$71+ Cheap flights from Wisconsin to Ontario (ONT)
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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ONT
Sep 24 — Oct 11
Round-trip
1 adult, Economy
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Find cheap flights from Wisconsin to Ontario 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 Wisconsin to OntarioExplore the most affordable flight options available from Wisconsin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2026.
Explore the most affordable flight options available from Wisconsin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/262:33 pm -
1 stop11h 14m
Tue 9/2911:45 am -
1 stop10h 23m
Deal found 8/25![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Tue 10/62:33 pm -
1 stop11h 14m
Wed 10/1411:52 am -
1 stop10h 14m
Deal found 8/22![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/307:00 am -
1 stop18h 47m
Mon 10/511:45 am -
1 stop23h 53m
Deal found 8/24![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 10/297:00 am -
1 stop18h 51m
Tue 11/311:52 am -
1 stop10h 12m
Deal found 8/23![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 11/52:33 pm -
1 stop11h 18m
Tue 11/1011:52 am -
1 stop10h 12m
Deal found 8/24![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/292:33 pm -
1 stop11h 18m
Wed 11/116:25 am -
1 stop15h 39m
Deal found 8/21![Frontier logo]()
$164
This Trip.com deal was found by Cheapflights users on 8/25. 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 9/222:33 pm -
1 stop11h 14m
Thu 9/246:15 am -
1 stop15h 53m
Deal found 8/25![Frontier logo]()
$173
This Trip.com deal was found by Cheapflights users on 8/22. 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 9/242:33 pm -
1 stop11h 14m
Wed 9/306:15 am -
1 stop15h 53m
Deal found 8/22![Frontier logo]()
$174
This Trip.com deal was found by Cheapflights users on 8/22. 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 9/157:00 am -
1 stop18h 47m
Sat 9/196:15 am -
1 stop15h 53m
Deal found 8/22![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Tue 9/156:30 am -
1 stop30h 00m
Mon 9/216:15 am -
1 stop16h 08m
Deal found 8/23![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Tue 10/66:30 am -
1 stop19h 17m
Tue 10/136:15 am -
1 stop16h 09m
Deal found 8/22![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/266:30 am -
1 stop30h 05m
Wed 10/2811:52 am -
1 stop10h 29m
Deal found 8/21![Frontier logo]()
$194
Best flights from Wisconsin to OntarioDiscover carefully curated flight deals from Wisconsin to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
Discover carefully curated flight deals from Wisconsin to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 10/102:36 pm -
1 stop11h 14m
Mon 10/126:15 am -
1 stop15h 51m
Deal found 8/22![Frontier logo]()
$230
This United Airlines deal was found by Cheapflights users on 8/21. 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 9/65:55 am -
1 stop8h 55m
Thu 9/109:01 am -
1 stop7h 31m
Deal found 8/21![United Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 8/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:20 am -
1 stop7h 20m
Tue 12/112:50 pm -
1 stop8h 20m
Deal found 8/22![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 8/21. 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.
Mon 11/237:50 am -
1 stop6h 20m
Thu 12/36:00 am -
1 stop5h 35m
Deal found 8/21![Delta logo]()
$357
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/305:05 pm -
2 stops18h 24m
Sun 10/47:11 pm -
2 stops13h 49m
Deal found 8/20![American Airlines logo]()
$670
This United Airlines deal was found by Cheapflights users on 8/20. 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 9/98:33 pm -
Nonstop4h 26m
Tue 9/151:18 pm -
1 stop6h 12m
Deal found 8/20![United Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 8/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:55 am -
2 stops8h 30m
Tue 11/310:25 am -
2 stops8h 55m
Deal found 8/23![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 8/20. 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 9/297:30 am -
1 stop6h 44m
Mon 10/510:00 pm -
1 stop9h 11m
Deal found 8/20![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 8/23. 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 9/118:33 pm -
Nonstop4h 26m
Tue 9/151:18 pm -
1 stop6h 41m
Deal found 8/23![United Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 8/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:10 am -
2 stops7h 30m
Mon 10/54:15 pm -
1 stop5h 55m
Deal found 8/20![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 8/24. 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 1/95:45 am -
1 stop7h 42m
Wed 1/137:00 am -
1 stop7h 34m
Deal found 8/24![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/28:20 pm -
Nonstop4h 29m
Wed 10/71:24 pm -
1 stop6h 28m
Deal found 8/24![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 8/20. 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.
Mon 10/196:07 pm -
1 stop7h 48m
Fri 10/231:35 pm -
1 stop5h 40m
Deal found 8/20![Delta logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/226:07 am -
1 stop8h 11m
Sat 10/248:03 am -
2 stops13h 24m
Deal found 8/24![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:45 am -
2 stops8h 10m
Sun 11/86:50 am -
1 stop6h 30m
Deal found 8/21![Southwest logo]()
$417
This Delta deal was found by Cheapflights users on 8/20. 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 10/207:45 am -
1 stop6h 51m
Fri 10/231:35 pm -
1 stop5h 40m
Deal found 8/20![Delta logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/22. 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 9/58:06 pm -
Nonstop4h 29m
Tue 9/81:56 pm -
1 stop7h 00m
Deal found 8/22![United Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 8/23. 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 2/203:55 pm -
1 stop8h 19m
Fri 2/267:00 am -
1 stop8h 45m
Deal found 8/23![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/22. 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 8/298:06 pm -
Nonstop4h 29m
Tue 9/11:18 pm -
1 stop6h 41m
Deal found 8/22![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:15 am -
2 stops15h 30m
Sat 10/1710:35 am -
2 stops7h 25m
Deal found 8/21![Southwest logo]()
$463
This Delta deal was found by Cheapflights users on 8/24. 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 1/75:45 am -
1 stop7h 42m
Sat 1/167:00 am -
1 stop7h 34m
Deal found 8/24![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/20. 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 11/134:35 pm -
1 stop8h 13m
Sun 11/227:00 am -
Nonstop4h 03m
Deal found 8/20![United Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/49:54 am -
2 stops10h 53m
Tue 9/812:33 pm -
2 stops9h 23m
Deal found 8/20![American Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 8/22. 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 9/46:00 am -
1 stop8h 12m
Sun 9/67:00 am -
Nonstop4h 10m
Deal found 8/22![United Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 8/24. 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 1/93:55 pm -
1 stop8h 19m
Sun 1/177:00 am -
1 stop8h 45m
Deal found 8/24![Delta logo]()
$412
This United Airlines deal was found by Cheapflights users on 8/24. 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 1/2010:34 am -
2 stops9h 13m
Tue 1/266:00 am -
2 stops9h 53m
Deal found 8/24![United Airlines logo]()
$369
This KAYAK deal was found by Cheapflights users on 8/23. 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.
Sun 9/610:22 am -
1 stop10h 08m
Thu 9/101:04 pm -
1 stop6h 07m
Deal found 8/23![Delta logo]()
$430
This Delta deal was found by Cheapflights users on 8/24. 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 1/85:45 am -
1 stop7h 42m
Tue 1/127:00 am -
1 stop7h 34m
Deal found 8/24![Delta logo]()
$438
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/268:20 pm -
Nonstop4h 29m
Mon 9/281:52 pm -
1 stop9h 07m
Deal found 8/24![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 8/20. 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 10/216:07 pm -
1 stop7h 48m
Fri 10/231:35 pm -
1 stop5h 40m
Deal found 8/20![Delta logo]()
$441
Last-minute flights from Wisconsin to OntarioDiscover last-minute flight deals from Wisconsin to Ontario. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Wisconsin to Ontario. Data last updated August 25, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 9/116:30 am -
1 stop30h 00m
Mon 9/146:15 am -
1 stop16h 08m
Deal found 8/21![Frontier logo]()
$205
This Trip.com deal was found by Cheapflights users on 8/22. 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 9/157:00 am -
1 stop18h 47m
Sat 9/196:15 am -
1 stop15h 53m
Deal found 8/22![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Tue 9/156:30 am -
1 stop30h 00m
Mon 9/216:15 am -
1 stop16h 08m
Deal found 8/23![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/216:56 pm -
2 stops41h 34m
Mon 9/2811:45 am -
1 stop23h 53m
Deal found 8/22![Frontier logo]()
$205
This Trip.com deal was found by Cheapflights users on 8/25. 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 9/222:33 pm -
1 stop11h 14m
Thu 9/246:15 am -
1 stop15h 53m
Deal found 8/25![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Tue 9/226:30 am -
1 stop19h 17m
Tue 9/296:15 am -
1 stop16h 08m
Deal found 8/24![Frontier logo]()
$195
This Trip.com deal was found by Cheapflights users on 8/22. 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 9/242:33 pm -
1 stop11h 14m
Wed 9/306:15 am -
1 stop15h 53m
Deal found 8/22![Frontier logo]()
$174
This Trip.com deal was found by Cheapflights users on 8/25. 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 9/242:33 pm -
1 stop11h 14m
Thu 10/111:45 am -
1 stop10h 23m
Deal found 8/25![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/262:33 pm -
1 stop11h 14m
Tue 9/2911:45 am -
1 stop10h 23m
Deal found 8/25![Frontier logo]()
$138
This Frontier deal was found by Cheapflights users on 8/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
1 stop12h 46m
Thu 10/18:24 pm -
1 stop7h 14m
Deal found 8/21![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 9/286:56 pm -
2 stops41h 34m
Sat 10/311:45 am -
1 stop10h 23m
Deal found 8/21![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/307:00 am -
1 stop18h 47m
Mon 10/511:45 am -
1 stop23h 53m
Deal found 8/24![Frontier logo]()
$158
One-way flights from Wisconsin to OntarioSearch for one-way flight options from Wisconsin to Ontario. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
Search for one-way flight options from Wisconsin to Ontario. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
This Trip.com deal was found by Cheapflights users on 8/24. 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 10/212:36 pm -
1 stop11h 14m
Deal found 8/24![Frontier logo]()
$71
This Trip.com deal was found by Cheapflights users on 8/21. 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 9/222:33 pm -
1 stop11h 14m
Deal found 8/21![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 8/23. 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 9/307:00 am -
1 stop18h 47m
Deal found 8/23![Frontier logo]()
$87
This Trip.com deal was found by Cheapflights users on 8/24. 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 9/156:30 am -
1 stop19h 17m
Deal found 8/24![Frontier logo]()
$88
This Trip.com deal was found by Cheapflights users on 8/20. 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 9/162:33 pm -
1 stop11h 14m
Deal found 8/20![Frontier logo]()
$88
This Trip.com deal was found by Cheapflights users on 8/21. 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 9/152:33 pm -
1 stop11h 14m
Deal found 8/21![Frontier logo]()
$89
This Trip.com deal was found by Cheapflights users on 8/21. 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 11/106:30 am -
1 stop19h 21m
Deal found 8/21![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/216:30 am -
1 stop19h 20m
Deal found 8/24![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 8/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:30 am -
1 stop6h 00m
Deal found 8/23![Frontier logo]()
$98
This Super.com deal was found by Cheapflights users on 8/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:30 am -
1 stop6h 00m
Deal found 8/21![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 8/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
1 stop5h 59m
Deal found 8/21![Frontier logo]()
$100
This Trip.com deal was found by Cheapflights users on 8/21. 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 10/12:33 pm -
1 stop11h 14m
Deal found 8/21![Frontier logo]()
$102
Find flight deals from Wisconsin to Ontario
Keep the following information in mind while searching for Wisconsin to Ontario flight deals. Data was last updated August 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $138 (Kiwi.com) |
One-way from | $71 (Trip.com) |
Popular in | October |
Cheapest in | January |
Average price | $399 |
Cheapflights Fare Finder
Customize your flight search to find flights from Wisconsin 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 7,457,451 searches. Data last updated August 25, 2026.
Use the filters below to find and compare flights from Wisconsin to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MinneapolisOntario
MSP Minneapolis St Paul - ONT Ontario
MSPONT
Minneapolis St Paul
Sat 10/10
2:36 pm-11:50 pm
1 stop11h 14m
Ontario
Mon 10/12
6:15 am-12:06 am
1 stop15h 51m
$230
ChicagoOntario
ORD Chicago O'Hare Intl - ONT Ontario
ORDONT
Chicago O'Hare Intl
Sun 9/6
5:55 am-12:50 pm
1 stop8h 55m
Ontario
Thu 9/10
9:01 am-6:32 pm
1 stop7h 31m
$277
MilwaukeeOntario
MKE Milwaukee-Mitchell - ONT Ontario
MKEONT
Milwaukee-Mitchell
Mon 11/23
5:20 am-10:40 am
1 stop7h 20m
Ontario
Tue 12/1
12:50 pm-11:10 pm
1 stop8h 20m
$353
MinneapolisOntario
MSP Minneapolis St Paul - ONT Ontario
MSPONT
Minneapolis St Paul
Mon 11/23
7:50 am-12:10 pm
1 stop6h 20m
Ontario
Thu 12/3
6:00 am-1:35 pm
1 stop5h 35m
$357
Quickest round-trip
ChicagoOntario
ORD Chicago O'Hare Intl - ONT Ontario
ORDONT
Chicago O'Hare Intl
Wed 9/9
8:33 pm-10:59 pm
Nonstop4h 26m
Ontario
Tue 9/15
1:18 pm-9:30 pm
1 stop6h 12m
$358
ChicagoOntario
ORD Chicago O'Hare Intl - ONT Ontario
ORDONT
Chicago O'Hare Intl
Fri 9/11
8:33 pm-10:59 pm
Nonstop4h 26m
Ontario
Tue 9/15
1:18 pm-9:59 pm
1 stop6h 41m
$358
ChicagoOntario
ORD Chicago O'Hare Intl - ONT Ontario
ORDONT
Chicago O'Hare Intl
Fri 10/2
8:20 pm-10:49 pm
Nonstop4h 29m
Ontario
Wed 10/7
1:24 pm-9:52 pm
1 stop6h 28m
$358
ChicagoOntario
ORD Chicago O'Hare Intl - ONT Ontario
ORDONT
Chicago O'Hare Intl
Thu 10/22
6:07 am-12:18 pm
1 stop8h 11m
Ontario
Sat 10/24
8:03 am-11:27 pm
2 stops13h 24m
$364
MinneapolisOntario
MSP Minneapolis St Paul - ONT Ontario
MSPONT
Minneapolis St Paul
Thu 10/29
5:55 am-12:25 pm
2 stops8h 30m
Ontario
Tue 11/3
10:25 am-9:20 pm
2 stops8h 55m
$367
ChicagoOntario
ORD Chicago O'Hare Intl - ONT Ontario
ORDONT
Chicago O'Hare Intl
Sat 9/5
8:06 pm-10:35 pm
Nonstop4h 29m
Ontario
Tue 9/8
1:56 pm-10:56 pm
1 stop7h 00m
$367
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Wisconsin to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Wisconsin with our price prediction graph.
MSP-ONT
ORD-ONT
MKE-ONT
GRB-ONT
MSN-ONT
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 Wisconsin to Ontario
USWI-ONT
MSP-ONT
ORD-ONT
MKE-ONT
GRB-ONT
What is the cheapest month to book a flight from Wisconsin to Ontario?
Currently, January is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $341). Flying from Wisconsin to Ontario in June is currently the most expensive (average of $577). 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.
How much does it cost to fly round-trip from Wisconsin to Ontario?
Airfare is below average for this route at the moment.
Wisconsin to Ontario flights typically cost between $344 and $382 in December.The cheapest round-trip price found within the last 5 days was $337 on Delta (Dec 16-Dec 30).
Related info for your journey
Find useful and relevant information for your journey from Wisconsin to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Wisconsin 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 Wisconsin to Ontario by cabin class
Find flights from Wisconsin to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 25, 2026.
Wisconsin and Ontario flights
Browse other Wisconsin and Ontario flight options. Last updated on August 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Wisconsin to Ontario flights
Consider these flights traveling from Wisconsin to Ontario.
Top 4 airlines flying from Wisconsin to Ontario
Discover the top 4 airlines that operate flights from Wisconsin 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 7,457,451 searches. Data last updated August 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$440 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$323 | Average$482 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$334 | Average$476 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$360 | Average$479 | FlexibilityNo cancel fee | On-timeN/A |