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Madison

$86+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSN
Jun 6 — Jun 131
Sat 6/6
Sat 6/13
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 May 7, 2026.

This Frontier deal was found by Cheapflights users on 5/2. 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 5/2$185
This Frontier deal was found by Cheapflights users on 5/3. 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.
Tue 6/236:00 am
ONT
-
MSN
1 stop11h 09m
Frontier
Tue 7/77:59 pm
MSN
-
ONT
1 stop5h 51m
Frontier
Deal found 5/3$230
This CheapOair deal was found by Cheapflights users on 5/4. 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.
Tue 7/76:00 am
ONT
-
MSN
1 stop11h 10m
Frontier
Sun 7/127:59 pm
MSN
-
ONT
1 stop16h 04m
Frontier
Deal found 5/4$240
This Frontier deal was found by Cheapflights users on 5/5. 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 9/310:50 am
ONT
-
MSN
1 stop6h 19m
Frontier
Tue 9/87:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 5/5$250
This CheapOair deal was found by Cheapflights users on 5/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Sun 5/317:59 pm
MSN
-
ONT
1 stop16h 06m
Frontier
Deal found 5/3$261
This Frontier deal was found by Cheapflights users on 5/2. 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 5/176:00 am
ONT
-
MSN
1 stop11h 14m
Frontier
Thu 5/217:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 5/2$266
This Frontier deal was found by Cheapflights users on 5/6. 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.
Tue 7/76:00 am
ONT
-
MSN
1 stop11h 10m
Frontier
Tue 7/147:59 pm
MSN
-
ONT
1 stop5h 51m
Frontier
Deal found 5/6$270
This United Airlines deal was found by Cheapflights users on 5/4. 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 9/17:00 am
ONT
-
MSN
1 stop5h 53m
United Airlines
Sat 9/510:49 am
MSN
-
ONT
1 stop9h 30m
United Airlines
Deal found 5/4$291
This Delta deal was found by Cheapflights users on 5/4. 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.
Tue 9/112:00 pm
ONT
-
MSN
1 stop8h 35m
Delta
Sat 9/59:00 am
MSN
-
ONT
2 stops9h 14m
Delta
Deal found 5/4$296
This Delta deal was found by Cheapflights users on 5/2. 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.
Wed 7/2910:00 pm
ONT
-
MSN
2 stops14h 04m
Delta
Tue 8/46:16 pm
MSN
-
ONT
2 stops7h 18m
Delta
Deal found 5/2$301
This Frontier deal was found by Cheapflights users on 5/6. 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.
Thu 8/1310:49 am
ONT
-
MSN
1 stop6h 21m
Frontier
Tue 8/257:59 pm
MSN
-
ONT
1 stop5h 50m
Frontier
Deal found 5/6$315
This American Airlines deal was found by Cheapflights users on 5/6. 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 7/46:10 am
ONT
-
MSN
1 stop5h 45m
American Airlines
Sat 7/118:00 am
MSN
-
ONT
1 stop6h 03m
American Airlines
Deal found 5/6$331

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 May 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$185
(Frontier)

One-way from

$86
(Expedia)

Popular in

March

Cheapest in

January

Average price

$514
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. 19% potential increase in price ($118 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 7, 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 5/27

6:30 am-2:57 pm

1 stop6h 27m

Madison Truax Field

Sat 5/30

5:00 am-12:38 pm

2 stops9h 38m

$445

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 5/16

7:00 am-3:02 pm

1 stop6h 02m

Madison Truax Field

Sat 5/30

3:50 pm-10:51 pm

1 stop9h 01m

$484
Quickest round-trip

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 6/3

5:00 am-2:08 pm

1 stop7h 08m

Madison Truax Field

Wed 6/10

3:10 pm-8:46 pm

1 stop7h 36m

$573

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 7/4

7:05 am-9:10 pm

2 stops12h 05m

Madison Truax Field

Mon 7/20

6:00 am-12:10 pm

2 stops8h 10m

$574

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 10/2

10:59 pm-10:11 am

1 stop9h 12m

Madison Truax Field

Sun 10/4

5:45 am-9:56 pm

1 stop18h 11m

$588

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Tue 6/2

5:00 am-2:08 pm

1 stop7h 08m

Madison Truax Field

Wed 6/3

3:10 pm-8:46 pm

1 stop7h 36m

$597

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 5/20

5:00 am-2:16 pm

1 stop7h 16m

Madison Truax Field

Wed 6/3

3:53 pm-10:51 pm

1 stop8h 58m

$608

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Tue 7/7

1:00 pm-11:00 pm

2 stops8h 00m

Madison Truax Field

Wed 7/8

11:07 am-6:23 pm

1 stop9h 16m

$627
Cheapest one-way

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 5/30

6:00 am-8:25 am

3 stops48h 25m

$196

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 8/19

12:32 pm-10:32 pm

1 stop8h 00m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/2

Showing 1-10 of 19 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 May.
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

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 May 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
9,690 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

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
9,690 reviews
United Airlines
7.4
Good
9,690 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

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
7.1
Good
11,669 reviews
United Airlines
7.4
Good
9,690 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

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?

    United Airlines can get you from Ontario to Madison in just under 6h 27m. Your travel time can differ by up to . Airlines will cover a distance of 1639 mi.

  • 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 40% 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
Portage
Sun Prairie
Middleton
Baraboo
Fitchburg

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Alternative routes for Ontario to Madison

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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 May 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$546FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$313Average$508FlexibilityNo cancel feeOn-time69%

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