Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Ontario to Wisconsin from $70

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Wisconsin departing on 6/4. 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.
1 adult
0 bags
Sun 6/2
Sun 6/9

Search hundreds of travel sites at once for deals on flights to Wisconsin

In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Wisconsin Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Milwaukee
Milwaukee1 stop$138
Madison
Madison1 stop$168
Appleton
Appleton2 stops$322
Green Bay
Green Bay1 stop$160
Wausau
Wausau2 stops$778
La Crosse
La Crosse2 stops$787
Minneapolis
Minneapolis1 stop$138
Chicago
Chicago1 stop$137
Duluth
Duluth2 stops$598

Good to know

Low season

February

High season

September

Cheapest flight

$70
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 47% lower on average.
Flight from Ontario to Milwaukee

FAQs - booking Wisconsin flights

  • How does KAYAK find such low prices on flights from Ontario to Wisconsin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Wisconsin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Wisconsin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Wisconsin from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Wisconsin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Wisconsin with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Wisconsin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Wisconsin from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Wisconsin

  • Morning departure is around 5% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Ontario to Wisconsin

 
Need help choosing which airline to fly with from Ontario to Wisconsin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
China AirlinesOverall score based on 945 reviews
8.0Comfort
7.8Food
8.3Boarding
8.1Entertainment
8.6Crew
Airline reviews

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

8.0 ExcellentMichell, Feb 2024TPE - LAX
Read more about China Airlines reviews

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

The plane was uncomfortable. I paid extra for more legroom but the seat was still uncomfortable. Other seats on the same exact row didn’t have to pay extra but still have extra legroom. I didn’t understand why I needed to pay $170 for. It was Iike China airline just wants to make money off their passengers. It was unfair.

Great flight, although I flew out of ONT and that is where my car is, lol

Ask flight attendant for water during flight and she was a little rude get the water.

Baggage made it successfully to destination despite short layover. Appreciate that.

Staff were good and nice. There should me 3 meals instead of only 2 and snacks.

Excellent staff made the boarding process fast and easy. Friendly crews on both flights from Saigon to Taipei and Taipei to Los Angeles. Will fly China Airlines again.

For a long-haul flight, the crew did a very good job of keeping the lavatories clean and the aisles clear.

The plane was an older model and the entertainment was hard to enjoy on those small screens. I struggled to see clear anything I wanted to watch. The seats where a bit uncomfortable but for a 3 hours flight it was pretty ok. The rest of services were excellent. Highly recommend China Airlines to others.

The check-in crew at SF did not put on breakable glass stickers on check-in baggages which caused my antique whisky bottle to break during transportation.

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Had assistance at airport getting from arrivals gate to departure gate; I couldn't have managed without that extra help. Thank you Delta.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

Flight From PHX to CVG was on time, very professional staff

Flight was delayed and missed connecting flight. Did not give warning about delay until we showed up at the airport. Not good.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

Book cheap flights from Ontario to Wisconsin

Recent round-trip flight deals

5/28Tue
1 stopFrontier
5h 45mONT-MKE
6/5Wed
1 stopFrontier
16h 15mMKE-ONT
$138
5/31Fri
1 stopFrontier
5h 35mONT-MKE
6/8Sat
1 stopFrontier
16h 28mMKE-ONT
$146
8/15Thu
1 stopFrontier
27h 35mONT-MKE
8/17Sat
1 stopFrontier
16h 08mMKE-ONT
$154
5/30Thu
1 stopAmerican Airlines
6h 07mONT-MSN
6/3Mon
1 stopAmerican Airlines
8h 07mMSN-ONT
$239
5/30Thu
2 stopsAmerican Airlines
8h 27mONT-MSN
6/3Mon
1 stopAmerican Airlines
8h 07mMSN-ONT
$244
9/17Tue
1 stopDelta
9h 14mONT-MSN
9/21Sat
1 stopDelta
7h 27mMSN-ONT
$276
6/1Sat
1 stopDelta
7h 35mONT-GRB
6/8Sat
2 stopsDelta
10h 41mGRB-ONT
$292
5/25Sat
1 stopUnited Airlines
6h 53mONT-MSN
5/30Thu
1 stopUnited Airlines
7h 43mMSN-ONT
$304
8/24Sat
1 stopUnited Airlines
7h 13mONT-MSN
8/25Sun
1 stopUnited Airlines
7h 49mMSN-ONT
$426
6/1Sat
1 stopJetBlue
9h 37mONT-MKE
6/8Sat
1 stopJetBlue
12h 01mMKE-ONT
$462

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/4Tue
1 stopFrontier
5h 44mONT-MKE
$70
5/12Sun
1 stopFrontier
10h 50mONT-MKE
$79
8/14Wed
1 stopFrontier
21h 56mONT-MSN
$81
6/4Tue
1 stopDelta
6h 39mONT-MKE
$204
5/15Wed
1 stopDelta
6h 38mONT-MKE
$211
6/3Mon
1 stopAmerican Airlines
6h 35mONT-MKE
$224
5/20Mon
1 stopJetBlue
9h 10mONT-MKE
$231
5/8Wed
2 stopsAmerican Airlines
14h 01mONT-ATW
$249
8/14Wed
1 stopUnited Airlines
6h 39mONT-MKE
$249
6/29Sat
2 stopsUnited Airlines
13h 55mONT-MKE
$289

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Wisconsin

Last minute flight, train and bus deals

5/5Sun
multi-stopFrontier
10h 50mONT-MKE
5/13Mon
multi-stopFrontier
11h 09mMKE-ONT
$254
5/5Sun
multi-stopFrontier
10h 50mONT-MKE
5/17Fri
multi-stopFrontier
6h 07mMKE-ONT
$258
5/6Mon
multi-stopAmerican Airlines
8h 27mONT-MSN
5/18Sat
multi-stopAmerican Airlines
8h 31mMSN-ONT
$382
5/7Tue
multi-stopAmerican Airlines
10h 12mONT-ATW
5/11Sat
multi-stopAmerican Airlines
13h 04mATW-ONT
$397
5/7Tue
multi-stopDelta
7h 30mONT-ATW
5/11Sat
multi-stopDelta
11h 39mATW-ONT
$414
5/7Tue
multi-stopDelta
9h 39mONT-MSN
5/11Sat
multi-stopDelta
15h 06mMSN-ONT
$454
5/8Wed
multi-stopUnited Airlines
5h 17mONT-MSN
5/18Sat
multi-stopUnited Airlines
7h 28mMSN-ONT
$516
5/8Wed
multi-stopUnited Airlines
5h 54mONT-MSN
5/14Tue
multi-stopUnited Airlines
6h 05mMSN-ONT
$556
5/4Sat
multi-stopAlaska Airlines
12h 30mONT-MSN
5/11Sat
multi-stopAlaska Airlines
15h 58mMSN-ONT
$829
5/6Mon
multi-stopAlaska Airlines
18h 37mONT-MKE
5/10Fri
multi-stopAlaska Airlines
33h 16mMKE-ONT
$987

Search by stops

Search by airline

Search by price

Ontario - Wisconsin Flights

Departure:

Ontario (ONT)United States

Return flight deals:

Wisconsin - Ontario

Cabin classes: