$132+ Cheap flights from Ontario to O'Hare Intl (ORD)
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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
Sep 10 — Sep 171
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
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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 August 11, 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 August 11, 2026.
This Ticket deal was found by Cheapflights users on 8/7. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:50 pm -
Nonstop1h 58m
Sun 9/138:40 pm -
Nonstop1h 46m
Deal found 8/7![Air Canada logo]()
$199
This Air Canada deal was found by Cheapflights users on 8/11. 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 9/86:50 pm -
Nonstop1h 58m
Tue 9/153:40 pm -
1 stop5h 13m
Deal found 8/11![Air Canada logo]()
$200
This Travelis deal was found by Cheapflights users on 8/7. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:15 pm -
Nonstop2h 06m
Sun 9/137:25 am -
Nonstop1h 42m
Deal found 8/7![Air Canada logo]()
$200
This Air Canada deal was found by Cheapflights users on 8/11. 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.
Thu 9/2412:25 pm -
Nonstop1h 58m
Sun 9/273:40 pm -
1 stop5h 13m
Deal found 8/11![Air Canada logo]()
$201
This Air Canada deal was found by Cheapflights users on 8/9. 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.
Sat 9/124:00 pm -
1 stop5h 12m
Tue 9/153:40 pm -
1 stop5h 13m
Deal found 8/9![Air Canada logo]()
$202
This deal was found by Cheapflights users on 8/7. 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.
Sat 9/127:35 pm -
Nonstop2h 06m
Tue 9/157:25 am -
Nonstop1h 42m
Deal found 8/7![Air Canada logo]()
$202
This Trip.com deal was found by Cheapflights users on 8/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:35 pm -
Nonstop2h 06m
Tue 9/152:00 pm -
Nonstop1h 42m
Deal found 8/10![Air Canada logo]()
$203
This Trip.com deal was found by Cheapflights users on 8/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:45 am -
1 stop5h 07m
Mon 9/217:25 am -
Nonstop1h 42m
Deal found 8/9![Air Canada logo]()
$204
This Air Canada deal was found by Cheapflights users on 8/7. 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 8/2910:45 am -
1 stop5h 10m
Tue 9/12:00 pm -
Nonstop1h 42m
Deal found 8/7![Air Canada logo]()
$205
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/47:45 pm -
Nonstop2h 06m
Tue 9/82:00 pm -
Nonstop1h 42m
Deal found 8/6![Air Canada logo]()
$206
This Air Canada deal was found by Cheapflights users on 8/9. 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.
Fri 9/1112:15 pm -
Nonstop2h 06m
Mon 9/142:00 pm -
Nonstop1h 42m
Deal found 8/9![Air Canada logo]()
$207
This Fareboom deal was found by Cheapflights users on 8/6. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:40 am -
Nonstop2h 05m
Thu 9/172:51 pm -
Nonstop1h 53m
Deal found 8/6![Porter Airlines logo]()
$208
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 August 11, 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 August 11, 2026.
This United Airlines deal was found by Cheapflights users on 8/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:00 am -
Nonstop2h 00m
Tue 9/89:18 pm -
Nonstop1h 41m
Deal found 8/8![United Airlines logo]()
$211
This United deal was found by Cheapflights users on 8/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:00 am -
Nonstop2h 00m
Sun 9/138:40 pm -
Nonstop1h 46m
Deal found 8/9![Multiple Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 8/8. 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.
Wed 8/2612:09 pm -
1 stop5h 08m
Tue 9/81:55 pm -
1 stop8h 04m
Deal found 8/8![Delta logo]()
$270
This Air Canada deal was found by Cheapflights users on 8/6. 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 10/226:30 pm -
Nonstop2h 42m
Sat 10/243:40 pm -
Nonstop2h 21m
Deal found 8/6![Air Canada logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:10 am -
1 stop11h 30m
Sun 9/275:30 pm -
1 stop10h 50m
Deal found 8/10![WestJet logo]()
$376
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Mon 9/149:00 pm -
Nonstop2h 05m
Sat 9/199:18 pm -
Nonstop1h 41m
Deal found 8/10![United Airlines logo]()
$219
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/108:50 am -
Nonstop2h 03m
Sun 9/135:53 pm -
Nonstop1h 51m
Deal found 8/7![United Airlines logo]()
$239
This Porter Airlines deal was found by Cheapflights users on 8/9. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:40 am -
1 stop6h 40m
Sun 10/188:06 am -
1 stop5h 49m
Deal found 8/9![Porter Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 8/8. 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.
Tue 8/256:00 am -
1 stop8h 08m
Sat 8/295:18 pm -
1 stop5h 12m
Deal found 8/8![Delta logo]()
$284
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Sat 9/59:44 am -
1 stop5h 43m
Tue 9/86:30 am -
1 stop6h 49m
Deal found 8/10![United Airlines logo]()
$245
This United deal was found by Cheapflights users on 8/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:15 pm -
Nonstop2h 06m
Sat 9/510:40 am -
1 stop6h 40m
Deal found 8/9![Multiple Airlines logo]()
$306
This Delta deal was found by Cheapflights users on 8/9. 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.
Tue 8/2512:47 pm -
1 stop8h 43m
Tue 9/16:00 am -
1 stop6h 39m
Deal found 8/9![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Mon 9/147:00 am -
Nonstop2h 00m
Wed 9/165:53 pm -
Nonstop1h 51m
Deal found 8/10![United Airlines logo]()
$247
This United deal was found by Cheapflights users on 8/8. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:05 pm -
1 stop5h 41m
Sun 9/61:55 pm -
1 stop6h 18m
Deal found 8/8![Multiple Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 8/7. 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 11/127:00 am -
1 stop6h 20m
Sat 11/146:45 am -
1 stop5h 53m
Deal found 8/7![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 8/7. 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 8/286:51 pm -
1 stop6h 06m
Sat 9/51:50 pm -
1 stop9h 02m
Deal found 8/7![Delta logo]()
$301
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Sat 9/56:10 am -
Nonstop2h 41m
Sat 10/177:11 am -
Nonstop2h 29m
Deal found 8/10![United Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 8/9. 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 9/26:00 am -
1 stop5h 42m
Fri 9/41:59 pm -
1 stop8h 31m
Deal found 8/9![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/89:45 am -
Nonstop2h 36m
Sat 10/177:11 am -
Nonstop2h 29m
Deal found 8/10![United Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:40 am -
1 stop4h 19m
Tue 11/35:29 pm -
1 stop4h 27m
Deal found 8/10![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/1012:15 pm -
Nonstop2h 06m
Sun 9/137:25 am -
Nonstop1h 42m
Deal found 8/6![United Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:44 pm -
1 stop7h 18m
Sun 11/2210:32 am -
1 stop5h 57m
Deal found 8/10![Delta logo]()
$310
This Porter Airlines deal was found by Cheapflights users on 8/7. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:00 am -
1 stop5h 20m
Sat 9/268:03 am -
1 stop15h 22m
Deal found 8/7![Porter Airlines logo]()
$554
This Air Canada deal was found by Cheapflights users on 8/6. 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 8/283:30 pm -
1 stop5h 22m
Wed 9/309:55 am -
1 stop3h 55m
Deal found 8/6![Air Canada logo]()
$556
This FlightHub deal was found by Cheapflights users on 8/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:50 am -
2 stops10h 42m
Fri 10/239:51 am -
2 stops13h 29m
Deal found 8/8![WestJet logo]()
$590
This United Airlines deal was found by Cheapflights users on 8/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:45 pm -
Nonstop2h 06m
Sun 9/137:25 am -
Nonstop1h 42m
Deal found 8/8![United Airlines logo]()
$305
This Porter Airlines deal was found by Cheapflights users on 8/9. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:00 am -
1 stop5h 20m
Sat 9/198:30 pm -
1 stop17h 25m
Deal found 8/9![Porter Airlines logo]()
$556
This Delta deal was found by Cheapflights users on 8/8. 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.
Sat 8/296:10 am -
1 stop5h 32m
Tue 9/18:48 am -
1 stop5h 32m
Deal found 8/8![Delta logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:15 am -
1 stop29h 35m
Thu 9/105:30 pm -
2 stops20h 35m
Deal found 8/8![Multiple Airlines logo]()
$525
This Air Canada deal was found by Cheapflights users on 8/7. 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 9/196:25 am -
Nonstop2h 19m
Sat 9/192:00 pm -
1 stop4h 52m
Deal found 8/7![Air Canada logo]()
$584
Last-minute flights from Ontario to O'Hare IntlDiscover last-minute flight deals from Ontario to O'Hare Intl. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to O'Hare Intl. Data last updated August 11, 2026 and is based on user searches.
This CheapTicketsDeal deal was found by Cheapflights users on 8/8. 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 CheapTicketsDeal is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:05 pm -
Nonstop1h 57m
Sun 8/238:45 am -
1 stop7h 20m
Deal found 8/8![Jazz logo]()
$242
This Air Canada deal was found by Cheapflights users on 8/7. 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 8/211:00 pm -
Nonstop1h 57m
Sat 9/128:40 pm -
Nonstop1h 46m
Deal found 8/7![Air Canada logo]()
$265
This Air Canada deal was found by Cheapflights users on 8/7. 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 8/2910:45 am -
1 stop5h 10m
Tue 9/12:00 pm -
Nonstop1h 42m
Deal found 8/7![Air Canada logo]()
$205
This Air Canada deal was found by Cheapflights users on 8/11. 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.
Wed 9/27:35 pm -
Nonstop2h 06m
Wed 9/92:00 pm -
Nonstop1h 42m
Deal found 8/11![Air Canada logo]()
$212
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Wed 9/27:35 pm -
Nonstop2h 06m
Wed 9/302:00 pm -
Nonstop1h 42m
Deal found 8/10![Air Canada logo]()
$213
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/47:45 pm -
Nonstop2h 06m
Tue 9/82:00 pm -
Nonstop1h 42m
Deal found 8/6![Air Canada logo]()
$206
This Trip.com deal was found by Cheapflights users on 8/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:15 pm -
Nonstop2h 06m
Wed 9/92:00 pm -
Nonstop1h 42m
Deal found 8/10![Air Canada logo]()
$203
This Air Canada deal was found by Cheapflights users on 8/8. 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.
Tue 9/812:15 pm -
Nonstop2h 06m
Mon 9/142:00 pm -
Nonstop1h 42m
Deal found 8/8![Air Canada logo]()
$208
This Travelis deal was found by Cheapflights users on 8/7. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:15 pm -
Nonstop2h 06m
Sun 9/137:25 am -
Nonstop1h 42m
Deal found 8/7![Air Canada logo]()
$200
This Air Canada deal was found by Cheapflights users on 8/9. 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.
Fri 9/1112:15 pm -
Nonstop2h 06m
Mon 9/147:25 am -
Nonstop1h 42m
Deal found 8/9![Air Canada logo]()
$207
This deal was found by Cheapflights users on 8/7. 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.
Sat 9/127:35 pm -
Nonstop2h 06m
Tue 9/157:25 am -
Nonstop1h 42m
Deal found 8/7![Air Canada logo]()
$202
This Air Canada deal was found by Cheapflights users on 8/7. 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 9/1910:45 am -
1 stop5h 07m
Mon 9/217:25 am -
Nonstop1h 42m
Deal found 8/7![Air Canada logo]()
$209
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 August 11, 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 August 11, 2026.
This Air Canada deal was found by Cheapflights users on 8/11. 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.
Thu 9/2410:45 am -
1 stop5h 07m
Deal found 8/11![Air Canada logo]()
$132
This Air Canada deal was found by Cheapflights users on 8/6. 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 9/14:00 pm -
Nonstop1h 57m
Deal found 8/6![Air Canada logo]()
$133
This Booking.com deal was found by Cheapflights users on 8/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:20 pm -
2 stops8h 52m
Deal found 8/9![Air Canada logo]()
$133
This Air Canada deal was found by Cheapflights users on 8/9. 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.
Sun 9/612:25 pm -
Nonstop1h 57m
Deal found 8/9![Air Canada logo]()
$134
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Mon 8/317:35 pm -
Nonstop2h 06m
Deal found 8/10![Air Canada logo]()
$134
This Booking.com deal was found by Cheapflights users on 8/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:15 pm -
Nonstop2h 06m
Deal found 8/9![Air Canada logo]()
$136
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Wed 9/92:00 pm -
Nonstop1h 55m
Deal found 8/10![Air Canada logo]()
$137
This Fareboom deal was found by Cheapflights users on 8/7. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:05 am -
Nonstop1h 55m
Deal found 8/7![Porter Airlines logo]()
$137
This Fareboom deal was found by Cheapflights users on 8/9. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:05 am -
Nonstop1h 55m
Deal found 8/9![Porter Airlines logo]()
$138
This Air Canada deal was found by Cheapflights users on 8/10. 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.
Sun 8/308:05 am -
Nonstop1h 55m
Deal found 8/10![Air Canada logo]()
$139
This Air Canada deal was found by Cheapflights users on 8/11. 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.
Sat 9/54:00 pm -
1 stop5h 05m
Deal found 8/11![Air Canada logo]()
$140
This Air Canada deal was found by Cheapflights users on 8/11. 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 9/154:00 pm -
1 stop5h 12m
Deal found 8/11![Air Canada logo]()
$141
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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $199 (Ticket) |
One-way from | $132 (Air Canada) |
Popular in | July |
Cheapest in | September |
Average price | $278 |
Good round-trip deal | $216 or less |
Good one-way deal | $169 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 2,558,603 searches. Data last updated August 11, 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
Quickest round-trip
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Thu 9/3
7:00 am-8:00 am
Nonstop2h 00m
Chicago O'Hare Intl
Tue 9/8
9:18 pm-11:59 pm
Nonstop1h 41m
$211
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Mon 9/14
9:00 pm-10:05 pm
Nonstop2h 05m
Chicago O'Hare Intl
Sat 9/19
9:18 pm-11:59 pm
Nonstop1h 41m
$219
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Thu 9/10
11:00 am-12:00 pm
Nonstop2h 00m
Chicago O'Hare Intl
Sun 9/13
8:40 pm-11:26 pm
Nonstop1h 46m
$239
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Thu 9/10
8:50 am-9:53 am
Nonstop2h 03m
Chicago O'Hare Intl
Sun 9/13
5:53 pm-8:44 pm
Nonstop1h 51m
$239
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Sat 9/5
9:44 am-2:27 pm
1 stop5h 43m
Chicago O'Hare Intl
Tue 9/8
6:30 am-2:19 pm
1 stop6h 49m
$245
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Mon 9/14
7:00 am-8:00 am
Nonstop2h 00m
Chicago O'Hare Intl
Wed 9/16
5:53 pm-8:44 pm
Nonstop1h 51m
$247
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Wed 8/26
12:09 pm-4:17 pm
1 stop5h 08m
Chicago O'Hare Intl
Tue 9/8
1:55 pm-10:59 pm
1 stop8h 04m
$270
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 10/22
6:30 pm-8:12 pm
Nonstop2h 42m
Chicago O'Hare Intl
Sat 10/24
3:40 pm-7:01 pm
Nonstop2h 21m
$282
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 8/25
6:00 am-1:08 pm
1 stop8h 08m
Chicago O'Hare Intl
Sat 8/29
5:18 pm-11:30 pm
1 stop5h 12m
$284
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 8/25
12:47 pm-8:30 pm
1 stop8h 43m
Chicago O'Hare Intl
Tue 9/1
6:00 am-1:39 pm
1 stop6h 39m
$285
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
YUL-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 December is currently the most expensive (average of $336). 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 August 11, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 45% 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 August 11, 2026.
The most flights from CAON to ORD are scheduled on a Monday (70 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 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 $256 and $409 in September.The cheapest round-trip price found within the last 5 days was $199 on Air Canada (Sep 10-Sep 13).
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 August 8, 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. Sunday afternoons 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
Schaumburg
Naperville
Lake Geneva
Oak Brook
Oakbrook Terrace
Delavan
South Holland
Libertyville
Gurnee
Orland Park
Hoffman Estates
Beloit
Rockford
Aurora
Racine
Great Lakes
Janesville
Joliet
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Alternative routes for Ontario to O'Hare Intl
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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 August 11, 2026.
Ontario and O'Hare Intl flights
Browse other Ontario and O'Hare Intl flight options. Last updated on August 11, 2026.
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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 2,558,603 searches. Data last updated August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$294 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$189 | Average$301 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$190 | Average$485 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$232 | Average$405 | FlexibilityNo cancel fee | On-time52% |