MSN - ONT

$170 Find Cheap Flights from Madison to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Madison to Ontario departing on 10/2. 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 Ontario

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

Cheap Flights from Madison to Ontario (MSN-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Madison to Ontario 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 Madison to Ontario

Fri, Nov 14 - Sun, Nov 16
Frontier Logo
8:00 pm - 11:50 pmMSN-ONT
5h 50m1 stop
Frontier Logo
10:50 pm - 7:15 pmONT-MSN
18h 25m2 stops
$257Frontier
Find Deal
Thu, Oct 23 - Mon, Oct 27
Frontier Logo
7:59 pm - 11:50 pmMSN-ONT
5h 51m1 stop
Frontier Logo
6:53 am - 7:14 pmONT-MSN
10h 21m1 stop
$267Frontier
Find Deal
Fri, Nov 14 - Sun, Nov 16
Frontier Logo
8:00 pm - 11:50 pmMSN-ONT
5h 50m1 stop
Frontier Logo
6:53 am - 7:15 pmONT-MSN
10h 22m1 stop
$271Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
American Airlines Logo
12:50 pm - 9:24 pmMSN-ONT
10h 34m1 stop
American Airlines Logo
11:59 pm - 10:37 amONT-MSN
8h 38m1 stop
$314American Airlines
Find Deal
Fri, Sep 26 - Sun, Sep 28
Frontier Logo
7:59 pm - 7:54 pmMSN-ONT
25h 55m1 stop
Frontier Logo
4:09 pm - 7:14 pmONT-MSN
25h 05m2 stops
$340Frontier
Find Deal
Sat, Oct 11 - Tue, Oct 14
American Airlines Logo
6:45 am - 11:57 amMSN-ONT
7h 12m1 stop
American Airlines Logo
6:15 am - 2:00 pmONT-MSN
5h 45m1 stop
$354American Airlines
Find Deal
Sat, Oct 11 - Tue, Oct 14
Delta Logo
10:58 am - 9:20 pmMSN-ONT
12h 22m2 stops
Delta Logo
5:50 pm - 8:37 amONT-MSN
12h 47m2 stops
$364Delta
Find Deal
Sat, Feb 14 - Sat, Feb 21
United Airlines Logo
4:23 pm - 9:19 pmMSN-ONT
6h 56m1 stop
United Airlines Logo
1:00 pm - 8:53 pmONT-MSN
5h 53m1 stop
$374United Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
United Airlines Logo
2:51 pm - 8:24 pmMSN-ONT
7h 33m1 stop
United Airlines Logo
5:05 am - 1:18 pmONT-MSN
6h 13m1 stop
$404United Airlines
Find Deal
Sat, Sep 27 - Sun, Oct 5
Delta Logo
9:27 am - 7:15 pmMSN-ONT
11h 48m2 stops
Delta Logo
10:00 pm - 8:40 amONT-MSN
8h 40m2 stops
$511Delta
Find Deal

Everything you should know

Top airlines
Frontier
Cheapest • from $257 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 26% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$257
Overall average: $338
Frontier
Fri 11/14Sun 11/16
MSN - ONT • 1 stop
Cheapest one-way
$170
Typical prices: $116-211
Frontier
Thu 10/2
MSN - ONT • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Booking Insights

KAYAK's insights & trends for Madison to Ontario flights

Get data-powered insights and trends into flights from Madison to Ontario 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 Madison to Ontario?

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

If your flying dates are flexible, you should consider flying to Ontario on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Madison to Ontario. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Madison to Ontario, 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 Madison to Ontario is March, where tickets cost $316 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is $608 and $493 respectively.

Good to know

Low seasonAugust
Cheapest flight$170
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Madison to Ontario

When to book flights from Madison to Ontario

Are your dates flexible? Find out the best times to travel from Madison to Ontario 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 Madison to Ontario

  • What is the cheapest flight from Madison to Ontario?

    In the last 3 days, the lowest price for a flight from Madison to Ontario was $170 for a one-way ticket and $257 for a round-trip.

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

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

  • Which airports will I be using when flying from Madison to Ontario?

    When flying out of Madison you will be using Madison Truax Field. You will be landing at Ontario, also known as Ontario.

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

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

  • Which airline alliances offer flights from Madison to Ontario?

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

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

    The two airlines most popular with KAYAK users for flights from Madison to Ontario are United Airlines and American Airlines. With an average price for the route of $486 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 $462 and an overall rating of 7.2.

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

    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 Madison to Ontario.

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

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

    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 Ontario with an airline and back to Madison with another airline. Booking your flights between Madison and ONT 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 Madison to Ontario?

    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 Ontario from Madison 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 Madison to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Madison to Ontario. 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 Madison to Ontario? 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 8929 reviews
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

The flight was comfortable with the exit row and great service

10.0 ExcellentMark, Aug 2025HNL - LAX
Read more United Airlines reviews

The flight was comfortable with the exit row and great service

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

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.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

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.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

Finally a Frontier on time and efficient. I've had problems before with your airline, but this time everything went fine.

The experience was good. No frills but I got there safe and sound and on time.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

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

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

Information on your arrival and departure airports

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