ONT - MSN

$127 Find Cheap Flights from Ontario to Madison

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 Madison departing on 8/13. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Madison

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Madison, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Madison, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Ontario to Madison (ONT-MSN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Madison that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Madison

Wed, Oct 1 - Sun, Oct 5
Frontier Logo
8:59 pm - 7:14 pmONT-MSN
20h 15m1 stop
Frontier Logo
7:59 pm - 7:54 pmMSN-ONT
25h 55m1 stop
$235Frontier
Find Deal
Mon, Aug 11 - Fri, Aug 22
Frontier Logo
12:59 am - 6:33 pmONT-MSN
15h 34m1 stop
Frontier Logo
7:59 pm - 11:50 pmMSN-ONT
5h 51m1 stop
$237Frontier
Find Deal
Sat, Aug 23 - Wed, Aug 27
American Airlines Logo
11:59 pm - 10:33 amONT-MSN
8h 34m1 stop
American Airlines Logo
12:41 pm - 9:12 pmMSN-ONT
10h 31m1 stop
$289American Airlines
Find Deal
Sat, Aug 23 - Wed, Aug 27
Delta Logo
11:45 am - 10:48 pmONT-MSN
9h 03m1 stop
Delta Logo
6:05 am - 12:14 pmMSN-ONT
8h 09m2 stops
$294Delta
Find Deal
Sat, Aug 23 - Wed, Aug 27
American Airlines Logo
12:22 pm - 11:59 pmONT-MSN
9h 37m2 stops
American Airlines Logo
6:46 am - 4:24 pmMSN-ONT
11h 38m2 stops
$299American Airlines
Find Deal
Mon, Sep 22 - Mon, Sep 29
Delta Logo
10:00 pm - 9:58 amONT-MSN
9h 58m1 stop
Delta Logo
4:55 pm - 11:42 pmMSN-ONT
8h 47m2 stops
$359Delta
Find Deal
Wed, Sep 3 - Wed, Sep 10
United Airlines Logo
1:15 pm - 10:00 pmONT-MSN
6h 45m1 stop
United Airlines Logo
5:43 pm - 10:30 pmMSN-ONT
6h 47m1 stop
$379United Airlines
Find Deal
Wed, Aug 20 - Tue, Aug 26
United Airlines Logo
5:10 am - 1:12 pmONT-MSN
6h 02m1 stop
United Airlines Logo
6:30 am - 12:32 pmMSN-ONT
8h 02m2 stops
$384United Airlines
Find Deal
Mon, Sep 22 - Wed, Oct 1
Alaska Airlines Logo
7:47 pm - 9:40 amONT-MSN
11h 53m2 stops
Alaska Airlines Logo
5:00 am - 2:12 pmMSN-ONT
11h 12m2 stops
$479Alaska Airlines
Find Deal
Wed, Oct 22 - Sat, Oct 25
Alaska Airlines Logo
7:47 pm - 11:25 amONT-MSN
13h 38m2 stops
Alaska Airlines Logo
2:14 pm - 12:03 amMSN-ONT
11h 49m2 stops
$519Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Madison flights

Get data-powered insights and trends into flights from Ontario to Madison to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Madison?

The average price of all round-trip flights from Ontario to Madison clicked on KAYAK for each day over the last 12 months.

When flying from Ontario to Madison, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Saturdays and the most expensive ones on Thursdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Madison, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Madison is January, where tickets cost $313 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is $508 and $498 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Madison, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Madison, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$127
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Ontario to Madison

When to book flights from Ontario to Madison

Are your dates flexible? Find out the best times to travel from Ontario to Madison based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Madison

  • What is the cheapest flight from Ontario to Madison?

    In the last 3 days, the lowest price for a flight from Ontario to Madison was $127 for a one-way ticket and $235 for a round-trip.

  • Do I need a passport to fly between Ontario and Madison?

    A passport is not required to fly from Ontario to Madison.

  • Which aircraft models fly most regularly from Ontario to Madison?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Madison?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Madison, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Madison, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Madison are United Airlines and American Airlines. With an average price for the route of $495 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $428 and an overall rating of 7.2.

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

    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 Madison.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Madison 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 Madison?

    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 Madison with an airline and back to Ontario with another airline. Booking your flights between Ontario and MSN can sometimes prove cheaper using this method.

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

    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 Madison from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Ontario to Madison

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Madison. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Madison? 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.
7.4
United AirlinesOverall score based on 8900 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

6.0 GoodLeilani, Jul 2025SFO - KOA
Read more United Airlines reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

I didn't like that my paid for seat was changed 2 hours before my flight.

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

Everything you need to know for your flight from Ontario to Madison

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