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Cheap flights from Ontario (ONT) to Wisconsin from $70

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 5 — May 121
From?
To?
Sun 5/5
Sun 5/12
1 adult, Economy
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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 22 days early can save you up to 104% on average compared to booking a flight this week. If booking 22 days before your flight isn’t an option for you, users have found flights from Ontario to Wisconsin for as little as $417 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 $634 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 February. Prices to Wisconsin from Ontario average $402. You can even find prices in February for less than $402, as users have found deals to Wisconsin from as low as $93. The month of April 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 22%.

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 2,913,887 searches. Data last updated April 30, 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 - MKE
1 stop5h 35mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 08mFrontier
Deal found 4/30$138
Tue 5/212:25 pmONT - MKE
1 stop16h 19mFrontier
Sat 5/259:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 4/29$158
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 4/30$159
Tue 5/2112:59 amONT - MKE
1 stop5h 45mFrontier
Sat 6/19:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 4/29$164
Tue 5/2112:59 amONT - MKE
1 stop5h 45mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 08mFrontier
Deal found 4/29$165
Thu 5/1612:59 amONT - GRB
1 stop16h 19mFrontier
Mon 5/209:26 pmGRB - ONT
1 stop17h 58mFrontier
Deal found 4/30$173
Tue 5/2812:59 amONT - MKE
1 stop5h 45mFrontier
Mon 6/39:34 amMKE - ONT
1 stop8h 11mFrontier
Deal found 4/29$176
Fri 5/3112:59 amONT - MSN
1 stop11h 52mFrontier
Thu 6/69:02 pmMSN - ONT
1 stop11h 27mFrontier
Deal found 4/29$178
Fri 8/212:49 amONT - MKE
1 stop5h 57mFrontier
Wed 8/149:36 amMKE - ONT
1 stop12h 01mFrontier
Deal found 4/29$180

Cheap Alaska Airlines flights from Ontario to Wisconsin

Explore cheap flight options specifically provided by Alaska Airlines 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 2,913,887 searches. Data last updated April 30, 2024.
Take a gander at the lowest prices we've found on Alaska Airlines flights from Ontario to Wisconsin. Deals are refreshing constantly so come back soon for more options.
Wed 5/226:00 amONT - MKE
1 stop15h 59mAlaska Airlines
Tue 6/42:33 pmMKE - ONT
1 stop11h 25mAlaska Airlines
Deal found 4/30$402
Wed 5/298:09 pmONT - MKE
1 stop15h 24mAlaska Airlines
Wed 6/52:33 pmMKE - ONT
1 stop11h 25mAlaska Airlines
Deal found 4/29$412
Tue 5/286:00 amONT - MKE
1 stop15h 59mAlaska Airlines
Tue 6/42:33 pmMKE - ONT
1 stop11h 25mAlaska Airlines
Deal found 4/29$422
Thu 5/236:00 amONT - MKE
1 stop15h 59mAlaska Airlines
Tue 6/42:33 pmMKE - ONT
1 stop11h 25mAlaska Airlines
Deal found 4/29$432
Mon 5/208:09 pmONT - MKE
1 stop25h 50mAlaska Airlines
Wed 5/227:00 amMKE - ONT
1 stop10h 26mAlaska Airlines
Deal found 4/29$444
Mon 5/136:00 amONT - MSN
2 stops13h 00mAlaska Airlines
Sat 5/256:30 amMSN - ONT
2 stops10h 56mAlaska Airlines
Deal found 4/29$618
Tue 5/146:00 amONT - MSN
2 stops12h 00mAlaska Airlines
Sat 5/2511:45 amMSN - ONT
2 stops10h 40mAlaska Airlines
Deal found 4/29$803
Mon 5/67:59 pmONT - MKE
1 stop15h 38mAlaska Airlines
Thu 5/91:24 pmMKE - ONT
2 stops12h 35mAlaska Airlines
Deal found 4/29$850
Fri 5/107:59 pmONT - MKE
1 stop15h 38mAlaska Airlines
Sun 5/125:02 amMKE - ONT
2 stops12h 46mAlaska Airlines
Deal found 4/30$865

Cheap Ontario to Wisconsin flights in April & May 2024

Find cheap flight options from Ontario to Wisconsin specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,913,887 searches. Prices were last updated on April 30, 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 - MKE
1 stop5h 35mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 08mFrontier
Deal found 4/30$138
Tue 5/212:25 pmONT - MKE
1 stop16h 19mFrontier
Sat 5/259:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 4/29$158
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop13h 42mFrontier
Deal found 4/30$159
Tue 5/2112:59 amONT - MKE
1 stop5h 45mFrontier
Sat 6/19:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 4/29$164
Tue 5/2112:59 amONT - MKE
1 stop5h 45mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 08mFrontier
Deal found 4/29$165
Fri 5/3112:59 amONT - MSN
1 stop11h 52mFrontier
Fri 6/79:05 pmMSN - ONT
1 stop18h 34mFrontier
Deal found 4/30$166
Thu 5/1612:59 amONT - GRB
1 stop16h 19mFrontier
Mon 5/209:26 pmGRB - ONT
1 stop17h 58mFrontier
Deal found 4/30$173
Tue 5/2812:59 amONT - MKE
1 stop5h 45mFrontier
Mon 6/39:34 amMKE - ONT
1 stop8h 11mFrontier
Deal found 4/29$176
Fri 5/3112:59 amONT - MSN
1 stop11h 52mFrontier
Thu 6/69:02 pmMSN - ONT
1 stop11h 27mFrontier
Deal found 4/29$178

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 2,913,887 searches. Data last updated April 30, 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 - MKE
1 stop5h 35mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 08mFrontier
Deal found 4/30$138
Tue 5/212:25 pmONT - MKE
1 stop16h 19mFrontier
Sat 5/259:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 4/29$158
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop13h 42mFrontier
Deal found 4/30$159
Tue 5/2112:59 amONT - MKE
1 stop5h 45mFrontier
Sat 6/19:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 4/29$164
Tue 5/2112:59 amONT - MKE
1 stop5h 45mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 08mFrontier
Deal found 4/29$165
Fri 5/3112:59 amONT - MSN
1 stop11h 52mFrontier
Fri 6/79:05 pmMSN - ONT
1 stop18h 34mFrontier
Deal found 4/30$166
Thu 5/1612:59 amONT - GRB
1 stop16h 19mFrontier
Mon 5/209:26 pmGRB - ONT
1 stop17h 58mFrontier
Deal found 4/30$173
Tue 5/2812:59 amONT - MKE
1 stop5h 45mFrontier
Mon 6/39:34 amMKE - ONT
1 stop8h 11mFrontier
Deal found 4/29$176
Fri 5/3112:59 amONT - MSN
1 stop11h 52mFrontier
Thu 6/69:02 pmMSN - ONT
1 stop11h 27mFrontier
Deal found 4/29$178

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 2,913,887 searches. Data last updated April 30, 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.
Sun 5/1212:59 amONT - MSN
1 stop12h 27mFrontier
Sat 5/253:51 pmMSN - ONT
1 stop10h 08mFrontier
Deal found 4/29$208
Thu 5/212:56 amONT - MSN
1 stop17h 14mFrontier
Fri 5/174:32 pmMSN - ONT
1 stop9h 27mFrontier
Deal found 4/29$235
Thu 5/912:56 amONT - MSN
1 stop17h 14mFrontier
Sat 5/114:57 pmMSN - ONT
1 stop9h 02mFrontier
Deal found 4/29$250
Thu 5/212:56 amONT - MSN
1 stop17h 14mFrontier
Mon 5/64:26 pmMSN - ONT
1 stop16h 00mFrontier
Deal found 4/29$255
Sun 5/512:59 amONT - MSN
1 stop12h 27mFrontier
Mon 5/134:26 pmMSN - ONT
1 stop9h 33mFrontier
Deal found 4/29$258
Wed 5/812:59 amONT - MSN
1 stop12h 19mFrontier
Sun 5/124:38 pmMSN - ONT
1 stop9h 21mFrontier
Deal found 4/30$268
Thu 5/912:56 amONT - MSN
1 stop17h 14mFrontier
Mon 5/134:26 pmMSN - ONT
1 stop16h 00mFrontier
Deal found 4/29$269
Thu 5/912:56 amONT - MSN
1 stop17h 14mFrontier
Sat 5/114:57 pmMSN - ONT
1 stop15h 34mFrontier
Deal found 4/30$271
Fri 5/107:16 amONT - MSN
1 stop10h 54mFrontier
Sat 5/114:57 pmMSN - ONT
1 stop9h 02mFrontier
Deal found 4/30$277

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 2,913,887 searches. Data last updated April 30, 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 - MKE
1 stop5h 35mFrontier
Deal found 4/30$70
Fri 5/1712:59 amONT - MSN
1 stop11h 33mFrontier
Deal found 4/30$76
Thu 5/912:56 amONT - MKE
1 stop12h 39mFrontier
Deal found 4/30$79
Wed 6/128:03 amONT - MSN
1 stop5h 23mFrontier
Deal found 4/29$80
Tue 6/1112:59 amONT - MKE
1 stop5h 45mFrontier
Deal found 4/29$80
Tue 5/712:59 amONT - MKE
1 stop7h 57mFrontier
Deal found 4/30$85
Tue 6/1112:59 amONT - MSN
1 stop12h 27mFrontier
Deal found 4/29$86
Thu 5/912:56 amONT - MKE
1 stop12h 39mFrontier
Deal found 4/29$86
Thu 5/912:56 amONT - MKE
1 stop12h 39mFrontier
Deal found 4/30$91

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 2,913,887 searches. Data last updated April 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$138 - $402

Route

Depart

Return

Price

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 5/31

1 stop5h 35m

Milwaukee-Mitchell

Wed 6/5

1 stop16h 08m

$138

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Tue 5/21

1 stop16h 19m

Milwaukee-Mitchell

Sat 5/25

1 stop16h 25m

$158

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Tue 5/14

1 stop7h 57m

Milwaukee-Mitchell

Fri 5/17

1 stop6h 07m

$159

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Tue 5/21

1 stop5h 45m

Milwaukee-Mitchell

Sat 6/1

1 stop16h 25m

$164

OntarioAppleton Intl

ONT - ATW

ONTATW

Ontario

Wed 8/21

2 stops8h 46m

Appleton Intl

Tue 8/27

1 stop5h 47m

$265

OntarioMadison Truax Field

ONT - MSN

ONTMSN

Ontario

Tue 9/17

1 stop9h 14m

Madison Truax Field

Sat 9/21

1 stop7h 27m

$276

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Tue 5/21

1 stop5h 45m

Milwaukee-Mitchell

Sun 5/26

1 stop10h 26m

$299

OntarioMadison Truax Field

ONT - MSN

ONTMSN

Ontario

Thu 5/30

2 stops8h 27m

Madison Truax Field

Sun 6/2

1 stop8h 07m

$301

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Wed 5/22

1 stop15h 59m

Milwaukee-Mitchell

Tue 6/4

1 stop11h 25m

$402

Flights are sorted by cheapest first

Deals found on 4/30

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 April 30, 2024.
Read reviews from past customers who have flown Frontier, Alaska Airlines and United 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.
Alaska Airlines
8.1
Very good
9,111 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,111 reviews
Alaska Airlines
8.1
Very good
9,111 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,895 reviews
Alaska Airlines
8.1
Very good
9,111 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

JetBlue
7.6
Good
4,562 reviews
Alaska Airlines
8.1
Very good
9,111 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,187 reviews
Alaska Airlines
8.1
Very good
9,111 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,815 reviews
Alaska Airlines
8.1
Very good
9,111 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

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 $138, but on average you can expect to pay $181.

  • Are there last-minute flights available from Ontario to Wisconsin for under $300?

    There are currently 20+ open flights from Ontario to Wisconsin within the next 7 days for less than $300.

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

    The most popular flight routes from Ontario to Wisconsin are Ontario - Madison Truax Field, Ontario - Milwaukee-Mitchell and Ontario - Green Bay Austin-Straubel.

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

    The most popular airlines flying from Ontario to Wisconsin are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

  • 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 4/30.

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.

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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 2,913,887 searches. Data last updated April 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$229FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$185Average$303FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$278Average$591FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$298Average$680FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$298Average$569FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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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.
First Class
Business Class
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Fly with Cheapflights

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

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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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