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$55+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ONT
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Wisconsin to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Wisconsin (USWI) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$110
(Frontier)

One-way from

$55
(Frontier)
From Wisconsin to Ontario
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One-way flight from Wisconsin to Ontario
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Find flight deals from Wisconsin to Ontario

Cheapest flights from Wisconsin to Ontario
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 January 21, 2025.

This Frontier deal was found by Cheapflights users on 1/21. 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 5/136:00 amMSP - ONT
1 stop7h 26mFrontier
Sat 5/1712:16 pmONT - MSP
1 stop10h 17mFrontier
Deal found 1/21$110
This Mytrip deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/243:18 pmMKE - ONT
1 stop10h 41mFrontier
Wed 4/3012:10 pmONT - MKE
1 stop24h 18mFrontier
Deal found 1/19$115
This Justfly.com deal was found by Cheapflights users on 1/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/276:20 amORD - ONT
1 stop16h 26mFrontier
Wed 1/2912:34 pmONT - ORD
1 stop26h 51mFrontier
Deal found 1/20$171
This Trip.com deal was found by Cheapflights users on 1/20. 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.
Tue 3/186:00 amMSP - ONT
1 stop19h 59mMultiple Airlines
Wed 4/212:59 amONT - MSP
1 stop18h 52mMultiple Airlines
Deal found 1/20$185
This Frontier deal was found by Cheapflights users on 1/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/62:04 pmMSN - ONT
1 stop12h 05mFrontier
Wed 3/1212:59 amONT - MSN
1 stop10h 05mFrontier
Deal found 1/20$220
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:00 amORD - ONT
1 stop8h 27mAmerican Airlines
Sun 8/248:01 pmONT - ORD
1 stop7h 27mAmerican Airlines
Deal found 1/21$247
This Delta deal was found by Cheapflights users on 1/20. 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.
Sat 3/85:00 pmORD - ONT
1 stop8h 26mDelta
Thu 3/131:30 pmONT - ORD
1 stop6h 15mDelta
Deal found 1/20$257
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/187:00 amMSP - ONT
1 stop29h 39mAlaska Airlines
Tue 3/256:00 amONT - MSP
1 stop15h 59mAlaska Airlines
Deal found 1/20$282
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 2/166:20 amMSN - ONT
1 stop9h 40mAmerican Airlines
Tue 2/256:05 amONT - MSN
1 stop8h 31mAmerican Airlines
Deal found 1/20$289
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Sat 6/216:30 amORD - ONT
1 stop8h 04mUnited Airlines
Sat 6/281:00 pmONT - ORD
1 stop7h 25mUnited Airlines
Deal found 1/21$296
This Delta deal was found by Cheapflights users on 1/20. 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.
Sat 2/152:57 pmMSN - ONT
2 stops10h 29mDelta
Mon 2/245:10 pmONT - MSN
2 stops15h 13mDelta
Deal found 1/20$299
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/96:40 pmGRB - ONT
2 stops16h 19mAmerican Airlines
Wed 4/167:00 amONT - GRB
2 stops9h 10mAmerican Airlines
Deal found 1/21$312

Find flights from Wisconsin to Ontario within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Thu 5/15

8:25 pm-11:59 pm

1 stop5h 34m

Ontario

Mon 5/19

12:16 pm-12:33 am

1 stop10h 17m

$110

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Tue 2/25

10:32 am-11:59 pm

1 stop15h 27m

Ontario

Wed 2/26

12:59 am-9:32 am

1 stop6h 33m

$120

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sun 2/2

6:36 pm-7:11 am

1 stop14h 35m

Ontario

Fri 2/7

10:40 am-12:32 am

1 stop11h 52m

$172

MinneapolisOntario

MSP - ONT

MSPONT

Minneapolis St Paul

Tue 3/18

6:00 am-11:59 pm

1 stop19h 59m

Ontario

Wed 4/2

12:59 am-9:51 pm

1 stop18h 52m

$185

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Thu 3/6

2:04 pm-12:09 am

1 stop12h 05m

Ontario

Wed 3/12

12:59 am-1:04 pm

1 stop10h 05m

$220

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 3/8

5:13 pm-10:52 pm

1 stop7h 39m

Ontario

Wed 3/12

11:42 am-11:53 pm

1 stop10h 11m

$257

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Fri 4/18

3:16 pm-11:59 pm

1 stop10h 43m

Ontario

Tue 4/22

11:46 am-11:59 pm

1 stop10h 13m

$267

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sun 2/16

6:20 am-2:00 pm

1 stop9h 40m

Ontario

Tue 2/25

6:05 am-4:36 pm

1 stop8h 31m

$289

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 6/21

6:30 am-12:34 pm

1 stop8h 04m

Ontario

Sat 6/28

1:00 pm-10:25 pm

1 stop7h 25m

$296

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sat 2/15

2:57 pm-11:26 pm

2 stops10h 29m

Ontario

Mon 2/24

5:10 pm-10:23 am

2 stops15h 13m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 58 results
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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.
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.

Travel insights for flights from Wisconsin to Ontario

Get recent, data-driven insights about flights from Wisconsin to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Wisconsin to Ontario?

Currently, August is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $246). Flying from Wisconsin to Ontario in March is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WI to ONT?

Find hourly flight availability from Wisconsin to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Wisconsin to Ontario as you normally would.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated January 21, 2025.
To help decide which airline to fly from Wisconsin to Ontario, see what other customers have to say about Delta, United Airlines and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

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.

  • What airport do you fly into for flights to Ontario from Wisconsin?

    If you book a flight to Ontario from Wisconsin, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • What are the cheapest airlines to fly from Wisconsin to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $55. Users have also found prices from $129 and $144 on Delta and Alaska Airlines, respectively.

  • What are the most popular routes from Wisconsin to Ontario?

    When deciding which route to take from Wisconsin to Ontario consider Chicago O'Hare Intl - Ontario, Minneapolis St Paul - Ontario or Milwaukee-Mitchell - Ontario as they are the most popular.

  • Can I find deals for flights from Wisconsin to Ontario that include hotel bookings?

    Yes. In addition to deals on Wisconsin to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Wisconsin to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Wisconsin to Ontario.

  • Can I find deals for business class flights from Wisconsin to Ontario?

    Yes. Cheapflights offers flight deals from Wisconsin to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Wisconsin to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Wisconsin to Ontario (average of $246). Flying from Wisconsin to Ontario in March is currently the most expensive (average of $311). 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.

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Alternative routes for Wisconsin to Ontario

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Top 5 airlines flying from Wisconsin to Ontario

Discover the top 5 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$216FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$238Average$420FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$313Average$535FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$326Average$426FlexibilityNo cancel feeOn-time63%
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