$137+ Cheap flights from Ontario to O'Hare Intl (ORD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to O'Hare Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to O'Hare Intl
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Cheapest flights from Ontario to O'Hare IntlExplore the most affordable flight options available from Ontario to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from Ontario to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This VIAZA deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/138:05 am -
Nonstop2h 03m
Mon 12/148:50 pm -
Nonstop1h 42m
Deal found 10/9![Air Canada logo]()
$221
This VIAZA deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:30 pm -
Nonstop2h 13m
Sun 11/110:15 am -
Nonstop1h 37m
Deal found 10/10![Air Canada logo]()
$222
This VIAZA deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:20 am -
Nonstop2h 03m
Sun 11/298:45 am -
Nonstop1h 42m
Deal found 10/12![Air Canada logo]()
$223
This Kissandfly.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:55 pm -
Nonstop2h 10m
Sun 11/15:55 am -
1 stop7h 30m
Deal found 10/10![Lufthansa logo]()
$230
This VIAZA deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:15 pm -
Nonstop2h 10m
Fri 10/301:55 pm -
Nonstop1h 47m
Deal found 10/9![Air Canada logo]()
$230
This Kissandfly.com deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:45 pm -
1 stop9h 44m
Sun 12/67:02 am -
Nonstop1h 45m
Deal found 10/13![Lufthansa logo]()
$231
This Kissandfly.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:44 pm -
1 stop12h 45m
Sun 11/81:57 pm -
Nonstop1h 50m
Deal found 10/9![Lufthansa logo]()
$232
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:44 pm -
1 stop14h 53m
Sat 12/56:17 pm -
Nonstop1h 58m
Deal found 10/9![United Airlines logo]()
$245
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:26 pm -
Nonstop2h 22m
Sat 11/77:00 am -
1 stop9h 49m
Deal found 10/10![United Airlines logo]()
$251
This VIAZA deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2112:10 pm -
1 stop4h 28m
Sun 11/221:55 pm -
1 stop4h 57m
Deal found 10/10![Air Canada logo]()
$251
This deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:40 pm -
Nonstop2h 15m
Sun 12/67:20 am -
Nonstop1h 47m
Deal found 10/12![Air Canada logo]()
$253
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:45 am -
1 stop5h 17m
Mon 11/301:55 pm -
Nonstop1h 47m
Deal found 10/8![Air Canada logo]()
$261
Best flights from Ontario to O'Hare IntlDiscover carefully curated flight deals from Ontario to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Ontario to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:45 am -
1 stop5h 22m
Sat 11/71:55 pm -
1 stop5h 01m
Deal found 10/8![Air Canada logo]()
$283
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1112:15 pm -
1 stop5h 02m
Sun 12/135:05 pm -
1 stop5h 02m
Deal found 10/8![Delta logo]()
$290
This Kissandfly.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:30 am -
Nonstop2h 05m
Sun 12/66:20 pm -
Nonstop1h 45m
Deal found 10/12![Porter Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:55 pm -
Nonstop2h 10m
Tue 11/241:57 pm -
Nonstop1h 50m
Deal found 10/12![United Airlines logo]()
$325
This Air Transat deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:35 pm -
Nonstop2h 05m
Sun 11/296:20 pm -
Nonstop1h 45m
Deal found 10/11![Air Transat logo]()
$335
This KAYAK deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:20 pm -
1 stop7h 10m
Thu 11/1210:32 am -
1 stop7h 25m
Deal found 10/9![Multiple Airlines logo]()
$398
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:00 am -
1 stop5h 39m
Sun 11/297:05 am -
1 stop5h 25m
Deal found 10/8![Delta logo]()
$290
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:05 pm -
Nonstop2h 15m
Fri 12/117:20 am -
Nonstop1h 47m
Deal found 10/8![Air Canada logo]()
$294
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:10 pm -
1 stop5h 22m
Sun 11/18:29 am -
1 stop7h 50m
Deal found 10/8![Delta logo]()
$290
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:35 am -
Nonstop2h 09m
Fri 11/2711:05 am -
Nonstop1h 58m
Deal found 10/12![United Airlines logo]()
$325
This FlightHub deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:35 am -
Nonstop2h 05m
Tue 11/312:15 pm -
Nonstop1h 45m
Deal found 10/11![Porter Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:26 pm -
1 stop7h 04m
Wed 11/118:29 am -
1 stop7h 51m
Deal found 10/9![Delta logo]()
$290
This Air Canada deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:45 am -
1 stop5h 17m
Fri 11/271:55 pm -
1 stop5h 01m
Deal found 10/12![Air Canada logo]()
$323
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/183:35 pm -
Nonstop2h 09m
Thu 11/263:47 pm -
Nonstop1h 58m
Deal found 10/12![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:45 am -
Nonstop2h 09m
Mon 11/910:32 am -
1 stop7h 29m
Deal found 10/12![United Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:20 pm -
1 stop5h 10m
Thu 11/2611:18 am -
1 stop5h 02m
Deal found 10/12![Delta logo]()
$300
This United deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:05 pm -
Nonstop2h 15m
Sun 11/227:05 am -
1 stop6h 16m
Deal found 10/12![Multiple Airlines logo]()
$409
This Cheapflightsfares deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:30 am -
Nonstop2h 05m
Tue 12/2912:15 pm -
Nonstop1h 45m
Deal found 10/9![Porter Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:00 am -
1 stop8h 56m
Wed 12/167:05 am -
1 stop5h 30m
Deal found 10/9![Delta logo]()
$311
This United deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:05 pm -
Nonstop2h 15m
Sun 11/810:57 am -
1 stop6h 22m
Deal found 10/12![Multiple Airlines logo]()
$416
This Justfly.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2812:40 pm -
1 stop6h 00m
Tue 12/112:15 pm -
1 stop4h 58m
Deal found 10/12![Porter Airlines logo]()
$397
This Air Canada deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:45 am -
1 stop5h 07m
Tue 11/31:55 pm -
1 stop5h 01m
Deal found 10/11![Air Canada logo]()
$408
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:26 pm -
1 stop7h 04m
Sat 11/142:44 pm -
1 stop7h 13m
Deal found 10/9![Delta logo]()
$318
This Mytrip deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:10 pm -
3 stops25h 41m
Sun 11/17:55 am -
2 stops13h 15m
Deal found 10/10![Multiple Airlines logo]()
$459
This Mytrip deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:20 am -
1 stop8h 36m
Wed 12/99:16 am -
2 stops27h 54m
Deal found 10/12![Multiple Airlines logo]()
$522
This Air Canada deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:35 am -
1 stop6h 13m
Mon 11/3012:50 pm -
1 stop4h 50m
Deal found 10/9![Air Canada logo]()
$587
This Kissandfly.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:15 pm -
1 stop6h 25m
Tue 11/312:15 pm -
1 stop4h 57m
Deal found 10/11![Porter Airlines logo]()
$601
This Mytrip deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:20 am -
2 stops26h 00m
Mon 12/710:37 pm -
3 stops22h 33m
Deal found 10/8![Multiple Airlines logo]()
$570
This Air Canada deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:20 am -
1 stop5h 18m
Sun 11/810:15 am -
1 stop4h 50m
Deal found 10/9![Air Canada logo]()
$600
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:25 pm -
1 stop19h 10m
Sat 11/76:20 pm -
1 stop13h 51m
Deal found 10/11![Porter Airlines logo]()
$604
Last-minute flights from Ontario to O'Hare IntlDiscover last-minute flight deals from Ontario to O'Hare Intl. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to O'Hare Intl. Data last updated October 13, 2026 and is based on user searches.
This VIAZA deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:15 pm -
Nonstop2h 10m
Fri 10/301:55 pm -
Nonstop1h 47m
Deal found 10/9![Air Canada logo]()
$230
This VIAZA deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:30 pm -
Nonstop2h 13m
Sun 11/110:15 am -
Nonstop1h 37m
Deal found 10/10![Air Canada logo]()
$222
This Kissandfly.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:55 pm -
Nonstop2h 10m
Sun 11/15:55 am -
1 stop7h 30m
Deal found 10/10![Lufthansa logo]()
$230
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:30 pm -
Nonstop2h 13m
Sun 11/158:45 am -
Nonstop1h 42m
Deal found 10/8![Air Canada logo]()
$261
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:26 pm -
Nonstop2h 22m
Sat 11/77:00 am -
1 stop9h 49m
Deal found 10/10![United Airlines logo]()
$251
This Kissandfly.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:44 pm -
1 stop12h 45m
Sun 11/81:57 pm -
Nonstop1h 50m
Deal found 10/9![Lufthansa logo]()
$232
This VIAZA deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2112:10 pm -
1 stop4h 28m
Sun 11/221:55 pm -
1 stop4h 57m
Deal found 10/10![Air Canada logo]()
$251
This VIAZA deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:20 am -
Nonstop2h 03m
Sun 11/298:45 am -
Nonstop1h 42m
Deal found 10/12![Air Canada logo]()
$223
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:45 am -
1 stop5h 17m
Mon 11/301:55 pm -
Nonstop1h 47m
Deal found 10/8![Air Canada logo]()
$261
This VIAZA deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:10 am -
2 stops8h 52m
Sun 11/298:45 am -
Nonstop1h 42m
Deal found 10/10![Air Canada logo]()
$265
This Air Canada deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:45 am -
1 stop5h 22m
Sun 11/297:05 am -
1 stop6h 16m
Deal found 10/9![Air Canada logo]()
$269
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:44 pm -
1 stop5h 17m
Sat 11/287:03 am -
Nonstop1h 44m
Deal found 10/12![United Airlines logo]()
$245
One-way flights from Ontario to O'Hare IntlSearch for one-way flight options from Ontario to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Ontario to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This VIAZA deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:55 pm -
Nonstop2h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Air Canada logo]()
$137
This VIAZA deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:15 pm -
Nonstop2h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Air Canada logo]()
$146
This SmartFares deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:20 am -
Nonstop2h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Air Canada logo]()
$156
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:30 pm -
Nonstop2h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Air Canada logo]()
$157
This Air Canada deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:45 am -
1 stop5h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Air Canada logo]()
$157
This Air Canada deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:30 pm -
Nonstop2h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Air Canada logo]()
$162
This Air Canada deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:45 am -
1 stop5h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Air Canada logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1210:30 am -
Nonstop2h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Porter Airlines logo]()
$163
This SmartFares deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:05 pm -
Nonstop2h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Air Canada logo]()
$164
This Cheapflightsfares deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:35 pm -
Nonstop2h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Porter Airlines logo]()
$165
This Cheapflightsfares deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:35 am -
Nonstop2h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Porter Airlines logo]()
$166
This Gotogate deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:20 am -
Nonstop2h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Air Canada logo]()
$168
Find flight deals from Ontario to O'Hare Intl
Keep the following information in mind while searching for Ontario to O'Hare Intl flight deals. Data was last updated October 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (VIAZA) |
One-way from | $137 (VIAZA) |
Popular in | October |
Cheapest in | February |
Average price | $305 |
Good round-trip deal | $264 or less |
Good one-way deal | $178 or less |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated October 13, 2026.
Use the filters below to find and compare flights from Ontario to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
TorontoChicago
YTZ Toronto Island - ORD Chicago O'Hare Intl
YTZORD
Toronto Island
Thu 11/26
8:20 am-3:02 pm
2 stops7h 42m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Sun 12/6
6:00 am-1:56 pm
1 stop8h 56m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$172
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Fri 12/11
12:15 pm-6:26 pm
1 stop7h 11m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$172
Quickest round-trip
TorontoChicago
YTZ Toronto Island - ORD Chicago O'Hare Intl
YTZORD
Toronto Island
Mon 11/16
10:30 am-11:35 am
Nonstop2h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$173
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Sat 11/7
12:10 pm-4:26 pm
1 stop5h 16m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$174
TorontoChicago
YTZ Toronto Island - ORD Chicago O'Hare Intl
YTZORD
Toronto Island
Wed 11/11
10:30 am-11:35 am
Nonstop2h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$175
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Sun 12/13
5:55 pm-7:05 pm
Nonstop2h 10m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Wed 12/9
5:55 pm-7:05 pm
Nonstop2h 10m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Sat 12/12
8:35 am-9:44 am
Nonstop2h 09m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Fri 11/20
9:45 am-1:59 pm
1 stop5h 14m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
Showing 1-10 of 60 resultsSorted by cheapest first
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.
YYZ-ORD
YTZ-ORD
YOW-ORD
YHM-ORD
YQG-ORD
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.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Chicago O'Hare Intl Airport
CAON-ORD
YYZ-ORD
YTZ-ORD
YOW-ORD
YHM-ORD
What is the cheapest month to book a flight from Region of Ontario to Chicago O'Hare Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Chicago O'Hare Intl Airport (average of $285). Flying from Region of Ontario to Chicago O'Hare Intl Airport in October is currently the most expensive (average of $366). 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.
What is the cheapest time of day to fly from ON to ORD?
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 October 13, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 36% on flights from Region of Ontario to Chicago O'Hare Intl Airport by exploring options for tickets in the evening.
Weekly flight availability from Region of Ontario to Chicago O'Hare Intl Airport
Explore weekly flight availability from Ontario to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 13, 2026.
The most flights from CAON to ORD are scheduled on a Monday (71 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).
How much does it cost to fly round-trip from Region of Ontario to Chicago O'Hare Intl Airport?
Airfare is below average for this route at the moment.
Region of Ontario to Chicago O'Hare Intl Airport flights typically cost between $270 and $425 in December.The cheapest round-trip price found within the last 5 days was $221 on Air Canada (Dec 13-Dec 14).
How far ahead should I book a flight from Region of Ontario to Chicago O'Hare Intl Airport?
To ensure you get the cheapest price possible for a flight from Region of Ontario to Chicago O'Hare Intl Airport, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Region of 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 October 10, 2026.
Travelers seeking maximum savings on their Region of Ontario to Chicago O'Hare Intl Airport flight should consider departing on Sunday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this 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.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Naperville
Lake Geneva
Des Plaines
Glenview
Schaumburg
Oak Brook
Oakbrook Terrace
Delavan
Aurora
Libertyville
Rockford
Hoffman Estates
Beloit
Orland Park
South Holland
Elgin
Racine
Janesville
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Alternative routes for Ontario to O'Hare Intl
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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.
Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
Ontario and O'Hare Intl flights
Browse other Ontario and O'Hare Intl flight options. Last updated on October 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to O'Hare Intl
Discover the top 4 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 7,457,451 searches. Data last updated October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$494 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$190 | Average$507 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$193 | Average$320 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$235 | Average$403 | FlexibilityNo cancel fee | On-time52% |