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Cheap flights from Chicago O'Hare Intl Airport to Ontario from $53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Ontario departing on 2/25. 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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Find the cheapest flights from Chicago O'Hare Intl Airport to Los Angeles

Cheap round-trip flights

These are some of the best round-trip flight deals from Chicago O'Hare Intl Airport to Los Angeles that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Chicago O'Hare Intl Airport to Los Angeles.

Cheap last minute flights

Planning a quick getaway from Chicago O'Hare Intl Airport to Los Angeles? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Los Angeles, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Chicago O'Hare Intl Airport to Los Angeles

Find recent round-trip train or bus tickets from Chicago O'Hare Intl Airport to Los Angeles.

All round-trip flight deals to Los Angeles

The cheapest plane tickets to Los Angeles found on KAYAK recently.
9:29 am - 6:58 pmORD-ONT
11h 29m1 stop
7:58 pm - 9:51 amONT-ORD
11h 53m1 stop
$108Frontier
Find Deal
周一, 2月 24 - 周二, 2月 25
6:36 pm - 7:11 amORD-ONT
14h 35m1 stop
6:34 pm - 10:37 pmONT-ORD
26h 03m1 stop
$116Frontier
Find Deal
周四, 2月 6 - 周一, 2月 10
7:59 pm - 7:26 amORD-ONT
13h 27m1 stop
8:29 pm - 5:05 amONT-ORD
6h 36m1 stop
$118Frontier
Find Deal
周六, 2月 22 - 周六, 3月 1
11:47 am - 7:31 pmORD-ONT
9h 44m2 stops
11:59 pm - 8:21 amONT-ORD
6h 22m1 stop
$251American Airlines
Find Deal
周六, 1月 25 - 周五, 2月 21
5:45 am - 11:50 amORD-ONT
8h 05m1 stop
7:05 am - 6:47 pmONT-ORD
9h 42m1 stop
$256Delta
Find Deal
周三, 1月 22 - 周六, 2月 22
5:10 pm - 10:52 pmORD-ONT
7h 42m1 stop
1:21 pm - 9:22 pmONT-ORD
6h 01m1 stop
$257Delta
Find Deal
周六, 1月 25 - 周六, 2月 1
6:00 am - 11:58 amORD-ONT
7h 58m1 stop
6:00 am - 3:33 pmONT-ORD
7h 33m1 stop
$281American Airlines
Find Deal
周二, 1月 21 - 周日, 2月 9
7:00 am - 3:55 pmORD-ONT
10h 55m2 stops
1:40 pm - 10:35 pmONT-ORD
6h 55m1 stop
$296Southwest
Find Deal
周六, 2月 22 - 周三, 2月 26
6:30 am - 2:29 pmORD-ONT
9h 59m1 stop
6:00 am - 5:06 pmONT-ORD
9h 06m1 stop
$332United Airlines
Find Deal
周三, 3月 5 - 周二, 3月 11
2:39 pm - 8:51 pmORD-ONT
8h 12m1 stop
10:47 am - 9:26 pmONT-ORD
8h 39m1 stop
$336United Airlines
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周三, 1月 22 - 周日, 1月 26
10:56 am - 6:58 pmORD-ONT
10h 02m1 stop
$53Frontier
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周二, 2月 25
10:56 am - 5:58 pmORD-ONT
9h 02m1 stop
$54Frontier
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周三, 2月 12
5:10 pm - 10:52 pmORD-ONT
7h 42m1 stop
$128Delta
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周六, 2月 1
1:45 pm - 10:32 pmORD-ONT
10h 47m2 stops
$133Delta
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周三, 1月 22
6:00 am - 11:55 amORD-ONT
7h 55m1 stop
$159American Airlines
Find Deal
周日, 4月 20
2:39 pm - 8:51 pmORD-ONT
8h 12m1 stop
$168United Airlines
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周三, 1月 22
8:45 am - 8:29 pmORD-ONT
13h 44m2 stops
$173United Airlines
Find Deal
周四, 1月 23
11:47 am - 6:24 pmORD-ONT
8h 37m2 stops
$174American Airlines
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周三, 2月 12
6:30 am - 2:50 pmORD-ONT
10h 20m2 stops
$194Southwest
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周六, 2月 15
6:15 am - 1:00 pmORD-ONT
8h 45m2 stops
$219Southwest
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周日, 2月 16
8:34 pm - 7:09 amORD-ONT
12h 35m1 stop
12:59 am - 11:46 pmONT-ORD
20h 47m1 stop
$409Frontier
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周日, 12月 29 - 周二, 12月 31
7:30 am - 12:08 pmORD-ONT
6h 38m1 stop
1:15 pm - 9:39 pmONT-ORD
6h 24m1 stop
$518Delta
Find Deal
周三, 12月 25 - 周一, 12月 30
5:25 pm - 11:41 pmORD-ONT
8h 16m1 stop
6:52 am - 10:52 pmONT-ORD
14h 00m2 stops
$523Delta
Find Deal
周四, 12月 26 - 周日, 12月 29
3:18 pm - 10:36 pmORD-ONT
9h 18m2 stops
6:52 am - 8:59 pmONT-ORD
12h 07m2 stops
$528Delta
Find Deal
周三, 12月 25 - 周五, 12月 27
8:34 pm - 12:45 pmORD-ONT
18h 11m1 stop
12:59 am - 11:46 pmONT-ORD
20h 47m1 stop
$533Frontier
Find Deal
周日, 12月 29 - 周日, 1月 5
3:10 pm - 9:15 pmORD-ONT
8h 05m1 stop
5:20 am - 2:25 pmONT-ORD
7h 05m1 stop
$563Southwest
Find Deal
周日, 12月 29 - 周四, 1月 2
5:00 am - 9:56 amORD-ONT
6h 56m1 stop
11:59 pm - 9:25 amONT-ORD
7h 26m1 stop
$568American Airlines
Find Deal
周四, 12月 26 - 周五, 1月 3
4:48 pm - 10:29 pmORD-ONT
7h 41m1 stop
5:05 am - 1:15 pmONT-ORD
6h 10m1 stop
$604United Airlines
Find Deal
周三, 12月 25 - 周一, 1月 6
4:20 pm - 11:00 pmORD-ONT
8h 40m1 stop
5:05 am - 1:15 pmONT-ORD
6h 10m1 stop
$648United Airlines
Find Deal
周六, 12月 28 - 周三, 1月 1
3:10 pm - 9:05 pmORD-ONT
7h 55m2 stops
11:25 am - 10:35 pmONT-ORD
9h 10m2 stops
$688Southwest
Find Deal
周日, 12月 29 - 周五, 1月 3

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

Our best Alaska Airlines deals on Chicago O'Hare Intl Airport to Ontario flight tickets
Alaska Airlines
Jan 29
ORD2:07 pmChicago O'Hare Intl
8h 06m
1 stop
ONT8:13 pmOntario
Feb 2
ONT6:00 amOntario
9h 59m
1 stop
ORD5:59 pmChicago O'Hare Intl
Alaska Airlines
Jan 22
ORD2:07 pmChicago O'Hare Intl
8h 06m
1 stop
ONT8:13 pmOntario
Jan 27
ONT6:00 amOntario
9h 59m
1 stop
ORD5:59 pmChicago O'Hare Intl
Alaska Airlines
Jan 31
ORD3:35 pmChicago O'Hare Intl
8h 38m
1 stop
ONT10:13 pmOntario
Feb 4
ONT5:44 pmOntario
22h 15m
2 stops
ORD5:59 pmChicago O'Hare Intl

Frontier flights from Chicago O'Hare Intl Airport to Ontario

Our best Frontier deals on Chicago O'Hare Intl Airport to Ontario flight tickets
Frontier
Feb 24
ORD9:29 amChicago O'Hare Intl
11h 29m
1 stop
ONT6:58 pmOntario
Feb 25
ONT7:58 pmOntario
11h 53m
1 stop
ORD9:51 amChicago O'Hare Intl
Frontier
Feb 6
ORD6:36 pmChicago O'Hare Intl
14h 35m
1 stop
ONT7:11 amOntario
Feb 10
ONT6:34 pmOntario
26h 03m
1 stop
ORD10:37 pmChicago O'Hare Intl
Frontier
Feb 22
ORD7:59 pmChicago O'Hare Intl
13h 27m
1 stop
ONT7:26 amOntario
Mar 1
ONT8:29 pmOntario
6h 36m
1 stop
ORD5:05 amChicago O'Hare Intl

See travel insights to Los Angeles from

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

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 to Ontario?

In general, November is the cheapest month to fly from Chicago O'Hare Intl Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $148. If you aren’t able to travel during the month of November, then book flights to Ontario from Chicago O'Hare Intl Airport during September instead. Flights to Ontario in September, while not as cheap as those in November, still average around $166.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $303. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Ontario for around $437.

What is the cheapest time of day to depart on your flight to Ontario?

In the evening is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Ontario when you can find flight prices for as low as $223. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $400 on average. Flights to Ontario from Chicago O'Hare Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Ontario?

Most flyers found that booking tickets 36 days in advance of their planned departure date is the best time to get cheap flights to Ontario. During this timeframe, flight prices are around $337. However, in the past 72 hours, people saw flights from Chicago O'Hare Intl Airport for as low as $108.

Can stopping save me money on Chicago O'Hare Intl Airport to Ontario flights?

You could potentially save up to 57% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Ontario flight.

How have Chicago O'Hare Intl Airport to Ontario flight prices changed over time?

As of December 2024, prices for Chicago O'Hare Intl Airport to Ontario flights are approximately 58% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Ontario (ORD to ONT) flight deals and tips

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

Best Price Found

$53

Fastest flight time

6h 24m

Direct flights

None

Airports in Ontario

1 airport
The best one-way flight to Ontario from Chicago O'Hare Intl Airport in the past 72 hours is $53. The best round-trip flight deal from Chicago O'Hare Intl Airport to Ontario found on momondo in the last 72 hours is $108.
The fastest flight from Chicago O'Hare Intl Airport to Ontario takes 6h 24m
There are no direct flights from Chicago O'Hare Intl Airport to Ontario. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Ontario Airport.
There is 1 airport near Ontario: Ontario (ONT)

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

    A flight from Chicago O'Hare Intl to Ontario will travel around 1697.7 mi. 6h 33m is a normal flight duration for this route.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Ontario?


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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Ontario with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $122Free CancellationRating
6.3
8,107 reviews
Search Spirit Airlines flights
FrontierPriceFrom $124Free CancellationRating
6.1
3,468 reviews
Search Frontier flights
DeltaPriceFrom $256Free CancellationRating
8.0
8,580 reviews
Search Delta flights
SouthwestPriceFrom $256Free CancellationRating
8.1
4,765 reviews
Search Southwest flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $353Free CancellationRating
7.4
9,009 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Ontario from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

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

Yes. All flights to Ontario from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Ontario from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Chicago to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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