$93+ Cheap flights from Chicago (CHI) to Ontario
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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YYZ
May 5 — May 121
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Ontario with Cheapflights
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Cheapest flights from Chicago to OntarioExplore the most affordable flight options available from Chicago to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 5, 2026.
Explore the most affordable flight options available from Chicago to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 5, 2026.
This Air Canada deal was found by Cheapflights users on 4/4. 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 6/232:00 pm
ORD
- YTZ
Nonstop1h 41m
Air Canada
Tue 7/77:20 pm
YTZ
- ORD
Nonstop1h 56m
Air Canada
Deal found 4/4![Air Canada logo]()
$218
This FlightHub deal was found by Cheapflights users on 4/1. 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 7/2110:25 am
MDW
- YTZ
Nonstop1h 40m
Porter Airlines
Sat 7/258:50 am
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/1![Porter Airlines logo]()
$219
This Air Canada deal was found by Cheapflights users on 4/4. 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 8/252:00 pm
ORD
- YTZ
Nonstop1h 41m
Air Canada
Wed 8/2612:15 pm
YTZ
- ORD
Nonstop1h 55m
Air Canada
Deal found 4/4![Air Canada logo]()
$219
This Mytrip deal was found by Cheapflights users on 4/2. 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 5/18:35 pm
ORD
- YYZ
Nonstop1h 43m
Air Canada
Mon 5/46:40 pm
YYZ
- ORD
Nonstop2h 00m
Air Canada
Deal found 4/2![Air Canada logo]()
$219
This oojo deal was found by Cheapflights users on 4/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:55 pm
MDW
- YTZ
Nonstop1h 42m
Porter Airlines
Tue 4/219:25 am
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/4![Porter Airlines logo]()
$220
This Vliegwinkel deal was found by Cheapflights users on 3/31. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:00 am
MDW
- YTZ
Nonstop1h 42m
Porter Airlines
Sun 4/262:30 pm
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 3/31![Porter Airlines logo]()
$221
This Air Canada deal was found by Cheapflights users on 3/31. 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 7/1311:05 am
ORD
- YTZ
1 stop5h 46m
Air Canada
Sat 7/1812:15 pm
YTZ
- ORD
Nonstop1h 55m
Air Canada
Deal found 3/31![Air Canada logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Thu 4/2311:00 am
MDW
- YTZ
Nonstop1h 42m
Multiple Airlines
Sun 4/261:30 pm
YTZ
- MDW
1 stop24h 30m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$222
This Air Canada deal was found by Cheapflights users on 3/31. 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 7/133:45 pm
ORD
- YYZ
Nonstop1h 45m
Air Canada
Sat 7/188:05 am
YYZ
- ORD
Nonstop1h 55m
Air Canada
Deal found 3/31![Air Canada logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Fri 5/17:30 am
MDW
- YTZ
1 stop25h 05m
Multiple Airlines
Sun 5/38:55 am
YTZ
- MDW
Nonstop1h 50m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$223
This Air Canada deal was found by Cheapflights users on 4/1. 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 6/127:25 am
ORD
- YTZ
Nonstop1h 41m
Air Canada
Sun 6/1412:15 pm
YTZ
- ORD
Nonstop1h 55m
Air Canada
Deal found 4/1![Air Canada logo]()
$223
This Mytrip deal was found by Cheapflights users on 4/2. 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 4/167:55 am
ORD
- YYZ
Nonstop1h 36m
Air Canada
Fri 4/176:15 am
YYZ
- ORD
1 stop5h 38m
Air Canada
Deal found 4/2![Air Canada logo]()
$223
Best flights from Chicago to OntarioDiscover carefully curated flight deals from Chicago to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 5, 2026.
Discover carefully curated flight deals from Chicago to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 5, 2026.
This oojo deal was found by Cheapflights users on 4/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:55 pm
MDW
- YTZ
Nonstop1h 42m
Porter Airlines
Tue 4/219:25 am
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/4![Porter Airlines logo]()
$220
This Air Canada deal was found by Cheapflights users on 4/4. 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 6/257:25 am
ORD
- YTZ
Nonstop1h 41m
Air Canada
Sat 6/277:20 pm
YTZ
- ORD
Nonstop1h 56m
Air Canada
Deal found 4/4![Air Canada logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Fri 5/17:30 am
MDW
- YTZ
1 stop25h 05m
Multiple Airlines
Sun 5/38:55 am
YTZ
- MDW
Nonstop1h 50m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$223
This United Airlines deal was found by Cheapflights users on 4/4. 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 6/257:09 am
ORD
- YYZ
Nonstop1h 45m
United Airlines
Sat 6/277:00 am
YYZ
- ORD
Nonstop2h 00m
United Airlines
Deal found 4/4![United Airlines logo]()
$230
This Delta deal was found by Cheapflights users on 4/1. 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 5/99:22 am
MDW
- YYZ
1 stop4h 57m
Delta
Sun 5/106:10 am
YYZ
- MDW
1 stop3h 33m
Delta
Deal found 4/1![Delta logo]()
$247
This Mytrip deal was found by Cheapflights users on 4/1. 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 5/910:30 am
MDW
- YTZ
Nonstop1h 40m
Air Transat
Sun 5/108:55 am
YTZ
- MDW
Nonstop1h 50m
Air Transat
Deal found 4/1![Air Transat logo]()
$267
This Air Canada deal was found by Cheapflights users on 4/4. 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 6/12:00 pm
ORD
- YTZ
Nonstop1h 41m
Air Canada
Wed 6/312:15 pm
YTZ
- ORD
Nonstop1h 55m
Air Canada
Deal found 4/4![Air Canada logo]()
$223
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/71:01 pm
ORD
- YYZ
Nonstop1h 45m
United Airlines
Tue 5/129:00 pm
YYZ
- ORD
Nonstop2h 01m
United Airlines
Deal found 4/1![United Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 4/4. 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 5/79:22 am
MDW
- YYZ
1 stop3h 08m
Delta
Sun 5/106:10 am
YYZ
- MDW
1 stop3h 33m
Delta
Deal found 4/4![Delta logo]()
$247
This Trip.com deal was found by Cheapflights users on 4/4. 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.
Mon 6/110:25 am
MDW
- YTZ
Nonstop1h 40m
Porter Airlines
Wed 6/31:45 pm
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/4![Porter Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 4/2. 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 5/289:15 pm
ORD
- YYZ
Nonstop1h 44m
United Airlines
Sun 5/318:50 am
YYZ
- ORD
Nonstop2h 00m
United Airlines
Deal found 4/2![United Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Thu 4/3011:00 am
MDW
- YTZ
Nonstop1h 42m
Multiple Airlines
Sun 5/311:55 am
YTZ
- MDW
2 stops26h 05m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 4/4. 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 7/221:49 pm
MDW
- YYZ
1 stop8h 25m
Delta
Sat 7/2512:09 pm
YYZ
- MDW
1 stop6h 53m
Delta
Deal found 4/4![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/242:58 pm
ORD
- YYZ
Nonstop1h 58m
United Airlines
Sun 4/267:00 am
YYZ
- ORD
Nonstop2h 03m
United Airlines
Deal found 4/1![United Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Wed 6/103:20 pm
MDW
- YTZ
Nonstop1h 40m
Porter Airlines
Sat 6/138:50 am
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/1![Porter Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 3/31. 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 5/296:36 pm
MDW
- YYZ
1 stop3h 23m
Delta
Sun 5/316:10 am
YYZ
- MDW
1 stop3h 33m
Delta
Deal found 3/31![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/27:09 am
ORD
- YYZ
Nonstop1h 45m
United Airlines
Mon 5/49:00 pm
YYZ
- ORD
Nonstop2h 01m
United Airlines
Deal found 4/1![United Airlines logo]()
$232
This Trip.com deal was found by Cheapflights users on 4/4. 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.
Fri 4/244:05 pm
MDW
- YTZ
Nonstop1h 42m
Porter Airlines
Sun 4/262:30 pm
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/4![Porter Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 3/31. 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 5/66:38 pm
MDW
- YYZ
1 stop3h 18m
Delta
Sun 5/1012:09 pm
YYZ
- MDW
1 stop7h 24m
Delta
Deal found 3/31![Delta logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Thu 5/71:49 pm
ORD
- YTZ
2 stops23h 59m
Multiple Airlines
Sun 5/101:40 pm
YTZ
- ORD
1 stop5h 58m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 4/3. 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 4/305:57 pm
ORD
- YYZ
Nonstop1h 47m
United Airlines
Sun 5/31:00 pm
YYZ
- ORD
Nonstop2h 01m
United Airlines
Deal found 4/3![United Airlines logo]()
$232
This Air Canada deal was found by Cheapflights users on 4/4. 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 5/28:45 am
ORD
- YTZ
1 stop6h 07m
Air Canada
Sun 5/37:40 am
YTZ
- ORD
1 stop5h 37m
Air Canada
Deal found 4/4![Air Canada logo]()
$313
This FlightHub deal was found by Cheapflights users on 4/2. 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 5/1610:30 am
MDW
- YTZ
Nonstop1h 40m
Porter Airlines
Tue 5/198:55 am
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/2![Porter Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 4/4. 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 5/19:29 am
MDW
- YYZ
1 stop8h 02m
Delta
Tue 5/56:10 am
YYZ
- MDW
1 stop3h 37m
Delta
Deal found 4/4![Delta logo]()
$247
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:45 pm
ORD
- YOW
2 stops21h 06m
American Airlines
Mon 4/276:45 am
YOW
- ORD
2 stops29h 13m
American Airlines
Deal found 4/1![American Airlines logo]()
$725
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/69:04 am
ORD
- YYZ
Nonstop1h 45m
United Airlines
Sat 5/98:50 am
YYZ
- ORD
Nonstop2h 00m
United Airlines
Deal found 4/1![United Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Mon 5/117:33 pm
ORD
- YTZ
3 stops25h 15m
Multiple Airlines
Tue 10/610:05 am
YTZ
- ORD
Nonstop1h 55m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 4/4. 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.
Thu 6/1810:25 am
MDW
- YTZ
Nonstop1h 40m
Porter Airlines
Mon 6/221:45 pm
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/4![Porter Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 3/31. 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 5/86:36 pm
MDW
- YYZ
1 stop3h 23m
Delta
Sun 5/106:10 am
YYZ
- MDW
1 stop3h 33m
Delta
Deal found 3/31![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 4/4. 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 6/187:09 am
ORD
- YYZ
Nonstop1h 45m
United Airlines
Mon 6/2211:00 am
YYZ
- ORD
Nonstop2h 00m
United Airlines
Deal found 4/4![United Airlines logo]()
$232
Last-minute flights from Chicago to OntarioDiscover last-minute flight deals from Chicago to Ontario. Data last updated April 5, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Ontario. Data last updated April 5, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 4/2. 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 4/167:55 am
ORD
- YYZ
Nonstop1h 36m
Air Canada
Fri 4/176:15 am
YYZ
- ORD
1 stop5h 38m
Air Canada
Deal found 4/2![Air Canada logo]()
$223
This oojo deal was found by Cheapflights users on 4/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:55 pm
MDW
- YTZ
Nonstop1h 42m
Porter Airlines
Tue 4/219:25 am
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/4![Porter Airlines logo]()
$220
This Mytrip deal was found by Cheapflights users on 4/2. 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 4/187:55 am
ORD
- YYZ
Nonstop1h 36m
Air Canada
Sat 4/182:15 pm
YYZ
- ORD
Nonstop2h 00m
Air Canada
Deal found 4/2![Air Canada logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Wed 4/227:30 am
MDW
- YTZ
2 stops11h 33m
Multiple Airlines
Sat 4/2511:20 am
YTZ
- MDW
Nonstop1h 50m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Wed 4/227:30 am
MDW
- YTZ
2 stops11h 33m
Multiple Airlines
Wed 4/299:25 am
YTZ
- MDW
Nonstop1h 50m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$228
This Vliegwinkel deal was found by Cheapflights users on 3/31. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:00 am
MDW
- YTZ
Nonstop1h 42m
Porter Airlines
Sun 4/262:30 pm
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 3/31![Porter Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Thu 4/2311:00 am
MDW
- YTZ
Nonstop1h 42m
Multiple Airlines
Sun 4/261:30 pm
YTZ
- MDW
1 stop24h 30m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:50 am
ORD
- YYZ
Nonstop1h 45m
American Airlines
Tue 5/51:15 pm
YYZ
- ORD
Nonstop2h 05m
American Airlines
Deal found 3/31![American Airlines logo]()
$227
This Mytrip deal was found by Cheapflights users on 4/2. 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 5/18:35 pm
ORD
- YYZ
Nonstop1h 43m
Air Canada
Mon 5/46:40 pm
YYZ
- ORD
Nonstop2h 00m
Air Canada
Deal found 4/2![Air Canada logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Fri 5/17:30 am
MDW
- YTZ
1 stop25h 05m
Multiple Airlines
Sun 5/38:55 am
YTZ
- MDW
Nonstop1h 50m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$223
This Trip.com deal was found by Cheapflights users on 4/1. 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.
Sat 5/910:30 am
MDW
- YTZ
Nonstop1h 40m
Porter Airlines
Sun 5/108:55 am
YTZ
- MDW
Nonstop1h 50m
Porter Airlines
Deal found 4/1![Porter Airlines logo]()
$219
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/132:50 pm
ORD
- YYZ
Nonstop1h 50m
American Airlines
Thu 5/146:15 am
YYZ
- ORD
Nonstop2h 10m
American Airlines
Deal found 3/31![American Airlines logo]()
$222
One-way flights from Chicago to OntarioSearch for one-way flight options from Chicago to Ontario. Find affordable one-way fares based on user searches. Data last updated April 5, 2026.
Search for one-way flight options from Chicago to Ontario. Find affordable one-way fares based on user searches. Data last updated April 5, 2026.
This SmartFares deal was found by Cheapflights users on 4/2. 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.
Thu 4/3011:00 am
MDW
- YTZ
Nonstop1h 42m
Air Transat
Deal found 4/2![Air Transat logo]()
$93
This Air Canada deal was found by Cheapflights users on 4/1. 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 7/2211:05 am
ORD
- YTZ
1 stop5h 46m
Air Canada
Deal found 4/1![Air Canada logo]()
$93
This Air Canada deal was found by Cheapflights users on 4/1. 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 7/311:05 am
ORD
- YYZ
1 stop6h 00m
Air Canada
Deal found 4/1![Air Canada logo]()
$93
This Delta deal was found by Cheapflights users on 3/31. 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 5/67:00 am
ORD
- YYZ
1 stop5h 24m
Delta
Deal found 3/31![Delta logo]()
$94
This Delta deal was found by Cheapflights users on 3/31. 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 6/59:23 am
MDW
- YYZ
1 stop8h 08m
Delta
Deal found 3/31![Delta logo]()
$94
This Flightnetwork deal was found by Cheapflights users on 4/3. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:00 pm
ORD
- YTZ
Nonstop1h 41m
Air Canada
Deal found 4/3![Air Canada logo]()
$95
This Flightnetwork deal was found by Cheapflights users on 4/3. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:50 am
ORD
- YYZ
Nonstop1h 45m
Air Canada
Deal found 4/3![Air Canada logo]()
$95
This iWofly deal was found by Cheapflights users on 4/1. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:45 am
ORD
- YTZ
1 stop6h 07m
Air Canada
Deal found 4/1![Air Canada logo]()
$96
This Trip.com deal was found by Cheapflights users on 4/4. 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.
Thu 5/710:30 am
MDW
- YTZ
Nonstop1h 40m
Air Transat
Deal found 4/4![Air Transat logo]()
$97
This Air Canada deal was found by Cheapflights users on 4/1. 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 8/258:45 am
ORD
- YTZ
1 stop6h 06m
Air Canada
Deal found 4/1![Air Canada logo]()
$97
This Air Canada deal was found by Cheapflights users on 4/1. 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 8/258:45 am
ORD
- YYZ
1 stop5h 50m
Air Canada
Deal found 4/1![Air Canada logo]()
$97
This Trip.com deal was found by Cheapflights users on 4/3. 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.
Fri 6/193:20 pm
MDW
- YTZ
Nonstop1h 40m
Air Transat
Deal found 4/3![Air Transat logo]()
$98
Find flight deals from Chicago to Ontario
Keep the following information in mind while searching for Chicago to Ontario flight deals. Data was last updated April 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (FlightHub) |
One-way from | $93 (SmartFares) |
Popular in | December |
Cheapest in | September |
Average price | $280 |
Good round-trip deal | $222 or less |
Good one-way deal | $111 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Ontario 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 April 5, 2026.
Use the filters below to find and compare flights from Chicago to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoToronto
MDW - YTZ
MDWYTZ
Chicago Midway
Sat 4/18
12:55 pm-3:37 pm
Nonstop1h 42m
Toronto Island
Tue 4/21
9:25 am-10:15 am
Nonstop1h 50m
$220
ChicagoToronto
ORD - YTZ
ORDYTZ
Chicago O'Hare Intl
Thu 6/25
7:25 am-10:06 am
Nonstop1h 41m
Toronto Island
Sat 6/27
7:20 pm-8:16 pm
Nonstop1h 56m
$221
ChicagoToronto
MDW - YTZ
MDWYTZ
Chicago Midway
Fri 5/1
7:30 am-9:35 am
1 stop25h 05m
Toronto Island
Sun 5/3
8:55 am-9:45 am
Nonstop1h 50m
$223
ChicagoToronto
ORD - YTZ
ORDYTZ
Chicago O'Hare Intl
Mon 6/1
2:00 pm-4:41 pm
Nonstop1h 41m
Toronto Island
Wed 6/3
12:15 pm-1:10 pm
Nonstop1h 55m
$223
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Thu 6/25
7:09 am-9:54 am
Nonstop1h 45m
Toronto Pearson Intl
Sat 6/27
7:00 am-8:00 am
Nonstop2h 00m
$230
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Thu 5/7
1:01 pm-3:46 pm
Nonstop1h 45m
Toronto Pearson Intl
Tue 5/12
9:00 pm-10:01 pm
Nonstop2h 01m
$232
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Thu 5/28
9:15 pm-11:59 pm
Nonstop1h 44m
Toronto Pearson Intl
Sun 5/31
8:50 am-9:50 am
Nonstop2h 00m
$232
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Fri 4/24
2:58 pm-5:56 pm
Nonstop1h 58m
Toronto Pearson Intl
Sun 4/26
7:00 am-8:03 am
Nonstop2h 03m
$232
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Sat 5/2
7:09 am-9:54 am
Nonstop1h 45m
Toronto Pearson Intl
Mon 5/4
9:00 pm-10:01 pm
Nonstop2h 01m
$232
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Thu 4/30
5:57 pm-8:44 pm
Nonstop1h 47m
Toronto Pearson Intl
Sun 5/3
1:00 pm-2:01 pm
Nonstop2h 01m
$232
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Chicago to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Chicago with our price prediction graph.
ORD-YYZ
MDW-YTZ
ORD-YTZ
ORD-YOW
MDW-YUL
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 Chicago to Ontario
CHI-CAON
ORD-YYZ
MDW-YTZ
ORD-YTZ
ORD-YOW
What is the cheapest month to book a flight from Chicago to Region of Ontario?
Currently, October is the cheapest month in which you can book a flight from Chicago to Region of Ontario (average of $84). Flying from Chicago to Region of Ontario in February is currently the most expensive (average of $189). 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 CHI to ON?
Find hourly flight availability from Chicago to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 5, 2026.
It’s optimal to fly from Chicago to Region of Ontario in the morning. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Chicago to Region of Ontario?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Ontario. Price data was last updated on April 4, 2026.
Travelers seeking maximum savings on their Chicago to Region of Ontario flight should consider departing on Monday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago to Region of Ontario
Explore weekly flight availability from Chicago to Ontario. 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 April 5, 2026.
The most flights from CHI to CAON are scheduled on a Friday (63 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).
How much does it cost to fly round-trip from Chicago to Region of Ontario?
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 5, 2026.
See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Chicago to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Entertainment
7.0
Overall
8.0
Boarding
8.2
Food
7.6
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Comfort
8.0
Entertainment
7.0
Overall
8.0
Boarding
8.2
Food
7.6
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Comfort
8.0
Entertainment
7.0
Overall
8.0
Boarding
8.2
Food
7.6
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Comfort
8.0
Entertainment
7.0
Overall
8.0
Boarding
8.2
Food
7.6
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Comfort
8.0
Entertainment
7.0
Overall
8.0
Boarding
8.2
Food
7.6
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Comfort
8.0
Entertainment
7.0
Overall
8.0
Boarding
8.2
Food
7.6
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Related info for your journey
Find useful and relevant information for your journey from Chicago to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Chicago to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Ontario by cabin class
Find flights from Chicago to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Ontario flights
Browse other Chicago and Ontario flight options. Last updated on April 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Ontario flights
Consider these flights traveling from Chicago to Ontario.
Top 7 airlines flying from Chicago to Ontario
Discover the top 7 airlines that operate flights from Chicago to Ontario. 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 April 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$303 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$102 | Average$290 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$145 | Average$415 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$160 | Average$403 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$170 | Average$319 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$172 | Average$320 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$213 | Average$354 | FlexibilityNo cancel fee | On-time71% |