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Madison

$126+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSN
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
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 July 30, 2026.

This Frontier deal was found by Cheapflights users on 7/29. 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 9/36:00 am
ONT
-
MSN
1 stop11h 10m
Frontier
Sun 9/67:55 pm
MSN
-
ONT
1 stop5h 55m
Frontier
Deal found 7/29$240
This Frontier deal was found by Cheapflights users on 7/27. 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 9/176:15 am
ONT
-
MSN
1 stop11h 00m
Frontier
Sun 9/208:00 pm
MSN
-
ONT
1 stop5h 47m
Frontier
Deal found 7/27$252
This Frontier deal was found by Cheapflights users on 7/27. 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.
Tue 8/410:49 am
ONT
-
MSN
1 stop6h 21m
Frontier
Thu 8/207:55 pm
MSN
-
ONT
1 stop5h 55m
Frontier
Deal found 7/27$259
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:49 am
ONT
-
MSN
1 stop6h 21m
Frontier
Thu 9/37:55 pm
MSN
-
ONT
1 stop5h 55m
Frontier
Deal found 7/30$261
This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:56 pm
ONT
-
MSN
1 stop21h 14m
Frontier
Thu 9/37:55 pm
MSN
-
ONT
1 stop16h 09m
Frontier
Deal found 7/29$269
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:00 am
ONT
-
MSN
1 stop10h 47m
Frontier
Mon 10/127:54 pm
MSN
-
ONT
1 stop6h 01m
Frontier
Deal found 7/30$283
This Frontier deal was found by Cheapflights users on 7/28. 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 8/276:00 am
ONT
-
MSN
1 stop11h 10m
Frontier
Sun 9/67:55 pm
MSN
-
ONT
1 stop5h 55m
Frontier
Deal found 7/28$285
This Travelocity deal was found by Cheapflights users on 7/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:55 pm
ONT
-
MSN
1 stop25h 52m
Frontier
Mon 10/127:54 pm
MSN
-
ONT
1 stop16h 49m
Frontier
Deal found 7/30$292
This Frontier deal was found by Cheapflights users on 7/29. 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 8/206:00 am
ONT
-
MSN
1 stop11h 10m
Frontier
Thu 8/277:55 pm
MSN
-
ONT
1 stop5h 55m
Frontier
Deal found 7/29$311
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:55 pm
ONT
-
MSN
1 stop25h 52m
Frontier
Wed 10/147:54 pm
MSN
-
ONT
1 stop16h 49m
Frontier
Deal found 7/28$319
This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:55 pm
ONT
-
MSN
1 stop25h 52m
Frontier
Mon 10/267:54 pm
MSN
-
ONT
1 stop6h 01m
Frontier
Deal found 7/29$333

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 July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(Frontier)

One-way from

$126
(Frontier)

Popular in

March

Cheapest in

January

Average price

$575
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. 26% potential increase in price ($191 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 30, 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

Tue 11/3

1:29 pm-8:43 pm

1 stop5h 14m

Madison Truax Field

Sat 11/7

10:46 am-8:51 pm

2 stops12h 05m

$346

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 9/17

6:00 pm-8:22 am

2 stops12h 22m

Madison Truax Field

Mon 9/21

5:05 pm-10:24 pm

1 stop7h 19m

$414

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 9/12

1:18 pm-8:39 pm

1 stop5h 21m

Madison Truax Field

Tue 9/29

8:50 am-5:41 pm

2 stops10h 51m

$446

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 11/14

5:00 am-2:06 pm

1 stop7h 06m

Madison Truax Field

Wed 11/18

12:32 pm-8:51 pm

2 stops10h 19m

$446

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 8/26

5:00 am-6:56 pm

2 stops11h 56m

Madison Truax Field

Sat 9/5

2:23 pm-8:53 pm

2 stops8h 30m

$480

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 8/14

1:18 pm-11:59 pm

1 stop8h 41m

Madison Truax Field

Fri 8/28

2:50 pm-8:53 pm

1 stop8h 03m

$494

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 8/14

1:18 pm-11:59 pm

1 stop8h 41m

Madison Truax Field

Tue 8/18

8:10 am-8:01 pm

2 stops13h 51m

$499

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Tue 10/13

5:00 am-1:18 pm

1 stop6h 18m

Madison Truax Field

Tue 10/20

8:50 am-8:31 pm

2 stops13h 41m

$510

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 8/27

7:13 pm-11:58 am

2 stops14h 45m

Madison Truax Field

Wed 9/2

8:10 am-6:16 pm

2 stops12h 06m

$515
Quickest round-trip

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 9/11

1:18 pm-8:39 pm

1 stop5h 21m

Madison Truax Field

Sun 9/13

5:00 am-12:12 pm

2 stops9h 12m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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

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

Airfare is below average for this route at the moment.

Ontario to Madison flights typically cost between $353 and $616 in September.
The cheapest round-trip price found within the last 5 days was $240 on Frontier (Sep 3-Sep 6).

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 July 30, 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
10,046 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
10,046 reviews
United Airlines
7.4
Good
10,046 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,841 reviews
United Airlines
7.4
Good
10,046 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 5h 14m. Your travel time can differ by up to 7h 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 45% 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.

See more FAQs

Traveling to a place near Madison?

Book flights to Madison if you plan to visit one of these locations
Sun Prairie
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 July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$467FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$575FlexibilityNo cancel feeOn-time71%

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