$160+ Cheap flights from Ontario (ONT) to Wisconsin
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MKE
Oct 30 — Nov 61
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Wisconsin 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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Wisconsin
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Cheapest flights from Ontario to WisconsinExplore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 30, 2026.
Explore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 30, 2026.
This Frontier deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Wed 11/185:07 pm -
2 stops14h 09m
Mon 11/236:11 pm -
2 stops19h 28m
Deal found 9/29![Frontier logo]()
$339
This Mytrip deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Wed 10/2111:26 am -
2 stops24h 00m
Mon 10/262:25 pm -
2 stops21h 15m
Deal found 9/29![Multiple Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 12/235:00 pm -
1 stop5h 15m
Wed 12/305:10 am -
1 stop8h 40m
Deal found 9/29![Southwest logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/286:25 am -
2 stops24h 51m
Thu 10/296:58 pm -
1 stop18h 18m
Deal found 9/29![Multiple Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:35 pm -
1 stop6h 21m
Sat 10/315:30 am -
1 stop7h 36m
Deal found 9/25![Delta logo]()
$377
This American Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Mon 11/21:23 pm -
1 stop6h 04m
Mon 11/237:05 am -
1 stop6h 46m
Deal found 9/29![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:16 pm -
1 stop8h 01m
Sat 11/75:30 am -
1 stop7h 36m
Deal found 9/25![Delta logo]()
$380
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/115:55 am -
2 stops7h 45m
Wed 11/115:55 pm -
1 stop5h 50m
Deal found 9/29![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 11/101:29 pm -
1 stop5h 19m
Wed 11/188:00 am -
2 stops12h 01m
Deal found 9/26![United Airlines logo]()
$384
This Frontier deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Thu 10/16:15 am -
1 stop11h 00m
Sun 10/48:00 pm -
1 stop5h 47m
Deal found 9/29![Frontier logo]()
$386
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/111:30 pm -
2 stops7h 45m
Thu 11/1211:35 am -
2 stops8h 55m
Deal found 9/29![Southwest logo]()
$387
This Southwest deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 12/235:00 pm -
1 stop5h 15m
Tue 12/295:10 am -
1 stop8h 40m
Deal found 9/26![Southwest logo]()
$388
Best flights from Ontario to WisconsinDiscover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 30, 2026.
Discover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 30, 2026.
This Frontier deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Wed 11/185:07 pm -
2 stops14h 09m
Mon 11/236:11 pm -
2 stops19h 28m
Deal found 9/29![Frontier logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Mon 11/26:30 am -
1 stop5h 29m
Mon 11/2311:22 am -
1 stop9h 30m
Deal found 9/29![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:16 pm -
1 stop8h 01m
Sat 11/75:30 am -
1 stop7h 36m
Deal found 9/25![Delta logo]()
$380
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 11/111:55 pm -
1 stop5h 55m
Thu 11/1211:35 am -
2 stops8h 55m
Deal found 9/29![Southwest logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop7h 42m
Sun 11/224:33 pm -
1 stop8h 58m
Deal found 9/27![Alaska Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 2/67:00 am -
1 stop8h 51m
Tue 2/93:09 pm -
1 stop7h 11m
Deal found 9/27![United Airlines logo]()
$481
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/1611:10 pm -
2 stops10h 33m
Wed 12/212:46 pm -
2 stops12h 13m
Deal found 9/27![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Thu 10/297:34 pm -
2 stops13h 26m
Mon 11/24:53 pm -
2 stops18h 07m
Deal found 9/29![American Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/2412:16 pm -
1 stop9h 37m
Sat 10/314:00 pm -
2 stops8h 12m
Deal found 9/26![Delta logo]()
$410
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/101:29 pm -
1 stop5h 30m
Wed 11/112:35 pm -
1 stop8h 16m
Deal found 9/28![United Airlines logo]()
$497
This Southwest deal was found by Cheapflights users on 9/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/198:00 am -
1 stop9h 20m
Sun 1/105:45 am -
2 stops9h 35m
Deal found 9/25![Southwest logo]()
$518
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop7h 42m
Mon 11/236:00 am -
1 stop19h 31m
Deal found 9/29![Alaska Airlines logo]()
$525
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:56 pm -
2 stops12h 54m
Sun 11/155:20 am -
1 stop7h 43m
Deal found 9/25![Delta logo]()
$437
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 11/171:29 pm -
1 stop5h 19m
Thu 11/268:00 am -
1 stop9h 59m
Deal found 9/27![United Airlines logo]()
$499
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
1 stop7h 42m
Mon 11/236:00 am -
1 stop16h 03m
Deal found 9/29![Alaska Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/67:00 am -
1 stop6h 55m
Tue 2/912:32 pm -
2 stops9h 48m
Deal found 9/25![United Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:16 pm -
1 stop7h 52m
Wed 10/285:35 am -
1 stop7h 31m
Deal found 9/29![Delta logo]()
$494
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
2 stops11h 10m
Tue 11/108:00 am -
2 stops14h 15m
Deal found 9/28![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 1/276:00 am -
2 stops11h 16m
Sat 1/308:00 am -
2 stops11h 47m
Deal found 9/28![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/231:24 pm -
2 stops7h 55m
Wed 10/288:00 am -
2 stops12h 01m
Deal found 9/29![United Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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.
Mon 11/231:30 pm -
2 stops8h 50m
Tue 12/112:26 pm -
2 stops11h 26m
Deal found 9/28![American Airlines logo]()
$756
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/2112:16 pm -
1 stop8h 11m
Mon 10/265:30 am -
1 stop7h 36m
Deal found 9/27![Delta logo]()
$569
This American Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/2512:45 pm -
2 stops9h 35m
Tue 12/112:26 pm -
2 stops11h 26m
Deal found 9/28![American Airlines logo]()
$757
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 12/316:00 am -
2 stops13h 09m
Wed 1/134:15 pm -
2 stops8h 33m
Deal found 9/26![Delta logo]()
$593
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 12/316:00 am -
2 stops13h 09m
Tue 1/124:15 pm -
2 stops8h 33m
Deal found 9/27![Delta logo]()
$593
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:00 am -
2 stops12h 10m
Wed 11/186:15 am -
2 stops8h 18m
Deal found 9/28![United Airlines logo]()
$595
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/2112:16 pm -
1 stop8h 11m
Sun 10/255:30 am -
1 stop7h 36m
Deal found 9/29![Delta logo]()
$599
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:00 am -
2 stops13h 09m
Sat 1/94:15 pm -
2 stops8h 33m
Deal found 9/26![Delta logo]()
$602
This American Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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.
Sat 10/1012:43 pm -
2 stops9h 16m
Sat 10/2412:23 pm -
3 stops10h 58m
Deal found 9/27![American Airlines logo]()
$992
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 1/11:15 pm -
2 stops24h 47m
Fri 1/84:15 pm -
2 stops8h 33m
Deal found 9/27![Delta logo]()
$613
Last-minute flights from Ontario to WisconsinDiscover last-minute flight deals from Ontario to Wisconsin. Data last updated September 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Wisconsin. Data last updated September 30, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Thu 10/16:15 am -
1 stop11h 00m
Sun 10/48:00 pm -
1 stop5h 47m
Deal found 9/29![Frontier logo]()
$386
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:07 am -
1 stop8h 18m
Tue 10/2012:41 pm -
2 stops12h 02m
Deal found 9/25![Delta logo]()
$423
This Mytrip deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Wed 10/2111:26 am -
2 stops24h 00m
Mon 10/262:25 pm -
2 stops21h 15m
Deal found 9/29![Multiple Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/217:34 pm -
2 stops11h 48m
Mon 10/268:04 pm -
2 stops15h 06m
Deal found 9/27![American Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:35 pm -
1 stop6h 21m
Sat 10/315:30 am -
1 stop7h 36m
Deal found 9/25![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/2412:16 pm -
1 stop9h 37m
Thu 10/295:30 am -
1 stop7h 36m
Deal found 9/26![Delta logo]()
$418
This Kiwi.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/286:25 am -
2 stops24h 51m
Thu 10/296:58 pm -
1 stop18h 18m
Deal found 9/29![Multiple Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/286:00 pm -
2 stops14h 09m
Wed 11/47:05 am -
1 stop7h 31m
Deal found 9/27![Delta logo]()
$382
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/281:35 pm -
2 stops8h 20m
Thu 10/296:30 pm -
2 stops7h 25m
Deal found 9/29![Southwest logo]()
$403
This Mytrip deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Wed 10/286:25 am -
3 stops29h 01m
Mon 11/22:40 pm -
3 stops27h 58m
Deal found 9/29![Multiple Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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.
Thu 10/297:34 pm -
2 stops13h 26m
Mon 11/24:53 pm -
2 stops18h 07m
Deal found 9/29![American Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:16 pm -
1 stop8h 01m
Sat 11/75:30 am -
1 stop7h 36m
Deal found 9/25![Delta logo]()
$380
One-way flights from Ontario to WisconsinSearch for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated September 30, 2026.
Search for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated September 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/235:01 am -
2 stops34h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$160
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/245:00 pm -
1 stop5h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$184
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:16 pm -
1 stop9h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$189
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/317:07 am -
2 stops10h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$194
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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 11/255:00 pm -
1 stop5h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$200
This Mytrip deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” 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.
Wed 10/215:25 pm -
2 stops13h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$203
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:35 pm -
1 stop6h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$204
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:18 pm -
1 stop9h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Delta logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/254:01 pm -
1 stop21h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Alaska Airlines logo]()
$212
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:18 pm -
1 stop8h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Delta logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” 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 10/211:24 pm -
1 stop5h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$295
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” 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 10/276:00 am -
2 stops9h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![United Airlines logo]()
$300
Find flight deals from Ontario to Wisconsin
Keep the following information in mind while searching for Ontario to Wisconsin flight deals. Data was last updated September 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (Frontier) |
One-way from | $160 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $522 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Wisconsin 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 September 30, 2026.
Use the filters below to find and compare flights from Ontario to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Tue 10/27
1:35 pm-9:56 pm
1 stop6h 21m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$189
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Sat 10/31
7:07 am-5:25 pm
1 stop8h 18m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$189
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Thu 11/26
12:18 pm-10:28 pm
1 stop8h 10m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$189
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Sat 10/17
7:07 am-5:25 pm
1 stop8h 18m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$189
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Wed 11/25
5:00 pm-12:20 am
1 stop5h 20m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$202
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Fri 10/30
7:07 am-5:40 pm
1 stop8h 33m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$205
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Wed 11/25
12:18 pm-11:54 pm
1 stop9h 36m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$207
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Wed 11/25
4:01 pm-3:35 pm
1 stop21h 34m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$212
OntarioMilwaukee
ONT Ontario - MKE Milwaukee-Mitchell
ONTMKE
Ontario
Tue 10/27
6:02 am-10:42 pm
2 stops14h 40m
Milwaukee-Mitchell
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$244
OntarioGreen Bay
ONT Ontario - GRB Green Bay Austin-Straubel
ONTGRB
Ontario
Wed 11/25
12:18 pm-10:29 pm
1 stop8h 11m
Green Bay Austin-Straubel
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$287
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Wisconsin
Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Ontario with our price prediction graph.
ONT-MKE
ONT-GRB
ONT-ATW
ONT-MSN
ONT-CWA
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 Wisconsin
ONT-USWI
ONT-MKE
ONT-GRB
ONT-ATW
ONT-MSN
What is the cheapest month to book a flight from Ontario to Wisconsin?
Currently, November is the cheapest month in which you can book a flight from Ontario to Wisconsin (average of $396). Flying from Ontario to Wisconsin in July is currently the most expensive (average of $717). 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 Ontario to Wisconsin?
Airfare is below average for this route at the moment.
Ontario to Wisconsin flights typically cost between $439 and $527 in November.The cheapest round-trip price found within the last 5 days was $339 on Frontier (Nov 18-Nov 23).
Reviews of airlines servicing Wisconsin
Get insights into the airlines that provide service to Wisconsin. 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 Wisconsin. Reviews last updated September 30, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to Wisconsin. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Wisconsin. 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 Ontario to Wisconsin
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Wisconsin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Wisconsin by cabin class
Find flights from Ontario to Wisconsin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Wisconsin flights
Browse other Ontario and Wisconsin flight options. Last updated on September 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Wisconsin flights
Consider these flights traveling from Ontario to Wisconsin.
Top 4 airlines flying from Ontario to Wisconsin
Discover the top 4 airlines that operate flights from Ontario to Wisconsin. 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 September 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$230 | Average$478 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$313 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$333 | Average$515 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$354 | Average$493 | FlexibilityNo cancel fee | On-time63% |