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Cheap flights from Ontario to Chicago O'Hare Intl Airport from $63

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Chicago O'Hare Intl Airport departing on 4/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap Ontario to Chicago O'Hare Intl Airport (ONT to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Chicago O'Hare Intl Airport

Best Price Found

$63

Fastest flight time

6h 12m

Direct flights

None
The best one-way flight to Chicago O'Hare Intl Airport from Ontario in the past 72 hours is $63. The best round-trip flight deal from Ontario to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $138.
The fastest flight from Ontario to Chicago O'Hare Intl Airport takes 6h 12m
There are no direct flights from Ontario to Chicago O'Hare Intl Airport. Popular non-direct route for this connection is Ontario Airport - Chicago O'Hare Intl Airport.

How to get the cheapest flight ticket from Ontario to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Ontario to Chicago O'Hare Intl Airport?

October. The cheapest time of year to fly to Chicago O'Hare Intl Airport from Ontario is October. Most expensive is February

What is the cheapest day to depart Ontario for Chicago O'Hare Intl Airport?

Friday. The cheapest day of the week is typically Friday. The most expensive is typically Sunday

When is the cheapest time to fly from Ontario to Chicago O'Hare Intl Airport?

In the afternoon. Ontario to Chicago O'Hare Intl Airport flights are approximately 17% more expensive in the morning than in the afternoon

What is the cheapest airline that flies to Chicago O'Hare Intl Airport from Ontario?

Spirit Airlines. American Airlines, Delta, and Frontier are the most popular carriers operating from Ontario to Chicago O'Hare Intl Airport

How far in advance should you book Ontario to Chicago O'Hare Intl Airport flights?

58 days before. The cheapest time to buy a flight from Ontario to Chicago O'Hare Intl Airport is approximately 58 days to departure

When traveling from Ontario to Chicago, the most popular airport to fly into is Chicago O'Hare Intl Airport. The majority of travelers flying into Chicago O'Hare Intl Airport from Ontario are departing from Ontario Airport. If you are looking for alternate airports to fly out of when traveling to Chicago, you can try flying out of Los Angeles Airport (in Los Angeles), Burbank Bob Hope Airport (in Burbank), or Santa Ana J. Wayne/Orange Cnty Airport (in Santa Ana). In March, $89 is typically the cheapest round trip price you’ll find from Ontario to Chicago which you can find when you fly LAX — ORD.

Los Angeles Airport (LAX) to Chicago O'Hare Intl Airport (ORD)$89
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Ontario Airport (ONT) to Chicago O'Hare Intl Airport (ORD)$136
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Burbank Bob Hope Airport (BUR) to Chicago O'Hare Intl Airport (ORD)$160
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Santa Ana J. Wayne/Orange Cnty Airport (SNA) to Chicago O'Hare Intl Airport (ORD)$152
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Long Beach Municipal Airport (LGB) to Chicago O'Hare Intl Airport (ORD)$278
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Easily compare round-trip flights from Ontario to Chicago O'Hare Intl Airport

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to Chicago O'Hare Intl Airport by changing tabs
Frontier
Apr 26
ONT12:55 amOntario
22h 01m
1 stop
ORD12:56 amChicago O'Hare Intl
May 8
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
Multiple Airlines
May 7
ONT7:16 amOntario
15h 40m
1 stop
ORD12:56 amChicago O'Hare Intl
May 12
ORD8:00 amChicago O'Hare Intl
16h 09m
2 stops
ONT10:09 pmOntario
Frontier
Apr 20
ONT7:26 amOntario
15h 30m
1 stop
ORD12:56 amChicago O'Hare Intl
Apr 27
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
Frontier
Apr 23
ONT8:48 pmOntario
12h 41m
1 stop
ORD11:29 amChicago O'Hare Intl
Apr 24
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
Frontier
May 7
ONT12:59 amOntario
21h 57m
1 stop
ORD12:56 amChicago O'Hare Intl
May 15
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
Frontier
Apr 17
ONT7:26 amOntario
15h 30m
1 stop
ORD12:56 amChicago O'Hare Intl
Apr 23
ORD12:29 pmChicago O'Hare Intl
9h 18m
1 stop
ONT7:47 pmOntario

Find the cheapest one-way flights from Ontario to Chicago O'Hare Intl Airport

If you're looking for one-way flights from Ontario to Chicago O'Hare Intl Airport, view some of our deals below provided by American Airlines and Frontier
Frontier
Apr 23
ONT12:59 amOntario
21h 57m
1 stop
ORD12:56 amChicago O'Hare Intl
Multiple Airlines
Apr 22
ONT6:51 pmOntario
9h 38m
1 stop
ORD6:29 amChicago O'Hare Intl
Frontier
May 1
ONT7:26 amOntario
15h 30m
1 stop
ORD12:56 amChicago O'Hare Intl

Search last-minute flights to Chicago O'Hare Intl Airport from Ontario

Find and compare round-trip flight prices for your last-minute flight from Ontario to Chicago O'Hare Intl Airport
Frontier
Apr 4
ONT3:56 pmOntario
7h 24m
1 stop
ORD1:20 amChicago O'Hare Intl
Apr 10
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
Multiple Airlines
Apr 3
ONT9:00 amOntario
19h 55m
2 stops
ORD6:55 amChicago O'Hare Intl
Apr 8
ORD10:46 pmChicago O'Hare Intl
18h 20m
1 stop
ONT3:06 pmOntario
American Airlines
Apr 7
ONT2:53 pmOntario
6h 15m
1 stop
ORD11:08 pmChicago O'Hare Intl
Apr 12
ORD1:20 pmChicago O'Hare Intl
9h 22m
1 stop
ONT8:42 pmOntario
Delta
Apr 4
ONT1:20 pmOntario
6h 15m
1 stop
ORD9:35 pmChicago O'Hare Intl
Apr 8
ORD6:59 pmChicago O'Hare Intl
6h 47m
1 stop
ONT11:46 pmOntario
Frontier
Apr 4
ONT3:56 pmOntario
7h 24m
1 stop
ORD1:20 amChicago O'Hare Intl
Apr 13
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
United Airlines
Apr 7
ONT1:36 pmOntario
5h 36m
1 stop
ORD9:12 pmChicago O'Hare Intl
Apr 8
ORD4:19 pmChicago O'Hare Intl
6h 21m
1 stop
ONT8:40 pmOntario

Best airlines flying from Ontario to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Ontario to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $105Free CancellationRating
6.4
8,843 reviews
Search Spirit Airlines flights
FrontierPriceFrom $189Free CancellationRating
6.3
4,263 reviews
Search Frontier flights
United AirlinesPriceFrom $212Free CancellationRating
7.4
11,481 reviews
Search United Airlines flights
DeltaPriceFrom $282Free CancellationRating
8.0
11,402 reviews
Search Delta flights
American AirlinesPriceFrom $325Free CancellationRating
7.3
15,181 reviews
Search American Airlines flights

United Airlines flights from Ontario to Chicago O'Hare Intl Airport

Our best United Airlines deals on Ontario to Chicago O'Hare Intl Airport flight tickets
United Airlines
Apr 7
ONT1:36 pmOntario
5h 36m
1 stop
ORD9:12 pmChicago O'Hare Intl
Apr 8
ORD4:19 pmChicago O'Hare Intl
6h 21m
1 stop
ONT8:40 pmOntario
United Airlines
Apr 5
ONT1:36 pmOntario
8h 40m
1 stop
ORD12:16 amChicago O'Hare Intl
Apr 8
ORD4:21 pmChicago O'Hare Intl
8h 43m
1 stop
ONT11:04 pmOntario
United Airlines
Apr 3
ONT1:36 pmOntario
7h 16m
1 stop
ORD10:52 pmChicago O'Hare Intl
Apr 4
ORD8:49 amChicago O'Hare Intl
5h 51m
1 stop
ONT12:40 pmOntario

Frontier flights from Ontario to Chicago O'Hare Intl Airport

Our best Frontier deals on Ontario to Chicago O'Hare Intl Airport flight tickets
Frontier
Apr 26
ONT12:55 amOntario
22h 01m
1 stop
ORD12:56 amChicago O'Hare Intl
May 8
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
Frontier
Apr 20
ONT7:26 amOntario
15h 30m
1 stop
ORD12:56 amChicago O'Hare Intl
Apr 27
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario
Frontier
Apr 23
ONT8:48 pmOntario
12h 41m
1 stop
ORD11:29 amChicago O'Hare Intl
Apr 24
ORD6:27 pmChicago O'Hare Intl
7h 32m
1 stop
ONT11:59 pmOntario

  • How far is Ontario to Chicago O'Hare Intl by plane?

    Chicago O'Hare Intl is 1697.7 mi away from Ontario. In terms of flight time, this usually takes a little over 6h 12m.

  • When did momondo last update prices for flights from Ontario Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Ontario Airport to Chicago O'Hare Intl Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Ontario Airport to Chicago O'Hare Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


Alternative routes for Ontario to Chicago O'Hare Intl Airport

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Los Angeles to Chicago O'Hare Intl Airport Flights
Fastest flight time4h 00m
Cheapest price$109
San Francisco to Chicago O'Hare Intl Airport Flights
Fastest flight time4h 10m
Cheapest price$142
Los Angeles to Chicago Midway Airport Flights
Fastest flight time4h 05m
Cheapest price$133
Burbank to Chicago O'Hare Intl Airport Flights
Fastest flight time5h 53m
Cheapest price$160
Santa Ana to Chicago O'Hare Intl Airport Flights
Fastest flight time3h 50m
Cheapest price$152
San Diego to Chicago O'Hare Intl Airport Flights
Fastest flight time3h 50m
Cheapest price$129
Oakland, California to Chicago O'Hare Intl Airport Flights
Fastest flight time6h 08m
Cheapest price$161
San Francisco to Chicago Midway Airport Flights
Fastest flight time4h 11m
Cheapest price$107
Ontario to Chicago Midway Airport Flights
Fastest flight time3h 45m
Cheapest price$136
San Jose to Chicago O'Hare Intl Airport Flights
Fastest flight time4h 08m
Cheapest price$164
San Diego to Chicago Midway Airport Flights
Fastest flight time3h 50m
Cheapest price$123
Santa Ana to Chicago Midway Airport Flights
Fastest flight time7h 08m
Cheapest price$148

Similar Ontario to Chicago O'Hare Intl Airport flights

Flexible with your destination? Broaden your search and find flights similar to your Ontario to Chicago O'Hare Intl Airport route

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Chicago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from Ontario.

Can I find flights from Ontario to Chicago with flexible booking policies on momondo?

All flight searches from Ontario to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Chicago?

Once all potential Ontario to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Chicago right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Ontario and alert you when they change.


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