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$146+ Cheap flights from Ontario to Madison (ONT - MSN)

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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSN
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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Cheap flight deals from Ontario to Madison

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Madison (MSN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 7, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$280
(Frontier)

One-way from

$146
(Frontier)

Popular in

May

Cheapest in

January

Average price

$278
Provider with most accurate pricing for Ontario-Madison Truax Field flight deals.
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Provider most trusted by Cheapflights users for Ontario-Madison Truax Field flights.
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From Ontario to Madison Truax Field
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One-way flight from Ontario to Madison Truax Field
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Highest demand for flights based on searches. 11% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Ontario to Madison

Cheapest flights from Ontario to Madison
Explore the most affordable flight options available from Ontario to Madison. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.

This American Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/76:27 amONT - MSN
1 stop5h 59mAmerican Airlines
Sat 2/1411:22 amMSN - ONT
1 stop6h 57mAmerican Airlines
Deal found 1/6$309
This American Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:35 pmONT - MSN
2 stops12h 00mAmerican Airlines
Tue 5/1211:33 amMSN - ONT
1 stop10h 54mAmerican Airlines
Deal found 1/6$314
This American Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/612:57 pmONT - MSN
1 stop6h 24mAmerican Airlines
Wed 2/111:51 pmMSN - ONT
1 stop6h 29mAmerican Airlines
Deal found 1/7$335
This Frontier deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:15 amONT - MSN
1 stop10h 56mFrontier
Sun 3/157:56 pmMSN - ONT
1 stop6h 05mFrontier
Deal found 1/6$340
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:24 pmONT - MSN
1 stop5h 56mUnited Airlines
Sun 2/88:15 amMSN - ONT
1 stop6h 32mUnited Airlines
Deal found 1/7$395
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:24 pmONT - MSN
1 stop5h 56mUnited Airlines
Wed 2/1112:32 pmMSN - ONT
2 stops10h 26mUnited Airlines
Deal found 1/7$404
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:05 amONT - MSN
2 stops12h 02mUnited Airlines
Sun 2/1512:57 pmMSN - ONT
2 stops12h 00mUnited Airlines
Deal found 1/7$410
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:10 amONT - MSN
1 stop7h 28mUnited Airlines
Tue 4/144:15 pmMSN - ONT
1 stop6h 21mUnited Airlines
Deal found 1/7$424
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/225:05 amONT - MSN
1 stop7h 33mUnited Airlines
Mon 1/264:20 pmMSN - ONT
1 stop6h 38mUnited Airlines
Deal found 1/7$449

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Madison 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 2,558,603 searches. Data last updated January 7, 2026.
Use the filters below to find and compare flights from Ontario to Madison that are best for you.

Fly from

Ontario

Fly to

Madison

Route

Depart

Return

Price

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 5/8

7:35 pm-9:35 am

2 stops12h 00m

Madison Truax Field

Tue 5/12

11:33 am-8:27 pm

1 stop10h 54m

$314

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 2/6

1:24 pm-9:20 pm

1 stop5h 56m

Madison Truax Field

Sun 2/8

8:15 am-12:47 pm

1 stop6h 32m

$395

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 2/11

1:24 pm-9:20 pm

1 stop5h 56m

Madison Truax Field

Sun 2/15

2:48 pm-10:57 pm

2 stops10h 09m

$404

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 2/6

1:24 pm-9:20 pm

1 stop5h 56m

Madison Truax Field

Wed 2/11

12:32 pm-8:58 pm

2 stops10h 26m

$404

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 1/22

5:05 am-2:38 pm

1 stop7h 33m

Madison Truax Field

Sun 1/25

2:56 pm-10:53 pm

2 stops9h 57m

$454

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 1/22

5:05 am-2:38 pm

1 stop7h 33m

Madison Truax Field

Mon 1/26

12:32 pm-8:58 pm

2 stops10h 26m

$454

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 4/9

5:10 am-2:38 pm

1 stop7h 28m

Madison Truax Field

Tue 4/14

9:00 am-12:38 pm

1 stop5h 38m

$469

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 5/8

6:54 pm-8:36 am

2 stops11h 42m

Madison Truax Field

Tue 5/12

5:00 am-10:52 pm

3 stops19h 52m

$490

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Mon 3/23

6:15 am-7:11 pm

1 stop10h 56m

$146

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Tue 2/10

10:30 pm-10:51 am

2 stops10h 21m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 19 results
1
2

Compare providers for flights from Ontario to Madison

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Madison in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Madison flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Madison flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Madison flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Madison flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Madison flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Madison

Have a flexible travel schedule? Discover the best time to fly to Madison from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Ontario to Madison?

Currently, May is the cheapest month in which you can book a flight from Ontario to Madison (average of $99). Flying from Ontario to Madison in January is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Madison

Get insights into the airlines that provide service to Madison. 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 Madison. Reviews last updated January 7, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Ontario to Madison by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,139 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,139 reviews
United Airlines
7.4
Good
9,139 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,095 reviews
United Airlines
7.4
Good
9,139 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Madison. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Madison?

    American Airlines and United Airlines can get you from Ontario to Madison in just under 5h 56m. Your travel time can differ by up to 6h 04m. Airlines will cover a distance of 1639 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ontario to Madison round-trip?

    American Airlines, at $288, was found to be the cheapest airline from Ontario to Madison. An alternate airline flying to your destination would be United Airlines. You may be able to fly from Ontario to Madison for 33% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Ontario to Madison one-way?

    The cheapest airlines for a one-way flight from Ontario to Madison are Frontier ($79), American Airlines ($114), and United Airlines ($209).

  • Can I find deals for flights from Ontario to Madison that include hotel bookings?

    Yes. In addition to deals on Ontario to Madison flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Madison?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Madison.

  • Can I find deals for business class flights from Ontario to Madison?

    Yes. Cheapflights offers flight deals from Ontario to Madison by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Madison?

    Currently, May is the cheapest month in which you can book a flight from Ontario to Madison (average of $99). Flying from Ontario to Madison in January is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Madison?

Book flights to Madison if you plan to visit one of these locations
Portage
Middleton
Baraboo
Fitchburg

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Top 2 airlines flying from Ontario to Madison

Discover the top 2 airlines that operate flights from Ontario to Madison. 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 2,558,603 searches. Data last updated January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$496FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$433FlexibilityNo cancel feeOn-time71%

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