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Madison

$106+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSN
May 3 — May 101
Sun 5/3
Sun 5/10
1 adult, Economy
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Cheap 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 April 3, 2026.

This Frontier deal was found by Cheapflights users on 4/1. 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.
Sun 5/246:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Sat 5/307:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 4/1$185
This Frontier deal was found by Cheapflights users on 4/1. 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.
Sun 5/246:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Thu 5/287:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 4/1$205
This Frontier deal was found by Cheapflights users on 4/1. 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 5/216:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Sat 5/307:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 4/1$210
This Frontier deal was found by Cheapflights users on 4/1. 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 5/216:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Thu 5/287:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 4/1$230
This Orbitz deal was found by Cheapflights users on 4/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:59 am
ONT
-
MSN
1 stop10h 53m
Frontier
Sun 4/262:37 pm
MSN
-
ONT
1 stop18h 54m
Frontier
Deal found 4/1$250
This Frontier deal was found by Cheapflights users on 3/31. 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.
Sun 6/76:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Tue 6/167:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 3/31$270
This Frontier deal was found by Cheapflights users on 4/1. 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.
Sun 5/246:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Sun 5/317:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 4/1$281
This Frontier deal was found by Cheapflights users on 4/3. 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.
Sat 4/1812:59 am
ONT
-
MSN
1 stop10h 53m
Frontier
Sun 4/262:37 pm
MSN
-
ONT
1 stop11h 18m
Frontier
Deal found 4/3$301
This Frontier deal was found by Cheapflights users on 4/1. 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 5/216:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Sun 5/317:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 4/1$306
This American Airlines deal was found by Cheapflights users on 4/3. 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.
Wed 5/2012:19 pm
ONT
-
MSN
1 stop6h 51m
American Airlines
Wed 5/278:00 am
MSN
-
ONT
1 stop6h 05m
American Airlines
Deal found 4/3$311
This United Airlines deal was found by Cheapflights users on 3/30. 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 9/11:18 pm
ONT
-
MSN
1 stop5h 47m
United Airlines
Thu 9/245:30 pm
MSN
-
ONT
1 stop6h 56m
United Airlines
Deal found 3/30$312

Find 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 April 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$185
(Frontier)

One-way from

$132
(Frontier)

Popular in

May

Cheapest in

January

Average price

$413
Provider with most accurate pricing for Ontario-Madison Truax Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Madison Truax Field flights.
Search Deals
From Ontario to Madison Truax Field
Search Deals
One-way flight from Ontario to Madison Truax Field
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 3, 2026.
Use the filters below to find and compare flights from Ontario to Madison that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 5/20

5:50 pm-8:26 am

2 stops12h 36m

Madison Truax Field

Wed 5/27

6:29 pm-11:34 pm

2 stops7h 05m

$301

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Tue 9/1

1:18 pm-12:04 am

2 stops8h 46m

Madison Truax Field

Thu 9/24

5:30 pm-10:26 pm

1 stop6h 56m

$317

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 5/1

12:49 pm-10:27 pm

1 stop7h 38m

Madison Truax Field

Tue 5/5

9:41 am-9:00 pm

2 stops13h 19m

$317

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 6/12

1:00 pm-11:02 pm

2 stops8h 02m

Madison Truax Field

Mon 6/15

6:19 pm-11:45 pm

2 stops7h 26m

$343

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 6/11

5:59 pm-8:22 am

2 stops12h 23m

Madison Truax Field

Sat 6/13

6:00 am-12:10 pm

2 stops8h 10m

$414

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 6/12

1:00 pm-11:02 pm

2 stops8h 02m

Madison Truax Field

Sat 6/13

6:00 am-12:10 pm

2 stops8h 10m

$414
Quickest round-trip

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 4/29

5:10 am-2:38 pm

1 stop7h 28m

Madison Truax Field

Sat 5/2

3:33 pm-8:36 pm

1 stop7h 03m

$455

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 6/12

1:00 pm-11:02 pm

2 stops8h 02m

Madison Truax Field

Sun 6/14

6:19 pm-11:45 pm

2 stops7h 26m

$499

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Tue 4/28

1:27 pm-8:56 am

2 stops17h 29m

Madison Truax Field

Sat 5/2

6:30 am-5:52 pm

2 stops13h 22m

$501
Cheapest one-way

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 4/18

12:59 am-1:52 pm

1 stop10h 53m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

Showing 1-10 of 20 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Madison flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $96). 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.

How much does it cost to fly round-trip from Ontario to Madison?

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 April 3, 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
9,539 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
9,539 reviews
United Airlines
7.4
Good
9,539 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
7.1
Good
11,555 reviews
United Airlines
7.4
Good
9,539 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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?

    Delta and United Airlines can get you from Ontario to Madison in just under 7h 38m. Your travel time can differ by up to 1h 08m. 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 37% 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, May is the cheapest month in which you can book a flight from Ontario to Madison (average of $96). 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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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 April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$466FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$313Average$508FlexibilityNo cancel feeOn-time69%

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