Cheap flights from Ontario (ONT) to O'Hare Intl (ORD) from $62
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 6/24. 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
Jun 2 — Jun 91
From?
To?
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
The best prices from Ontario to Chicago O'Hare Intl are usually found in April or May, 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 28, 2024.
Popular in | August |
|---|---|
Cheapest in | April |
Round-trip from | $222 |
One-way from | $100 |
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 28% 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 71% by booking at least 60 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 $313 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 17% on the flight price compared to flying in the morning, which is usually more expensive.
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 2,696,634 searches. Data last updated May 28, 2024.
Peruse some of the lowest-priced Delta flights we've found from Ontario to Chicago. It's recommended that users confirm their flight details before booking.
Tue 6/117:05 amONT - ORD
2 stops11h 53mDelta
Tue 6/186:55 amORD - ONT
1 stop8h 31mDelta
Deal found 5/27$241
Mon 6/32:13 pmONT - ORD
1 stop7h 53mDelta
Tue 6/117:45 amORD - ONT
1 stop6h 32mDelta
Deal found 5/26$279
Thu 7/115:00 pmONT - ORD
2 stops14h 11mDelta
Mon 7/157:35 amORD - ONT
1 stop6h 40mDelta
Deal found 5/28$284
Mon 7/152:04 pmONT - ORD
1 stop7h 52mDelta
Fri 7/267:35 amORD - ONT
1 stop6h 40mDelta
Deal found 5/27$287
Wed 6/56:42 pmONT - ORD
2 stops11h 57mDelta
Sat 8/101:31 pmORD - ONT
2 stops12h 28mDelta
Deal found 5/27$289
Thu 8/15:00 pmONT - ORD
2 stops12h 30mDelta
Mon 8/55:15 pmORD - ONT
2 stops8h 44mDelta
Deal found 5/28$297
Thu 7/41:25 pmONT - ORD
1 stop6h 19mDelta
Wed 7/109:39 amORD - ONT
2 stops16h 20mDelta
Deal found 5/28$318
Sun 6/210:00 pmONT - ORD
1 stop8h 19mDelta
Sat 6/84:00 pmORD - ONT
2 stops9h 42mDelta
Deal found 5/28$327
Fri 6/76:30 pmONT - ORD
2 stops12h 51mDelta
Sat 6/84:00 pmORD - ONT
2 stops9h 42mDelta
Deal found 5/28$332
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 2,696,634 searches. Data last updated May 28, 2024.
Some of the lowest-priced Frontier 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.
Fri 9/612:49 amONT - ORD
1 stop21h 22mFrontier
Sat 9/217:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/28$136
Sat 9/148:35 pmONT - ORD
1 stop6h 12mFrontier
Sat 9/217:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/28$137
Tue 8/2012:49 amONT - ORD
1 stop22h 14mFrontier
Tue 8/277:30 pmORD - ONT
1 stop24h 39mFrontier
Deal found 5/28$139
Fri 6/712:48 amONT - ORD
1 stop18h 18mFrontier
Thu 6/138:23 pmORD - ONT
1 stop23h 05mFrontier
Deal found 5/28$140
Fri 8/1612:49 amONT - ORD
1 stop21h 22mFrontier
Sat 8/247:30 pmORD - ONT
1 stop15h 36mFrontier
Deal found 5/28$146
Fri 8/1612:49 amONT - ORD
1 stop21h 22mFrontier
Tue 8/207:30 pmORD - ONT
1 stop24h 39mFrontier
Deal found 5/28$150
Tue 8/208:35 pmONT - ORD
1 stop6h 12mFrontier
Tue 8/277:15 pmORD - ONT
1 stop12h 52mFrontier
Deal found 5/27$154
Sat 8/315:30 pmONT - ORD
1 stop9h 17mFrontier
Wed 9/46:48 pmORD - ONT
1 stop6h 51mFrontier
Deal found 5/27$156
Tue 8/1312:49 amONT - ORD
1 stop22h 14mFrontier
Sat 8/177:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/28$157
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 2,696,634 searches. Prices were last updated on May 28, 2024.
Check out some of the best flight deals from Ontario to Chicago in 2024. Check back soon for alternative fares.
Mon 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
Sat 6/1510:11 pmORD - ONT
1 stop27h 48mFrontier
Deal found 5/28$177
Tue 6/1112:59 amONT - ORD
1 stop17h 49mFrontier
Sat 6/1510:11 pmORD - ONT
1 stop27h 48mFrontier
Deal found 5/28$178
Tue 6/1112:59 amONT - ORD
1 stop17h 49mFrontier
Sat 6/1510:11 pmORD - ONT
1 stop27h 48mFrontier
Deal found 5/27$180
Mon 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
Tue 7/308:26 pmORD - ONT
1 stop18h 36mFrontier
Deal found 5/27$185
Tue 6/1112:59 amONT - ORD
1 stop17h 49mFrontier
Tue 6/258:23 pmORD - ONT
1 stop18h 52mFrontier
Deal found 5/27$187
Mon 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
Tue 6/188:23 pmORD - ONT
1 stop18h 52mFrontier
Deal found 5/28$188
Fri 6/1412:44 amONT - ORD
1 stop18h 22mFrontier
Tue 6/186:00 amORD - ONT
1 stop27h 02mFrontier
Deal found 5/27$191
Sat 6/157:15 pmONT - ORD
1 stop8h 19mFrontier
Tue 6/188:23 pmORD - ONT
1 stop20h 57mFrontier
Deal found 5/27$194
Mon 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
Sun 6/168:23 pmORD - ONT
1 stop14h 41mFrontier
Deal found 5/27$197
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 2,696,634 searches. Data last updated May 28, 2024.
Check out some of the best flight deals from Ontario to Chicago in 2024. Check back soon for alternative fares.
Tue 8/208:35 pmONT - ORD
1 stop6h 12mFrontier
Tue 8/277:15 pmORD - ONT
1 stop12h 52mFrontier
Deal found 5/27$154
Sat 8/315:30 pmONT - ORD
1 stop9h 17mFrontier
Wed 9/46:48 pmORD - ONT
1 stop6h 51mFrontier
Deal found 5/27$156
Tue 8/1312:49 amONT - ORD
1 stop22h 14mFrontier
Sat 8/177:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/28$157
Wed 9/412:30 pmONT - ORD
1 stop14h 17mFrontier
Tue 9/107:30 pmORD - ONT
1 stop15h 36mFrontier
Deal found 5/27$159
Tue 8/1312:49 amONT - ORD
1 stop22h 14mFrontier
Sat 8/177:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/28$160
Wed 9/45:30 pmONT - ORD
1 stop9h 17mFrontier
Tue 9/108:00 amORD - ONT
1 stop6h 32mFrontier
Deal found 5/27$162
Fri 8/3012:49 amONT - ORD
1 stop21h 22mFrontier
Tue 9/38:00 amORD - ONT
1 stop17h 39mFrontier
Deal found 5/27$166
Fri 9/1312:49 amONT - ORD
1 stop21h 22mFrontier
Wed 9/186:48 pmORD - ONT
1 stop6h 51mFrontier
Deal found 5/27$170
Tue 8/2012:00 pmONT - ORD
1 stop14h 47mFrontier
Tue 9/178:00 amORD - ONT
1 stop6h 32mFrontier
Deal found 5/26$172
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 2,696,634 searches. Data last updated May 28, 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.
Fri 6/711:59 pmONT - ORD
1 stop7h 56mAmerican Airlines
Sat 6/86:39 pmORD - ONT
1 stop7h 20mAmerican Airlines
Deal found 5/28$198
Mon 6/312:59 amONT - ORD
1 stop17h 51mFrontier
Sat 6/1510:11 pmORD - ONT
1 stop27h 48mFrontier
Deal found 5/28$202
Wed 6/52:39 pmONT - ORD
1 stop12h 44mFrontier
Tue 6/118:23 pmORD - ONT
1 stop14h 41mFrontier
Deal found 5/27$203
Thu 6/67:33 pmONT - ORD
1 stop8h 09mFrontier
Tue 6/118:23 pmORD - ONT
1 stop23h 25mFrontier
Deal found 5/27$204
Thu 6/67:33 pmONT - ORD
1 stop8h 09mFrontier
Wed 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/27$205
Wed 6/512:49 amONT - ORD
1 stop21h 51mFrontier
Tue 6/118:23 pmORD - ONT
1 stop23h 25mFrontier
Deal found 5/28$206
Fri 6/78:50 pmONT - ORD
1 stop6h 35mFrontier
Wed 6/129:53 pmORD - ONT
1 stop28h 06mFrontier
Deal found 5/27$208
Fri 6/75:41 pmONT - ORD
1 stop9h 44mFrontier
Tue 6/118:23 pmORD - ONT
1 stop14h 41mFrontier
Deal found 5/27$209
Tue 6/48:29 pmONT - ORD
1 stop6h 31mFrontier
Tue 7/26:00 amORD - ONT
1 stop19h 59mFrontier
Deal found 5/27$217
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 2,696,634 searches. Data last updated May 28, 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.
Mon 6/2412:49 amONT - ORD
1 stop21h 51mFrontier
Deal found 5/28$62
Tue 6/48:29 pmONT - ORD
1 stop6h 31mFrontier
Deal found 5/28$70
Tue 6/48:29 pmONT - ORD
1 stop6h 31mFrontier
Deal found 5/28$74
Wed 7/178:17 amONT - ORD
1 stop13h 21mFrontier
Deal found 5/28$76
Sat 8/318:35 pmONT - ORD
1 stop6h 12mFrontier
Deal found 5/27$78
Tue 8/208:35 pmONT - ORD
1 stop6h 12mFrontier
Deal found 5/27$79
Fri 6/712:48 amONT - ORD
1 stop18h 18mFrontier
Deal found 5/28$80
Fri 8/3012:49 amONT - ORD
1 stop21h 22mFrontier
Deal found 5/27$88
Fri 8/3012:49 amONT - ORD
1 stop21h 22mFrontier
Deal found 5/27$89
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 2,696,634 searches. Data last updated May 28, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$136 - $260
Route
Depart
Return
Price
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Fri 9/6
1 stop21h 22m
Chicago O'Hare Intl
Sat 9/21
1 stop13h 38m
$136
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Sat 9/14
1 stop6h 12m
Chicago O'Hare Intl
Sat 9/21
1 stop13h 38m
$137
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Tue 8/20
1 stop22h 14m
Chicago O'Hare Intl
Tue 8/27
1 stop24h 39m
$139
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Fri 6/7
1 stop18h 18m
Chicago O'Hare Intl
Thu 6/13
1 stop23h 05m
$140
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Fri 8/16
1 stop21h 22m
Chicago O'Hare Intl
Sat 8/24
1 stop15h 36m
$146
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Fri 8/16
1 stop21h 22m
Chicago O'Hare Intl
Tue 8/20
1 stop24h 39m
$150
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Tue 8/20
1 stop6h 12m
Chicago O'Hare Intl
Tue 8/27
1 stop12h 52m
$154
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Tue 6/11
2 stops11h 53m
Chicago O'Hare Intl
Tue 6/18
1 stop8h 31m
$241
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
Fri 6/14
1 stop9h 03m
Chicago O'Hare Intl
Sun 6/16
1 stop5h 42m
$260
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 24, 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.
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 26, 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.
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 28, 2024.
Read through reviews of airlines operating flights from Ontario to Chicago, such as Delta, Frontier and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
9,194 reviews
Food
7.3
Crew
8.6
Comfort
7.9
Entertainment
7.3
Overall
8.1
Boarding
8.2
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,194 reviews
9,194 reviews
Food
7.3
Crew
8.6
Comfort
7.9
Entertainment
7.3
Overall
8.1
Boarding
8.2
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,476 reviews
9,194 reviews
Food
7.3
Crew
8.6
Comfort
7.9
Entertainment
7.3
Overall
8.1
Boarding
8.2
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,799 reviews
9,194 reviews
Food
7.3
Crew
8.6
Comfort
7.9
Entertainment
7.3
Overall
8.1
Boarding
8.2
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,316 reviews
9,194 reviews
Food
7.3
Crew
8.6
Comfort
7.9
Entertainment
7.3
Overall
8.1
Boarding
8.2
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
1,480 reviews
9,194 reviews
Food
7.3
Crew
8.6
Comfort
7.9
Entertainment
7.3
Overall
8.1
Boarding
8.2
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Ontario to O'Hare IntlSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
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 2,696,634 searches. Data last updated May 28, 2024.
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.
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 28, 2024.
| 0%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 0%of flight departures | Morning6 am to noon |
| 100%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
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.