How many flights depart from Wisconsin to Ontario on average per week?

As of July 2026, 11 flights take off from Wisconsin and land in Ontario each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

What airlines fly to Ontario?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Ontario from Wisconsin according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Wisconsin to Ontario?

Delta, Southwest, and Alaska Airlines are the most popular carriers operating from Wisconsin to Ontario

How long does it take to fly to Ontario?

Average flight duration from Wisconsin to Ontario depends on which airport you fly into and out of. Flying from Madison to Los Angeles is 4h 17m on average, while flying from Wausau to Los Angeles is 5h 40m on average. Los Angeles is the most popular airport in Ontario.

When did momondo last update prices for flights from Wisconsin to Ontario Airport?

Prices for flights from Wisconsin to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Wisconsin to Ontario Airport?

The number of operators available for flights from Wisconsin to Ontario Airport is 6 as of July 2026.

How old do you have to be to fly from Wisconsin to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wisconsin to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$97 Cheap Flights from Wisconsin to Ontario in 2026

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Find the cheapest flights from Wisconsin to Los Angeles

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 am - 4:10 pm

ORD

ONT

11h 20m

1 stop

2:58 pm - 5:42 am

ONT

ORD

12h 44m

1 stop

$203Frontier

Sat, Sep 12 - Mon, Sep 14

8:11 pm - 3:54 pm

ORD

ONT

21h 43m

1 stop

8:48 am - 6:17 am

ONT

ORD

19h 29m

2 stops

$207Frontier

Mon, Aug 24 - Mon, Aug 31

5:00 am - 9:29 am

ORD

ONT

6h 29m

1 stop

2:22 pm - 11:30 pm

ONT

ORD

7h 08m

1 stop

$243American Airlines

Wed, Sep 16 - Tue, Sep 22

5:00 am - 9:34 am

ORD

ONT

6h 34m

1 stop

6:15 am - 4:05 pm

ONT

ORD

7h 50m

1 stop

$244American Airlines

Sat, Aug 22 - Sat, Aug 29

8:06 pm - 10:35 pm

ORD

ONT

4h 29mnonstop

7:13 pm - 7:16 am

ONT

ORD

10h 03m

1 stop

$249United Airlines

Mon, Aug 24 - Mon, Aug 31

2:05 pm - 6:55 pm

MKE

ONT

6h 50m

1 stop

7:05 am - 4:20 pm

ONT

MKE

7h 15m

1 stop

$262Southwest

Wed, Aug 19 - Sat, Aug 22

6:40 am - 12:40 pm

MKE

ONT

8h 00m

2 stops

7:05 am - 4:20 pm

ONT

MKE

7h 15m

1 stop

$267Southwest

Wed, Aug 19 - Sat, Aug 22

12:45 pm - 6:43 pm

MKE

ONT

7h 58m

1 stop

1:04 pm - 9:11 pm

ONT

MKE

6h 07m

1 stop

$277Delta

Sat, Sep 19 - Thu, Oct 1

3:01 pm - 9:52 pm

MKE

ONT

8h 51m

1 stop

1:06 pm - 9:41 pm

ONT

MKE

6h 35m

1 stop

$304Delta

Fri, Aug 21 - Tue, Aug 25

12:30 pm - 10:59 pm

GRB

ONT

12h 29m

2 stops

7:13 pm - 9:59 am

ONT

GRB

12h 46m

2 stops

$459United Airlines

Thu, Aug 27 - Sun, Aug 30

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Frontier flights from Wisconsin to Ontario

Our best Frontier deals on Wisconsin to Ontario flight tickets

Frontier

Sep 12

ORD6:50 amChicago O'Hare Intl

11h 20m

1 stop

ONT4:10 pmOntario

Sep 14

ONT2:58 pmOntario

12h 44m

1 stop

ORD5:42 amChicago O'Hare Intl

$203

Frontier

Oct 2

ORD1:02 pmChicago O'Hare Intl

29h 08m

1 stop

ONT4:10 pmOntario

Oct 7

ONT2:58 pmOntario

12h 44m

1 stop

ORD5:42 amChicago O'Hare Intl

$227

Frontier

Sep 12

ORD11:06 amChicago O'Hare Intl

14h 49m

1 stop

ONT11:55 pmOntario

Sep 15

ONT2:58 pmOntario

12h 44m

1 stop

ORD5:42 amChicago O'Hare Intl

$229

Southwest flights from Wisconsin to Ontario

Our best Southwest deals on Wisconsin to Ontario flight tickets

Southwest

Aug 19

MKE2:05 pmMilwaukee-Mitchell

6h 50m

1 stop

ONT6:55 pmOntario

Aug 22

ONT7:05 amOntario

7h 15m

1 stop

MKE4:20 pmMilwaukee-Mitchell

$262

Southwest

Aug 19

MKE6:40 amMilwaukee-Mitchell

8h 00m

2 stops

ONT12:40 pmOntario

Aug 22

ONT7:05 amOntario

7h 15m

1 stop

MKE4:20 pmMilwaukee-Mitchell

$267

Southwest

Oct 8

MKE5:30 amMilwaukee-Mitchell

6h 25m

1 stop

ONT9:55 amOntario

Oct 12

ONT1:30 pmOntario

8h 35m

1 stop

MKE12:05 amMilwaukee-Mitchell

$268

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 9/12

6:50 am-4:10 pm

1 stop11h 20m

Ontario

Mon 9/14

2:58 pm-5:42 am

1 stop12h 44m

$203

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 8/24

8:11 pm-3:54 pm

1 stop21h 43m

Ontario

Mon 8/31

8:48 am-6:17 am

2 stops19h 29m

$207

Quickest round-trip

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 9/16

5:00 am-9:29 am

1 stop6h 29m

Ontario

Tue 9/22

2:22 pm-11:30 pm

1 stop7h 08m

$243

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 8/22

5:00 am-9:34 am

1 stop6h 34m

Ontario

Sat 8/29

6:15 am-4:05 pm

1 stop7h 50m

$244

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 8/24

8:06 pm-10:35 pm

Nonstop4h 29m

Ontario

Mon 8/31

7:13 pm-7:16 am

1 stop10h 03m

$249

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 8/19

2:05 pm-6:55 pm

1 stop6h 50m

Ontario

Sat 8/22

7:05 am-4:20 pm

1 stop7h 15m

$262

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 8/19

6:40 am-12:40 pm

2 stops8h 00m

Ontario

Sat 8/22

7:05 am-4:20 pm

1 stop7h 15m

$267

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Sat 9/19

12:45 pm-6:43 pm

1 stop7h 58m

Ontario

Thu 10/1

1:04 pm-9:11 pm

1 stop6h 07m

$277

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Fri 8/21

3:01 pm-9:52 pm

1 stop8h 51m

Ontario

Tue 8/25

1:06 pm-9:41 pm

1 stop6h 35m

$304

Green BayOntario

GRB - ONT

GRBONT

Green Bay Austin-Straubel

Thu 8/27

12:30 pm-10:59 pm

2 stops12h 29m

Ontario

Sun 8/30

7:13 pm-9:59 am

2 stops12h 46m

$459

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Wisconsin to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

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What is the cheapest month to fly to Ontario?

In general, July is the cheapest month to fly from Wisconsin to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $232. If you aren’t able to travel during the month of July, then book flights to Ontario from Wisconsin during October instead. Flights to Ontario in October, while not as cheap as those in July, still average around $267.

Can stopping save me money on Wisconsin to Ontario flights?

You could potentially save up to 9% on your flight if you consider stops on a Wisconsin to Ontario flight.

Cheap Wisconsin to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Wisconsin to Ontario

Fastest flight time	4h 29m
Direct flights	Every day
Airports in Ontario	1 airport

The fastest flight from Wisconsin to Ontario takes 4h 29m

Direct flights go from Wisconsin to Ontario every day.

There is 1 airport in Ontario. From Wisconsin there are direct flights to Ontario (ONT).

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Frequently asked questions about flying from Wisconsin to Ontario

When did momondo last update prices for flights from Wisconsin to Ontario Airport?
Prices for flights from Wisconsin to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Wisconsin to Ontario Airport?
The number of operators available for flights from Wisconsin to Ontario Airport is 6 as of July 2026.
How old do you have to be to fly from Wisconsin to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wisconsin to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Wisconsin to Ontario

Compare and see reviews for airlines that fly from Wisconsin to Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 9,976 reviews	Search United Airlines flights
Southwest	PriceFrom $316	Free Cancellation	Rating 7.9 4,248 reviews	Search Southwest flights
American Airlines	PriceFrom $323	Free Cancellation	Rating 7.1 11,806 reviews	Search American Airlines flights
Delta	PriceFrom $396	Free Cancellation	Rating 7.8 8,457 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Wisconsin to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Wisconsin to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Wisconsin to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Wisconsin on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Wisconsin to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Wisconsin to Ontario.

I’m not ready to book a flight from Wisconsin to Ontario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Wisconsin and alert you when they change.

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Cheap flights from Wisconsin to Los Angeles from $97

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Wisconsin to Los Angeles departing on 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Wisconsin to Ontario

What is the cheapest month to fly to Ontario?

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What is the cheapest airline that flies from Wisconsin to Ontario?

What airlines fly to Ontario?

How many flights depart from Wisconsin to Ontario on average per week?

How long does it take to fly to Ontario?

Cheap Wisconsin to Ontario flight deals and tips

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Frequently asked questions about flying from Wisconsin to Ontario

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Compare and see reviews for airlines that fly from Wisconsin to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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