$89+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ONT
Jul 5 — Jul 121
Round-trip
1 adult, Economy
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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 June 5, 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 June 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Tue 8/49:34 pm
ORD
- ONT
1 stop13h 03m
Frontier
Tue 8/1810:50 am
ONT
- ORD
1 stop8h 03m
Frontier
Deal found 6/3![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/510:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Wed 8/126:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Deal found 6/5![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 7/277:15 am
ORD
- ONT
1 stop26h 48m
Frontier
Tue 8/43:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/3![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Tue 7/79:34 pm
ORD
- ONT
1 stop13h 03m
Frontier
Tue 7/216:00 am
ONT
- ORD
1 stop12h 52m
Frontier
Deal found 6/3![Frontier logo]()
$205
This Frontier deal was found by Cheapflights users on 5/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/27:20 am
ORD
- ONT
1 stop9h 48m
Frontier
Mon 7/63:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 5/31![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 6/1. 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 9/210:15 pm
MSP
- ONT
1 stop13h 50m
Frontier
Thu 9/106:00 am
ONT
- MSP
1 stop13h 35m
Frontier
Deal found 6/1![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/410:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Tue 8/1110:49 am
ONT
- MSP
1 stop23h 29m
Frontier
Deal found 6/5![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 6/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:15 am
ORD
- ONT
1 stop9h 59m
Frontier
Wed 8/53:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/1![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:48 pm
ORD
- ONT
1 stop14h 17m
Frontier
Tue 6/303:34 pm
ONT
- ORD
1 stop11h 33m
Frontier
Deal found 6/2![Frontier logo]()
$221
This Gotogate deal was found by Cheapflights users on 6/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:46 pm
ORD
- ONT
1 stop15h 46m
Frontier
Wed 8/123:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/2![Frontier logo]()
$226
This Booking.com deal was found by Cheapflights users on 6/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:57 pm
ORD
- ONT
1 stop14h 07m
Frontier
Wed 8/121:38 pm
ONT
- ORD
1 stop13h 59m
Frontier
Deal found 6/2![Frontier logo]()
$228
This CheapOair deal was found by Cheapflights users on 6/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:57 pm
ORD
- ONT
1 stop14h 07m
Frontier
Mon 7/2711:52 am
ONT
- ORD
1 stop15h 45m
Frontier
Deal found 6/1![Frontier logo]()
$234
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 June 5, 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 June 5, 2026.
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:45 am
MSN
- ONT
1 stop7h 42m
Delta
Tue 11/1710:59 pm
ONT
- MSN
1 stop9h 16m
Delta
Deal found 6/3![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 6/1. 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 7/298:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Tue 8/46:10 am
ONT
- ORD
Nonstop4h 15m
United Airlines
Deal found 6/1![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 6/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/12:40 pm
MKE
- ONT
1 stop6h 20m
Southwest
Wed 7/154:35 pm
ONT
- MKE
1 stop5h 20m
Southwest
Deal found 6/3![Southwest logo]()
$395
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:17 pm
MSP
- ONT
1 stop7h 34m
Alaska Airlines
Wed 7/152:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 6/1. 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 6/269:55 am
CWA
- ONT
2 stops10h 26m
American Airlines
Fri 7/37:15 pm
ONT
- CWA
2 stops12h 11m
American Airlines
Deal found 6/1![American Airlines logo]()
$627
This Delta deal was found by Cheapflights users on 6/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:31 am
ATW
- ONT
1 stop7h 11m
Delta
Fri 8/2112:00 pm
ONT
- ATW
1 stop8h 44m
Delta
Deal found 6/2![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Sat 8/88:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Wed 8/121:56 pm
ONT
- ORD
1 stop9h 03m
United Airlines
Deal found 6/2![United Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:45 pm
MSN
- ONT
2 stops8h 04m
Delta
Fri 7/37:05 am
ONT
- MSN
2 stops12h 25m
Delta
Deal found 6/3![Delta logo]()
$350
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:17 pm
MSP
- ONT
1 stop7h 34m
Alaska Airlines
Tue 7/142:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Tue 9/15:00 am
MSN
- ONT
2 stops9h 50m
United Airlines
Sun 9/65:00 am
ONT
- MSN
2 stops8h 09m
United Airlines
Deal found 6/3![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/56:15 am
MSP
- ONT
2 stops8h 15m
Southwest
Wed 8/1211:55 pm
ONT
- MSP
1 stop7h 50m
Southwest
Deal found 6/5![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 6/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/292:40 pm
MKE
- ONT
2 stops7h 40m
Southwest
Wed 8/1910:55 am
ONT
- MKE
2 stops8h 30m
Southwest
Deal found 6/3![Southwest logo]()
$405
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/242:06 pm
ATW
- ONT
2 stops11h 28m
Delta
Sat 8/2912:00 pm
ONT
- ATW
1 stop8h 44m
Delta
Deal found 6/5![Delta logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:03 am
MSP
- ONT
1 stop9h 06m
Alaska Airlines
Wed 7/152:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:40 pm
MKE
- ONT
1 stop5h 55m
Southwest
Mon 8/316:20 am
ONT
- MKE
1 stop6h 05m
Southwest
Deal found 6/4![Southwest logo]()
$410
This United Airlines deal was found by Cheapflights users on 5/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Tue 7/211:50 pm
ONT
- ORD
1 stop9h 09m
United Airlines
Deal found 5/31![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Tue 9/12:50 pm
MSN
- ONT
1 stop8h 03m
United Airlines
Sat 9/57:00 am
ONT
- MSN
1 stop5h 59m
United Airlines
Deal found 6/2![United Airlines logo]()
$431
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:17 pm
MSP
- ONT
1 stop7h 35m
Alaska Airlines
Wed 7/152:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 6/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:25 pm
MKE
- ONT
1 stop5h 45m
Southwest
Wed 8/59:40 am
ONT
- MKE
2 stops8h 15m
Southwest
Deal found 6/1![Southwest logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 6/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:17 pm
MSP
- ONT
1 stop7h 34m
Alaska Airlines
Tue 7/77:00 am
ONT
- MSP
1 stop6h 58m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 6/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:31 am
ATW
- ONT
1 stop7h 11m
Delta
Mon 8/2412:00 pm
ONT
- ATW
1 stop8h 44m
Delta
Deal found 6/2![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Sat 7/118:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Sun 7/196:10 am
ONT
- ORD
Nonstop4h 15m
United Airlines
Deal found 6/2![United Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:25 am
MKE
- ONT
2 stops8h 30m
Southwest
Sun 7/122:35 pm
ONT
- MKE
1 stop8h 30m
Southwest
Deal found 6/2![Southwest logo]()
$441
This American Airlines deal was found by Cheapflights users on 6/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:31 am
CWA
- ONT
2 stops10h 38m
American Airlines
Mon 9/216:15 am
ONT
- CWA
2 stops16h 09m
American Airlines
Deal found 6/2![American Airlines logo]()
$697
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:17 pm
MSP
- ONT
1 stop7h 35m
Alaska Airlines
Tue 7/142:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 6/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2011:30 am
ORD
- ONT
2 stops13h 22m
Delta
Fri 8/710:00 pm
ONT
- ORD
2 stops13h 36m
Delta
Deal found 6/2![Delta logo]()
$488
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Mon 7/278:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Tue 8/41:50 pm
ONT
- ORD
1 stop9h 09m
United Airlines
Deal found 6/3![United Airlines logo]()
$445
This Southwest deal was found by Cheapflights users on 6/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:10 am
MKE
- ONT
2 stops9h 35m
Southwest
Tue 7/75:30 am
ONT
- MKE
2 stops7h 30m
Southwest
Deal found 6/3![Southwest logo]()
$446
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Fri 7/178:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Mon 7/201:18 pm
ONT
- ORD
1 stop7h 31m
United Airlines
Deal found 6/4![United Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/110:00 am
MKE
- ONT
2 stops8h 20m
Southwest
Fri 8/78:30 am
ONT
- MKE
2 stops7h 15m
Southwest
Deal found 6/5![Southwest logo]()
$487
Last-minute flights from Wisconsin to OntarioDiscover last-minute flight deals from Wisconsin to Ontario. Data last updated June 5, 2026 and is based on user searches.
Discover last-minute flight deals from Wisconsin to Ontario. Data last updated June 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:48 pm
ORD
- ONT
1 stop14h 17m
Frontier
Tue 6/303:34 pm
ONT
- ORD
1 stop11h 33m
Frontier
Deal found 6/2![Frontier logo]()
$221
This Booking.com deal was found by Cheapflights users on 5/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:29 pm
ORD
- ONT
1 stop15h 53m
Frontier
Wed 7/83:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 5/31![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Tue 7/79:34 pm
ORD
- ONT
1 stop13h 03m
Frontier
Tue 7/216:00 am
ONT
- ORD
1 stop12h 52m
Frontier
Deal found 6/3![Frontier logo]()
$205
This CheapOair deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:57 pm
ORD
- ONT
1 stop27h 53m
Frontier
Wed 7/153:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/5![Frontier logo]()
$240
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Tue 7/216:00 am
ONT
- MSP
1 stop28h 21m
Frontier
Deal found 6/4![Frontier logo]()
$258
This Mytrip deal was found by Cheapflights users on 6/1. 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.
Tue 7/217:15 am
ORD
- ONT
1 stop9h 59m
Frontier
Tue 8/43:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/1![Frontier logo]()
$235
This CheapOair deal was found by Cheapflights users on 6/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:57 pm
ORD
- ONT
1 stop14h 07m
Frontier
Mon 7/2711:52 am
ONT
- ORD
1 stop15h 45m
Frontier
Deal found 6/1![Frontier logo]()
$234
This Frontier deal was found by Cheapflights users on 6/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:34 pm
ORD
- ONT
1 stop13h 03m
Frontier
Mon 7/279:32 am
ONT
- ORD
1 stop13h 17m
Frontier
Deal found 6/1![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 7/277:15 am
ORD
- ONT
1 stop26h 48m
Frontier
Tue 8/43:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/3![Frontier logo]()
$195
This Frontier deal was found by Cheapflights users on 6/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:15 am
ORD
- ONT
1 stop9h 59m
Frontier
Wed 8/53:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/1![Frontier logo]()
$220
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Wed 7/298:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Wed 8/197:00 am
ONT
- ORD
Nonstop4h 10m
United Airlines
Deal found 6/3![United Airlines logo]()
$239
This Frontier deal was found by Cheapflights users on 6/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:15 am
ORD
- ONT
1 stop10h 39m
Frontier
Thu 8/69:32 am
ONT
- ORD
1 stop13h 17m
Frontier
Deal found 6/1![Frontier logo]()
$238
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 June 5, 2026.
Search for one-way flight options from Wisconsin to Ontario. Find affordable one-way fares based on user searches. Data last updated June 5, 2026.
This Trip.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/510:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/5![Frontier logo]()
$89
This Trip.com deal was found by Cheapflights users on 6/1. 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.
Wed 8/121:16 pm
MSP
- ONT
1 stop12h 34m
Frontier
Deal found 6/1![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Wed 7/2910:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/3![Frontier logo]()
$94
This Trip.com deal was found by Cheapflights users on 6/3. 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.
Wed 8/1910:18 am
MSP
- ONT
1 stop15h 31m
Frontier
Deal found 6/3![Frontier logo]()
$95
This Trip.com deal was found by Cheapflights users on 6/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:18 am
MSP
- ONT
1 stop15h 31m
Frontier
Deal found 6/2![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 9/1510:40 pm
ORD
- ONT
1 stop17h 17m
Frontier
Deal found 6/5![Frontier logo]()
$101
This Trip.com deal was found by Cheapflights users on 6/3. 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.
Mon 8/1010:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/3![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 6/3. 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.
Tue 9/19:48 pm
ORD
- ONT
1 stop14h 17m
Frontier
Deal found 6/3![Frontier logo]()
$108
This Trip.com deal was found by Cheapflights users on 6/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:40 pm
ORD
- ONT
1 stop17h 17m
Frontier
Deal found 6/2![Frontier logo]()
$109
This Trip.com deal was found by Cheapflights users on 6/3. 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.
Mon 8/1710:15 pm
MSP
- ONT
1 stop13h 50m
Frontier
Deal found 6/3![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Tue 9/89:48 pm
ORD
- ONT
1 stop18h 09m
Frontier
Deal found 6/3![Frontier logo]()
$114
This Mytrip deal was found by Cheapflights users on 6/1. 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.
Thu 7/305:46 pm
ORD
- ONT
1 stop15h 46m
Frontier
Deal found 6/1![Frontier logo]()
$115
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 June 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $171 (Kiwi.com) |
One-way from | $89 (Trip.com) |
Popular in | March |
Cheapest in | July |
Average price | $412 |
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 2,558,603 searches. Data last updated June 5, 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
MadisonOntario
MSN - ONT
MSNONT
Madison Truax Field
Sat 11/7
5:45 am-11:27 am
1 stop7h 42m
Ontario
Tue 11/17
10:59 pm-10:15 am
1 stop9h 16m
$331
Quickest round-trip
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Wed 7/29
8:18 pm-10:51 pm
Nonstop4h 33m
Ontario
Tue 8/4
6:10 am-12:25 pm
Nonstop4h 15m
$339
AppletonOntario
ATW - ONT
ATWONT
Appleton Intl
Fri 8/14
5:31 am-10:42 am
1 stop7h 11m
Ontario
Fri 8/21
12:00 pm-10:44 pm
1 stop8h 44m
$349
MadisonOntario
MSN - ONT
MSNONT
Madison Truax Field
Tue 6/30
5:45 pm-11:49 pm
2 stops8h 04m
Ontario
Fri 7/3
7:05 am-9:30 pm
2 stops12h 25m
$350
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Sat 8/8
8:18 pm-10:51 pm
Nonstop4h 33m
Ontario
Wed 8/12
1:56 pm-12:59 am
1 stop9h 03m
$365
MadisonOntario
MSN - ONT
MSNONT
Madison Truax Field
Tue 9/1
5:00 am-12:50 pm
2 stops9h 50m
Ontario
Sun 9/6
5:00 am-3:09 pm
2 stops8h 09m
$365
AppletonOntario
ATW - ONT
ATWONT
Appleton Intl
Mon 8/24
2:06 pm-11:34 pm
2 stops11h 28m
Ontario
Sat 8/29
12:00 pm-10:44 pm
1 stop8h 44m
$389
MilwaukeeOntario
MKE - ONT
MKEONT
Milwaukee-Mitchell
Wed 7/1
2:40 pm-7:00 pm
1 stop6h 20m
Ontario
Wed 7/15
4:35 pm-11:55 pm
1 stop5h 20m
$395
MinneapolisOntario
MSP - ONT
MSPONT
Minneapolis St Paul
Wed 7/8
6:17 pm-11:51 pm
1 stop7h 34m
Ontario
Wed 7/15
2:05 pm-11:59 pm
1 stop7h 54m
$397
MinneapolisOntario
MSP - ONT
MSPONT
Minneapolis St Paul
Wed 7/8
6:17 pm-11:51 pm
1 stop7h 34m
Ontario
Tue 7/14
2:05 pm-11:59 pm
1 stop7h 54m
$397
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.
MSN-ONT
ORD-ONT
MKE-ONT
MSP-ONT
CWA-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
MSN-ONT
ORD-ONT
MKE-ONT
MSP-ONT
What is the cheapest month to book a flight from Wisconsin to Ontario?
Currently, July is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $199). Flying from Wisconsin to Ontario in February is currently the most expensive (average of $340). 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?
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.
Alternative routes
Complete your trip
Flights by cabin class
Ontario flight routes
Other flight options
Popular flights
Top destinations
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 June 5, 2026.
Wisconsin and Ontario flights
Browse other Wisconsin and Ontario flight options. Last updated on June 5, 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 3 airlines flying from Wisconsin to Ontario
Discover the top 3 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 2,558,603 searches. Data last updated June 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$442 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$458 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$316 | Average$467 | FlexibilityNo cancel fee | On-time63% |