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Madison

$154+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSN
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$255
(Frontier)

One-way from

$154
(Frontier)

Popular in

July

Cheapest in

January

Average price

$473
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. 5% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 16, 2025.

This Frontier deal was found by Cheapflights users on 9/15. 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.
Thu 10/306:53 amONT - MSN
1 stop10h 22mFrontier
Mon 11/38:00 pmMSN - ONT
1 stop5h 50mFrontier
Deal found 9/15$255
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/58:59 pmONT - MSN
1 stop20h 15mFrontier
Fri 10/107:59 pmMSN - ONT
1 stop29h 51mFrontier
Deal found 9/15$265
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:59 pmONT - MSN
1 stop20h 15mFrontier
Fri 10/107:59 pmMSN - ONT
1 stop29h 51mFrontier
Deal found 9/15$282
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:00 amONT - MSN
2 stops23h 08mMultiple Airlines
Fri 10/107:59 pmMSN - ONT
1 stop29h 51mMultiple Airlines
Deal found 9/15$288
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/71:15 pmONT - MSN
1 stop5h 47mUnited Airlines
Sat 10/1110:51 amMSN - ONT
1 stop9h 15mUnited Airlines
Deal found 9/15$289
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:00 amONT - MSN
2 stops11h 14mFrontier
Mon 10/67:59 pmMSN - ONT
1 stop29h 51mFrontier
Deal found 9/14$298
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:53 amONT - MSN
1 stop10h 21mFrontier
Fri 10/107:59 pmMSN - ONT
1 stop29h 51mFrontier
Deal found 9/15$327
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/111:36 amONT - MSN
1 stop9h 09mDelta
Sat 11/81:25 pmMSN - ONT
1 stop7h 54mDelta
Deal found 9/14$340

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 September 16, 2025.
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

Tue 10/7

9:36 am-10:28 pm

2 stops10h 52m

Madison Truax Field

Sat 10/11

12:26 pm-6:06 pm

1 stop7h 40m

$294

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 11/1

11:36 am-10:45 pm

1 stop9h 09m

Madison Truax Field

Sat 11/8

1:25 pm-7:19 pm

1 stop7h 54m

$340

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 11/7

7:00 am-5:50 pm

1 stop8h 50m

Madison Truax Field

Sun 11/9

5:33 pm-10:31 pm

1 stop6h 58m

$354

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 10/17

5:50 pm-10:18 am

2 stops14h 28m

Madison Truax Field

Tue 10/21

6:00 am-12:14 pm

2 stops8h 14m

$364

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 10/8

5:05 am-1:18 pm

1 stop6h 13m

Madison Truax Field

Sat 10/11

10:51 am-6:06 pm

1 stop9h 15m

$379

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 11/5

5:05 am-1:15 pm

1 stop6h 10m

Madison Truax Field

Sat 11/8

3:58 pm-10:31 pm

1 stop8h 33m

$379

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 10/22

5:05 am-1:18 pm

1 stop6h 13m

Madison Truax Field

Sat 10/25

12:26 pm-6:06 pm

1 stop7h 40m

$379

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 10/4

1:15 pm-10:34 pm

2 stops7h 19m

Madison Truax Field

Sat 10/11

10:58 am-9:20 pm

2 stops12h 22m

$389

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 10/4

7:02 am-3:07 pm

1 stop6h 05m

Madison Truax Field

Sat 10/11

12:26 pm-6:06 pm

1 stop7h 40m

$404

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Tue 9/30

5:05 am-1:18 pm

1 stop6h 13m

Madison Truax Field

Sat 10/4

4:30 pm-8:24 pm

1 stop5h 54m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 16 results
1
2

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, January is the cheapest month in which you can book a flight from Ontario to Madison (average of $338). Flying from Ontario to Madison in March is currently the most expensive (average of $422). 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.

What is the cheapest time of day to fly from ONT to MSN?

Find hourly flight availability from Ontario to Madison. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 15% on flights from Ontario to Madison by exploring options for tickets in the afternoon.

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 September 16, 2025.
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
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

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?

    United Airlines and Delta can get you from Ontario to Madison in just under 9h 09m. Your travel time can differ by up to 1h 43m. 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 32% less than the average price by searching for these airlines.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Madison (average of $338). Flying from Ontario to Madison in March is currently the most expensive (average of $422). 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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Alternative routes for Ontario to Madison

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$488FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$440FlexibilityNo cancel feeOn-time71%

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