 from Chicago CHI to Ontario ONT
O Hare InternationalMontclair (Ontario)
Round trip, -
O Hare InternationalMontclair (Ontario)
Round trip, -
O Hare InternationalMontclair (Ontario)
Round trip, -
O Hare InternationalMontclair (Ontario)
Round trip, -
O Hare InternationalMontclair (Ontario)
Round trip, -
O Hare InternationalMontclair (Ontario)
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Weekly flights
Mondays | Tuesdays | Wednesdays | Thursdays | Fridays | Saturdays | Sundays | |
---|---|---|---|---|---|---|---|
Number of flights | 37 | 31 | 31 | 31 | - | 28 | 36 |
Fly direct with
Southwest Airline on and Saturdays.
Check-in for a flight from Chicago to Ontario
Name | Carrier code | IATA Code | Passport needed during booking | Airport check-in closes | Online check-in available |
---|---|---|---|---|---|
Southwest Airline | SWA | WN | No | Unknown | No |
United Airlines | UAL | UA | Yes | Unknown | No |
American Airlines | AAL | AA | Yes | Unknown | No |
Frontier Airlines | FFT | F9 | No | Unknown | No |
Delta Air Lines | DAL | DL | Yes | Unknown | No |
Frequently asked questions
How long does it take to travel from Chicago to Ontario?
What is the flight distance between Chicago and Ontario?
What airlines offer nonstop (direct) flights between Chicago and Ontario?
What are the most popular routes to and from Chicago?
What are the most popular routes to and from Ontario?
Which airports are there in Chicago?
What airports are near Chicago?
What airports are near Ontario?
What buses and trains depart from Chicago?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Chicago and Ontario?
What is Virtual Interlining and how do I use it?
Which airlines fly between Chicago and Ontario?
When's the best time to travel between Chicago and Ontario?
What flights operate between Chicago and Ontario?
How many airports are there near Chicago?
How many airports are there near Ontario?
Is it possible to reach Chicago by bus or train?
What time do nonstop (direct) flights between Chicago and Ontario depart?
What time do nonstop (direct) flights between Chicago and Ontario arrive?
What time do flights between Chicago and Ontario depart?
What time do flights between Chicago and Ontario arrive?
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
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