Cheap flights from Ontario (ONT) to Wisconsin from $63

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 5/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — MKE
May 21 — May 281

How far in advance should I book a flight from Ontario to Wisconsin?

Users have found that booking a flight from Ontario to Wisconsin at least 43 days early can save you up to 117% on average compared to booking a flight this week. If booking 43 days before your flight isn’t an option for you, users have found flights from Ontario to Wisconsin for as little as $295 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $764 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to Wisconsin?

The best pricing can be found in the month of October. Prices to Wisconsin from Ontario average $399. You can even find prices in October for less than $399, as users have found deals to Wisconsin from as low as $123. The month of March appears to be one of the more expensive times to travel to Wisconsin from Ontario. Flying in the targeted month can save you up to 25%.

When is the cheapest time to fly from Ontario to Wisconsin (ONT - WI)?

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

Cheap Frontier flights from Ontario to Wisconsin

Explore cheap flight options specifically provided by Frontier for the route between Ontario and Wisconsin. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from Ontario to Wisconsin. Come back soon if you're not finding the exact deal you're looking for.
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Sat 6/111:08 amMSP - ONT
1 stop6h 54mFrontier
Deal found 5/14$135
Tue 5/2812:59 amONT - MSP
1 stop6h 38mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/14$136
Tue 8/2712:49 amONT - ORD
1 stop22h 14mFrontier
Tue 9/38:00 amORD - ONT
1 stop17h 39mFrontier
Deal found 5/14$137
Tue 8/2012:00 pmONT - ORD
1 stop14h 47mFrontier
Sat 8/247:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/16$138
Tue 5/2812:59 amONT - ORD
1 stop22h 14mFrontier
Wed 6/58:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/15$139
Tue 8/2012:00 pmONT - ORD
1 stop14h 47mFrontier
Sun 8/257:30 pmORD - ONT
1 stop15h 36mFrontier
Deal found 5/16$140
Fri 5/3112:59 amONT - ORD
1 stop21h 19mFrontier
Tue 6/47:59 pmORD - ONT
1 stop23h 49mFrontier
Deal found 5/15$141
Tue 8/205:30 pmONT - ORD
1 stop9h 17mFrontier
Thu 8/227:30 pmORD - ONT
1 stop15h 36mFrontier
Deal found 5/14$142
Mon 8/198:35 pmONT - ORD
1 stop6h 12mFrontier
Sat 8/245:56 pmORD - ONT
1 stop7h 48mFrontier
Deal found 5/16$143

Cheap Delta flights from Ontario to Wisconsin

Explore cheap flight options specifically provided by Delta for the route between Ontario and Wisconsin. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a gander at the lowest prices we've found on Delta flights from Ontario to Wisconsin. Deals are refreshing constantly so come back soon for more options.
Tue 9/1710:59 pmONT - MSN
1 stop9h 14mDelta
Sat 9/212:30 pmMSN - ONT
1 stop9h 58mDelta
Deal found 5/15$276
Tue 8/1312:45 pmONT - ATW
1 stop7h 04mDelta
Thu 8/225:53 amATW - ONT
1 stop7h 17mDelta
Deal found 5/15$282
Fri 5/311:20 pmONT - ORD
1 stop6h 12mDelta
Sat 6/81:25 pmORD - ONT
2 stops11h 35mDelta
Deal found 5/15$284
Fri 5/3110:00 pmONT - ORD
2 stops8h 59mDelta
Sat 6/81:25 pmORD - ONT
2 stops11h 35mDelta
Deal found 5/15$289
Wed 5/226:50 amONT - ORD
1 stop10h 51mDelta
Wed 5/2911:45 amORD - ONT
2 stops10h 21mDelta
Deal found 5/15$295
Wed 8/76:00 amONT - MSP
1 stop6h 31mDelta
Wed 8/78:15 pmMSP - ONT
1 stop5h 29mDelta
Deal found 5/15$302
Tue 8/1312:45 pmONT - ATW
1 stop7h 04mDelta
Sun 8/185:53 amATW - ONT
1 stop7h 17mDelta
Deal found 5/15$307
Thu 7/1111:20 amONT - GRB
1 stop10h 17mDelta
Tue 7/235:10 amGRB - ONT
1 stop7h 00mDelta
Deal found 5/16$313
Thu 5/231:20 pmONT - ORD
1 stop6h 12mDelta
Sun 5/265:15 pmORD - ONT
1 stop6h 24mDelta
Deal found 5/16$322

Cheap Ontario to Wisconsin flights in May & June 2024

Find cheap flight options from Ontario to Wisconsin specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Check out some of the best flight deals from Ontario to Wisconsin in 2024. Check back regularly for other flight deals.
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Sat 6/111:08 amMSP - ONT
1 stop6h 54mFrontier
Deal found 5/14$135
Tue 5/2812:59 amONT - MSP
1 stop6h 38mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/14$136
Mon 5/2712:59 amONT - MSP
1 stop5h 47mFrontier
Tue 6/410:59 pmMSP - ONT
1 stop10h 03mFrontier
Deal found 5/14$137
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/14$138
Tue 5/2112:59 amONT - MSP
1 stop18h 28mFrontier
Wed 5/2910:27 amMSP - ONT
1 stop15h 32mFrontier
Deal found 5/15$139
Tue 5/2812:59 amONT - ORD
1 stop22h 14mFrontier
Wed 6/58:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/15$139
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/16$140
Sat 5/255:41 pmONT - ORD
1 stop9h 19mFrontier
Wed 5/296:45 pmORD - ONT
1 stop7h 14mFrontier
Deal found 5/16$140
Sat 6/810:59 pmONT - MSP
1 stop9h 05mFrontier
Wed 6/1210:59 pmMSP - ONT
1 stop27h 00mFrontier
Deal found 5/15$141

Ontario to Wisconsin 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Wisconsin in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the best flight deals from Ontario to Wisconsin in 2024. Check back regularly for other flight deals.
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Sat 6/111:08 amMSP - ONT
1 stop6h 54mFrontier
Deal found 5/14$135
Tue 5/2812:59 amONT - MSP
1 stop6h 38mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/14$136
Mon 5/2712:59 amONT - MSP
1 stop5h 47mFrontier
Tue 6/410:59 pmMSP - ONT
1 stop10h 03mFrontier
Deal found 5/14$137
Tue 8/2712:49 amONT - ORD
1 stop22h 14mFrontier
Tue 9/38:00 amORD - ONT
1 stop17h 39mFrontier
Deal found 5/14$137
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/14$138
Tue 8/2012:00 pmONT - ORD
1 stop14h 47mFrontier
Sat 8/247:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/16$138
Tue 5/2112:59 amONT - MSP
1 stop18h 28mFrontier
Wed 5/2910:27 amMSP - ONT
1 stop15h 32mFrontier
Deal found 5/15$139
Tue 5/2812:59 amONT - ORD
1 stop22h 14mFrontier
Wed 6/58:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/15$139
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/16$140

Ontario to Wisconsin flights leaving soon

Find last-minute flight options from Ontario to Wisconsin for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users seeking a last-minute flight from Ontario to Wisconsin should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Tue 5/2812:59 amONT - MSP
1 stop6h 38mFrontier
Wed 6/510:59 pmMSP - ONT
1 stop26h 45mFrontier
Deal found 5/14$136
Mon 5/2712:59 amONT - MSP
1 stop5h 47mFrontier
Tue 6/410:59 pmMSP - ONT
1 stop10h 03mFrontier
Deal found 5/14$137
Tue 5/2112:59 amONT - MSP
1 stop18h 28mFrontier
Wed 5/2910:27 amMSP - ONT
1 stop15h 32mFrontier
Deal found 5/15$139
Tue 5/2112:59 amONT - ORD
1 stop22h 14mFrontier
Wed 5/296:45 pmORD - ONT
1 stop7h 14mFrontier
Deal found 5/15$139
Mon 5/2712:59 amONT - MSP
1 stop5h 47mFrontier
Sat 6/111:08 amMSP - ONT
1 stop6h 54mFrontier
Deal found 5/14$140
Sat 5/255:41 pmONT - ORD
1 stop9h 19mFrontier
Wed 5/296:45 pmORD - ONT
1 stop7h 14mFrontier
Deal found 5/16$140
Fri 5/2412:59 amONT - ORD
1 stop21h 19mFrontier
Wed 5/297:59 pmORD - ONT
1 stop15h 35mFrontier
Deal found 5/16$141
Sat 5/255:41 pmONT - ORD
1 stop9h 19mFrontier
Tue 5/287:59 pmORD - ONT
1 stop15h 05mFrontier
Deal found 5/15$142
Mon 5/2712:59 amONT - MSP
1 stop5h 47mFrontier
Wed 5/2910:27 amMSP - ONT
1 stop15h 32mFrontier
Deal found 5/15$143

One-way flights to Wisconsin from Ontario

Search for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users traveling one-way from Ontario to Wisconsin can select one of these great deals. Users needing a return flight from Ontario to Wisconsin should utilize the search form above.
Fri 5/3112:59 amONT - MSP
1 stop19h 46mFrontier
Deal found 5/15$63
Tue 5/2112:59 amONT - ORD
1 stop22h 14mFrontier
Deal found 5/15$63
Fri 5/3112:59 amONT - MSP
1 stop5h 47mFrontier
Deal found 5/15$70
Tue 5/2812:59 amONT - MKE
1 stop5h 45mFrontier
Deal found 5/15$70
Wed 8/288:35 pmONT - ORD
1 stop6h 12mFrontier
Deal found 5/15$70
Wed 6/58:55 pmONT - ORD
1 stop6h 28mFrontier
Deal found 5/15$71
Tue 5/2810:42 pmONT - ORD
1 stop28h 18mFrontier
Deal found 5/15$73
Mon 6/1012:59 amONT - MSP
1 stop5h 02mFrontier
Deal found 5/16$74
Tue 6/48:29 pmONT - ORD
1 stop6h 31mFrontier
Deal found 5/15$74

Find flights from Ontario to Wisconsin within your budget

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$135 - $397

Route

Depart

Return

Price

OntarioMinneapolis St Paul

ONT - MSP

ONTMSP

Ontario

Fri 5/31

1 stop5h 47m

Minneapolis St Paul

Sat 6/1

1 stop6h 54m

$135

OntarioMinneapolis St Paul

ONT - MSP

ONTMSP

Ontario

Tue 5/28

1 stop6h 38m

Minneapolis St Paul

Wed 6/5

1 stop26h 45m

$136

OntarioMinneapolis St Paul

ONT - MSP

ONTMSP

Ontario

Mon 5/27

1 stop5h 47m

Minneapolis St Paul

Tue 6/4

1 stop10h 03m

$137

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Tue 8/27

1 stop22h 14m

Chicago O'Hare Intl

Tue 9/3

1 stop17h 39m

$137

OntarioMinneapolis St Paul

ONT - MSP

ONTMSP

Ontario

Fri 5/31

1 stop5h 47m

Minneapolis St Paul

Wed 6/5

1 stop26h 45m

$138

OntarioMadison Truax Field

ONT - MSN

ONTMSN

Ontario

Tue 9/17

1 stop9h 14m

Madison Truax Field

Sat 9/21

1 stop9h 58m

$276

OntarioMinneapolis St Paul

ONT - MSP

ONTMSP

Ontario

Thu 10/10

1 stop6h 51m

Minneapolis St Paul

Tue 10/15

1 stop8h 50m

$311

OntarioMadison Truax Field

ONT - MSN

ONTMSN

Ontario

Mon 7/1

1 stop8h 53m

Madison Truax Field

Sat 7/6

1 stop7h 06m

$349

OntarioMadison Truax Field

ONT - MSN

ONTMSN

Ontario

Tue 6/11

1 stop6h 53m

Madison Truax Field

Tue 6/18

1 stop7h 43m

$397

Flights are sorted by cheapest first

Deals found on 5/14

No data available for this route at this time. Please check back soon.

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 May 16, 2024.
Read reviews from past customers who have flown Frontier, Delta and American Airlines from Ontario to Wisconsin. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,040 reviews

Overall

8.2

Comfort

8.1

Entertainment

7.8

Food

7.3

Crew

8.7

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
6,040 reviews
Southwest
8.2
Very good
6,040 reviews

Overall

8.2

Comfort

8.1

Entertainment

7.8

Food

7.3

Crew

8.7

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.1
Very good
9,157 reviews
Southwest
8.2
Very good
6,040 reviews

Overall

8.2

Comfort

8.1

Entertainment

7.8

Food

7.3

Crew

8.7

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

8.0
Very good
10,673 reviews
Southwest
8.2
Very good
6,040 reviews

Overall

8.2

Comfort

8.1

Entertainment

7.8

Food

7.3

Crew

8.7

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.6
Good
4,472 reviews
Southwest
8.2
Very good
6,040 reviews

Overall

8.2

Comfort

8.1

Entertainment

7.8

Food

7.3

Crew

8.7

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

7.5
Good
2,919 reviews
Southwest
8.2
Very good
6,040 reviews

Overall

8.2

Comfort

8.1

Entertainment

7.8

Food

7.3

Crew

8.7

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

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

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Wisconsin.

  • Can I find flights from Ontario to Wisconsin for under $200 on Cheapflights?

    Yes, there are multiple flights from Ontario to Wisconsin for under $200. The cheapest flight booked recently is on Frontier for just $135, but on average you can expect to pay $140.

  • Are there last-minute flights available from Ontario to Wisconsin for under $200?

    There are currently 20+ open flights from Ontario to Wisconsin within the next 7 days for less than $200.

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

  • What are the most popular airlines that fly from Ontario to Wisconsin?

  • What does ONT to MKE mean?

    ONT and MKE are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to MKE refers to a flight route from Ontario Airport to Milwaukee-Mitchell Airport. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Madison Truax Field Airport (MSN), Appleton Intl Airport (ATW), Green Bay Austin-Straubel Airport (GRB), Wausau Central Wisconsin Airport (CWA), La Crosse Airport (LSE).

  • Can I find deals for flights from Ontario to Wisconsin that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Wisconsin flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Wisconsin with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Wisconsin flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Ontario to Wisconsin that allow pets onboard?

    Many airlines flying from Ontario to Wisconsin offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Wisconsin?

    Yes, you can often find last-minute deals on Ontario to Wisconsin flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Wisconsin flight deals updated?

    The Ontario to Wisconsin flight deals you see on this page were last updated on 5/16.

See more FAQs

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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.

Top 5 airlines flying from Ontario to Wisconsin

Discover the top 5 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$232FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$185Average$303FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$263Average$621FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$280Average$492FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$298Average$558FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Wisconsin?

When you search for this flight from Ontario to Wisconsin, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Wisconsin?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Wisconsin for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Wisconsin with no change fees?

Need flexible booking options for your flight to Wisconsin from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Wisconsin become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to Wisconsin on Cheapflights with our Price Alert feature and get notified when better prices are available.

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