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Cheap flights from Ontario (ONT) to O'Hare Intl (ORD) from $71

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — ORD
May 27 — Jun 31
From?
To?
Mon 5/27
Mon 6/3
1 adult, Economy
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The best prices from Ontario to Chicago O'Hare Intl are usually found in May or April, booked 42 days in advance, depart on a Tuesday or Friday and return on a Saturday

Cheap flight deals from Ontario to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 22, 2024.

Popular in

August

Cheapest in

May

Round-trip from

$223

One-way from

$71
High demand for flights, 16% potential price rise
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Best time to find cheap flights, 20% potential price drop
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From Ontario to Chicago O'Hare Intl
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One-way flight from Ontario to Chicago O'Hare Intl
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What is the cheapest day to fly round-trip from Ontario to Chicago O'Hare Intl Airport?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 27% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Ontario to Chicago O'Hare Intl Airport?

Find a great deal and save up to 73% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Chicago O'Hare Intl Airport within the next two weeks, with the cheapest ticket starting at $319.

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

January is one of the best times of the year to fly to Chicago O'Hare Intl Airport from Ontario. Prices for January average $314 per person but you can even find prices for as low as $135. The most expensive prices can be found in the month of March. Opting for a January flight can save you 20% on your journey compared to booking in March

When is the cheapest time to fly from Ontario to Chicago O'Hare Intl Airport (ONT - ORD)?

It’s typically best to fly out from Ontario to Chicago O'Hare Intl Airport in the afternoon. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Frontier flights from Ontario to O'Hare Intl

Explore cheap flight options specifically provided by Frontier for the route between Ontario and O'Hare Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Peruse some of the lowest-priced Frontier flights we've found from Ontario to Chicago. It's recommended that users confirm their flight details before booking.
Fri 8/3012:49 amONT - ORD
1 stop21h 22mFrontier
Tue 9/37:30 pmORD - ONT
1 stop19h 52mFrontier
Deal found 5/21$150
Tue 8/2712:49 amONT - ORD
1 stop22h 14mFrontier
Wed 9/47:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/21$154
Tue 8/1312:49 amONT - ORD
1 stop22h 14mFrontier
Tue 8/207:15 pmORD - ONT
1 stop12h 52mFrontier
Deal found 5/21$155
Tue 6/45:41 pmONT - ORD
1 stop9h 19mFrontier
Wed 6/58:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/21$156
Mon 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
Sat 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/21$157
Tue 6/1110:31 pmONT - ORD
1 stop28h 54mFrontier
Sat 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/21$158
Tue 6/412:59 amONT - ORD
1 stop17h 49mFrontier
Sat 6/88:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/21$159
Mon 6/312:59 amONT - ORD
1 stop17h 51mFrontier
Wed 6/59:53 pmORD - ONT
1 stop15h 06mFrontier
Deal found 5/21$160
Wed 5/297:45 pmONT - ORD
1 stop7h 15mFrontier
Tue 6/48:00 amORD - ONT
1 stop7h 24mFrontier
Deal found 5/22$164

Cheap Delta flights from Ontario to O'Hare Intl

Explore cheap flight options specifically provided by Delta for the route between Ontario and O'Hare Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Some of the lowest-priced Delta flights we've found at this time heading from Ontario to Chicago. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Wed 8/212:00 pmONT - ORD
1 stop7h 54mDelta
Fri 8/301:35 pmORD - ONT
2 stops10h 37mDelta
Deal found 5/21$314
Wed 5/296:50 amONT - ORD
2 stops13h 49mDelta
Tue 6/48:45 amORD - ONT
2 stops13h 21mDelta
Deal found 5/22$394
Mon 5/276:00 amONT - ORD
1 stop8h 47mDelta
Wed 5/2912:29 pmORD - ONT
1 stop9h 37mDelta
Deal found 5/21$405
Mon 5/276:50 amONT - ORD
1 stop10h 51mDelta
Thu 5/306:07 amORD - ONT
2 stops8h 06mDelta
Deal found 5/21$410
Thu 5/306:42 pmONT - ORD
2 stops11h 57mDelta
Fri 6/73:55 pmORD - ONT
2 stops9h 47mDelta
Deal found 5/21$510
Sat 6/16:42 pmONT - ORD
2 stops11h 57mDelta
Tue 6/48:45 amORD - ONT
2 stops13h 21mDelta
Deal found 5/21$530
Thu 5/306:42 pmONT - ORD
2 stops11h 57mDelta
Sun 6/23:32 pmORD - ONT
1 stop9h 15mDelta
Deal found 5/22$545
Mon 5/275:45 amONT - ORD
2 stops10h 32mDelta
Sun 6/26:00 amORD - ONT
1 stop9h 33mDelta
Deal found 5/22$550
Mon 5/275:45 amONT - ORD
2 stops11h 25mDelta
Wed 5/297:30 pmORD - ONT
1 stop6h 13mDelta
Deal found 5/21$554

Cheap Ontario to O'Hare Intl flights in May & June 2024

Find cheap flight options from Ontario to O'Hare Intl specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Prices were last updated on May 22, 2024.
Check out some of the best flight deals from Ontario to Chicago in 2024. Check back soon for alternative fares.
Mon 6/312:59 amONT - ORD
1 stop17h 51mFrontier
Wed 6/59:53 pmORD - ONT
1 stop15h 06mFrontier
Deal found 5/21$160
Mon 6/312:55 pmONT - ORD
1 stop14h 05mFrontier
Wed 6/58:23 pmORD - ONT
1 stop16h 33mFrontier
Deal found 5/21$165
Tue 6/117:26 pmONT - ORD
1 stop7h 59mFrontier
Wed 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/21$166
Tue 5/2812:59 amONT - ORD
1 stop22h 14mFrontier
Wed 6/58:23 pmORD - ONT
1 stop16h 33mFrontier
Deal found 5/21$167
Sat 6/15:41 pmONT - ORD
1 stop9h 19mFrontier
Tue 6/48:00 amORD - ONT
1 stop7h 24mFrontier
Deal found 5/21$168
Wed 6/58:55 pmONT - ORD
1 stop6h 28mFrontier
Sun 6/98:23 pmORD - ONT
1 stop18h 47mFrontier
Deal found 5/21$169
Fri 5/3112:59 amONT - ORD
1 stop21h 19mFrontier
Tue 6/47:59 pmORD - ONT
1 stop23h 49mFrontier
Deal found 5/22$170
Wed 6/2610:55 pmONT - ORD
1 stop28h 26mFrontier
Tue 9/37:30 pmORD - ONT
1 stop24h 39mFrontier
Deal found 5/20$174
Tue 5/2810:42 pmONT - ORD
1 stop28h 18mFrontier
Tue 6/116:00 amORD - ONT
1 stop19h 59mFrontier
Deal found 5/21$175

Ontario to O'Hare Intl 2024 flight deals

Discover exclusive flight deals for travel between Ontario and O'Hare Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Check out some of the best flight deals from Ontario to Chicago in 2024. Check back soon for alternative fares.
Mon 6/312:59 amONT - ORD
1 stop17h 51mFrontier
Wed 6/59:53 pmORD - ONT
1 stop15h 06mFrontier
Deal found 5/21$160
Mon 6/312:55 pmONT - ORD
1 stop14h 05mFrontier
Wed 6/58:23 pmORD - ONT
1 stop16h 33mFrontier
Deal found 5/21$165
Wed 8/148:35 pmONT - ORD
1 stop6h 12mFrontier
Tue 8/208:00 amORD - ONT
1 stop6h 32mFrontier
Deal found 5/22$166
Tue 5/2812:59 amONT - ORD
1 stop22h 14mFrontier
Wed 6/58:23 pmORD - ONT
1 stop16h 33mFrontier
Deal found 5/21$167
Sat 6/15:41 pmONT - ORD
1 stop9h 19mFrontier
Tue 6/48:00 amORD - ONT
1 stop7h 24mFrontier
Deal found 5/21$168
Wed 6/58:55 pmONT - ORD
1 stop6h 28mFrontier
Sun 6/98:23 pmORD - ONT
1 stop18h 47mFrontier
Deal found 5/21$169
Fri 5/3112:59 amONT - ORD
1 stop21h 19mFrontier
Tue 6/47:59 pmORD - ONT
1 stop23h 49mFrontier
Deal found 5/22$170
Wed 6/2610:55 pmONT - ORD
1 stop28h 26mFrontier
Tue 9/37:30 pmORD - ONT
1 stop24h 39mFrontier
Deal found 5/20$174
Tue 5/2810:42 pmONT - ORD
1 stop28h 18mFrontier
Tue 6/116:00 amORD - ONT
1 stop19h 59mFrontier
Deal found 5/21$175

Ontario to O'Hare Intl flights leaving soon

Find last-minute flight options from Ontario to O'Hare Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Have a look at some of the last-minute flights available departing from Ontario to Chicago. Users should be sure to double check the price, date, and time of their last-minute flight.
Wed 5/297:45 pmONT - ORD
1 stop7h 15mFrontier
Tue 6/48:00 amORD - ONT
1 stop7h 24mFrontier
Deal found 5/22$164
Tue 5/2812:59 amONT - ORD
1 stop22h 14mFrontier
Wed 6/58:23 pmORD - ONT
1 stop16h 33mFrontier
Deal found 5/21$167
Sat 6/15:41 pmONT - ORD
1 stop9h 19mFrontier
Tue 6/48:00 amORD - ONT
1 stop7h 24mFrontier
Deal found 5/21$168
Fri 5/3112:59 amONT - ORD
1 stop21h 19mFrontier
Tue 6/47:59 pmORD - ONT
1 stop23h 49mFrontier
Deal found 5/22$170
Tue 5/2810:42 pmONT - ORD
1 stop28h 18mFrontier
Tue 6/116:00 amORD - ONT
1 stop19h 59mFrontier
Deal found 5/21$175
Fri 5/3112:59 amONT - ORD
1 stop21h 19mFrontier
Wed 6/59:53 pmORD - ONT
1 stop15h 06mFrontier
Deal found 5/22$178
Tue 5/2812:59 amONT - ORD
1 stop22h 14mFrontier
Sat 6/17:59 pmORD - ONT
1 stop15h 35mFrontier
Deal found 5/21$179
Wed 5/297:45 pmONT - ORD
1 stop7h 15mFrontier
Wed 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/20$180
Tue 5/2810:42 pmONT - ORD
1 stop28h 18mFrontier
Tue 6/48:00 amORD - ONT
1 stop17h 59mFrontier
Deal found 5/21$181

One-way flights to O'Hare Intl from Ontario

Search for one-way flight options from Ontario to O'Hare Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Users traveling one-way from Ontario to Chicago can select one of these great deals. Users in need of a round-trip flight from Ontario to Chicago instead should update the search form at the top of page.
Wed 8/218:35 pmONT - ORD
1 stop6h 12mFrontier
Deal found 5/20$71
Mon 6/2412:49 amONT - ORD
1 stop21h 51mFrontier
Deal found 5/21$74
Wed 6/58:55 pmONT - ORD
1 stop6h 28mFrontier
Deal found 5/22$78
Wed 8/218:35 pmONT - ORD
1 stop6h 12mFrontier
Deal found 5/22$79
Tue 8/2012:49 amONT - ORD
1 stop22h 14mFrontier
Deal found 5/20$80
Sat 6/87:15 pmONT - ORD
1 stop8h 22mFrontier
Deal found 5/21$81
Wed 6/128:41 pmONT - ORD
1 stop6h 44mFrontier
Deal found 5/21$82
Wed 6/128:41 pmONT - ORD
1 stop6h 44mFrontier
Deal found 5/22$83
Wed 7/108:17 amONT - ORD
1 stop13h 16mFrontier
Deal found 5/22$85

Find flights from Ontario to O'Hare Intl within your budget

Customize your flight search to find flights from Ontario to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$150 - $314

Route

Depart

Return

Price

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Fri 8/30

1 stop21h 22m

Chicago O'Hare Intl

Tue 9/3

1 stop19h 52m

$150

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Tue 8/27

1 stop22h 14m

Chicago O'Hare Intl

Wed 9/4

1 stop13h 38m

$154

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Tue 8/13

1 stop22h 14m

Chicago O'Hare Intl

Tue 8/20

1 stop12h 52m

$155

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Tue 6/4

1 stop9h 19m

Chicago O'Hare Intl

Wed 6/5

1 stop12h 40m

$156

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Mon 6/10

1 stop21h 41m

Chicago O'Hare Intl

Sat 6/15

1 stop12h 28m

$157

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Tue 6/11

1 stop28h 54m

Chicago O'Hare Intl

Sat 6/15

1 stop12h 28m

$158

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Tue 6/4

1 stop17h 49m

Chicago O'Hare Intl

Sat 6/8

1 stop12h 28m

$159

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Wed 9/25

1 stop6h 12m

Chicago O'Hare Intl

Sat 9/28

2 stops17h 20m

$303

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Wed 8/21

1 stop7h 54m

Chicago O'Hare Intl

Fri 8/30

2 stops10h 37m

$314

Flights are sorted by cheapest first

Deals found on 5/21

When is the best time to book a flight from Ontario to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to O'Hare Intl. Price data was last updated on May 10, 2024.
The price you pay for your flight from Ontario to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to O'Hare Intl. Price data was last updated on May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Chicago O'Hare Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature and rainfall totals by month.

CHI

Temperature

23 - 73.4 °F

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated May 22, 2024.
Read through reviews of airlines operating flights from Ontario to Chicago, such as Frontier, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,009 reviews
Check prices

Crew

8.7

Food

7.3

Overall

8.2

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
6,009 reviews
Southwest
8.2
Very good
6,009 reviews
Check prices

Crew

8.7

Food

7.3

Overall

8.2

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.1
Very good
9,171 reviews
Southwest
8.2
Very good
6,009 reviews
Check prices

Crew

8.7

Food

7.3

Overall

8.2

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
10,585 reviews
Southwest
8.2
Very good
6,009 reviews
Check prices

Crew

8.7

Food

7.3

Overall

8.2

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
10,870 reviews
Southwest
8.2
Very good
6,009 reviews
Check prices

Crew

8.7

Food

7.3

Overall

8.2

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.3
Good
14,421 reviews
Southwest
8.2
Very good
6,009 reviews
Check prices

Crew

8.7

Food

7.3

Overall

8.2

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Chicago O'Hare Intl?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Chicago O'Hare Intl from Ontario. Booking flights from Ontario (ONT) to Chicago O'Hare Intl should be relatively easy as there are 0 daily outbound flights to Chicago O'Hare Intl from 5 different airlines.

  • Can I find flights from Ontario to Chicago O'Hare Intl Airport for under $200 on Cheapflights?

    Yes, there are multiple flights from Ontario to Chicago O'Hare Intl Airport for under $200. The cheapest flight booked recently is on Frontier for just $150, but on average you can expect to pay $166.

  • Are there last-minute flights available from Ontario to Chicago O'Hare Intl Airport for under $200?

    There are currently 20+ open flights from Ontario to Chicago O'Hare Intl Airport within the next 7 days for less than $200.

  • What is the cheapest airline to fly from Ontario to Chicago O'Hare Intl Airport round-trip?

    Our cheapest airline available from Ontario to Chicago O'Hare Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $150 on this airline. Frontier is currently priced 61% below the average price you’ll pay for this route.

  • What does ONT to ORD mean?

    ONT stands for Ontario Airport, while ORD stands for Chicago O'Hare Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Ontario to O'Hare Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to O'Hare Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to O'Hare Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to O'Hare Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to O'Hare Intl.

  • Can I find deals for business class flights from Ontario to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Ontario to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to O'Hare Intl that allow pets onboard?

    Many airlines flying from Ontario to O'Hare Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to O'Hare Intl?

    Yes, you can often find last-minute deals on Ontario to O'Hare Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Chicago O'Hare Intl Airport flight deals updated?

    The Ontario to Chicago O'Hare Intl Airport flight deals you see on this page were last updated on 5/22.

  • What are the most popular airlines that fly from Ontario to Chicago O'Hare Intl Airport?

    When booking a flight from Ontario to Chicago O'Hare Intl Airport, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

  • When is the best time to book a flight from Ontario to Chicago O'Hare Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Chicago O'Hare Intl Airport (average of $244). Flying from Ontario to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $330). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.

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Long Beach to Midway flights
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Las Vegas to Rockford flights
Medford to Midway flights
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San Francisco to Rockford flights
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Top 5 airlines flying from Ontario to O'Hare Intl

Discover the top 5 airlines that operate flights from Ontario to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$105Average$198FlexibilityNo cancel feeOn-time65%
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FrontierCheapest$148Average$217FlexibilityNo cancel feeOn-time62%
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DeltaCheapest$276Average$364FlexibilityNo cancel feeOn-timeN/A
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American AirlinesCheapest$291Average$423FlexibilityNo cancel feeOn-time71%
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United AirlinesCheapest$299Average$471FlexibilityNo cancel feeOn-time69%
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Search flights from Ontario to O'Hare Intl by cabin class

Find flights from Ontario to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Ontario to O'Hare Intl

Find hourly flight availability from Ontario to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 22, 2024.
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0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
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Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to O'Hare Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to O'Hare Intl?

Cheapflights helps you find that perfect flight to O'Hare Intl from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to O'Hare Intl with no change fees?

Yes, we can. To see specific flights from Ontario to O'Hare Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to O'Hare Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to O'Hare Intl from Ontario today and book when prices fit your budget.

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