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$149+ Cheap flights from Madison to Ontario (MSN - ONT)

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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — ONT
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheap flight deals from Madison to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Madison (MSN) to Ontario (ONT). 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$288
(Frontier)

One-way from

$149
(Frontier)

Popular in

December

Cheapest in

April

Average price

$354
Provider with most accurate pricing for Madison Truax Field-Ontario flight deals.
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Provider most trusted by Cheapflights users for Madison Truax Field-Ontario flights.
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From Madison Truax Field to Ontario
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One-way flight from Madison Truax Field to Ontario
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Highest demand for flights based on searches. 6% potential increase in price ($28 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 March 2025
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Find flight deals from Madison to Ontario

Cheapest flights from Madison to Ontario
Explore the most affordable flight options available from Madison to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Frontier deal was found by Cheapflights users on 3/25. 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 4/101:52 pmMSN - ONT
1 stop12h 07mFrontier
Sat 4/1212:59 amONT - MSN
1 stop10h 03mFrontier
Deal found 3/25$288
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/226:37 amMSN - ONT
1 stop7h 09mAmerican Airlines
Sat 5/106:15 amONT - MSN
1 stop8h 24mAmerican Airlines
Deal found 3/25$289
This Delta deal was found by Cheapflights users on 3/25. 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 4/225:10 pmMSN - ONT
1 stop7h 26mDelta
Sat 5/101:10 pmONT - MSN
2 stops8h 11mDelta
Deal found 3/25$294
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 8/165:21 pmMSN - ONT
1 stop6h 50mUnited Airlines
Thu 8/217:00 amONT - MSN
1 stop7h 37mUnited Airlines
Deal found 3/24$379
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/163:07 pmMSN - ONT
2 stops11h 06mAlaska Airlines
Wed 8/277:17 pmONT - MSN
2 stops13h 30mAlaska Airlines
Deal found 3/24$519

Cheapflights Fare Finder

Customize your flight search to find flights from Madison to Ontario 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 March 26, 2025.
Use the filters below to find and compare flights from Madison to Ontario that are best for you.

Fly from

Madison

Fly to

Ontario

Route

Depart

Return

Price

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Thu 4/10

1:52 pm-11:59 pm

1 stop12h 07m

Ontario

Sat 4/12

12:59 am-1:02 pm

1 stop10h 03m

$288

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Tue 4/22

6:37 am-11:46 am

1 stop7h 09m

Ontario

Sat 5/10

6:15 am-4:39 pm

1 stop8h 24m

$289

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Tue 4/22

5:10 pm-10:36 pm

1 stop7h 26m

Ontario

Sat 5/10

1:10 pm-11:21 pm

2 stops8h 11m

$294

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sat 8/16

5:21 pm-10:11 pm

1 stop6h 50m

Ontario

Thu 8/21

7:00 am-4:37 pm

1 stop7h 37m

$379

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sat 8/16

3:07 pm-12:13 am

2 stops11h 06m

Ontario

Wed 8/27

7:17 pm-10:47 am

2 stops13h 30m

$519

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sat 5/17

7:41 pm-11:59 pm

1 stop6h 18m

$149

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Wed 5/14

5:30 am-11:08 am

1 stop7h 38m

$222

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sun 8/10

5:40 pm-11:29 pm

1 stop7h 49m

$259

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Tue 5/20

3:22 pm-8:53 pm

1 stop7h 31m

$267

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Tue 5/13

5:09 am-3:32 pm

2 stops12h 23m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Compare providers for flights from Madison to Ontario

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 Madison to Ontario in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 Madison-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Madison-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Madison-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Madison-Ontario 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 Madison-Ontario 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 Madison to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Madison 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 Madison to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Madison to Ontario (average of $246). Flying from Madison to Ontario in March is currently the most expensive (average of $326). 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 MSN to ONT?

Find hourly flight availability from Madison to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

When flying from Madison to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 32% versus a flight at noon.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated March 26, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from Madison to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,789 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,789 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,891 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,608 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Frontier
6.0
Okay
3,272 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

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

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

    Frontier, at $288, was found to be the cheapest airline from Madison to Ontario.Alternate airlines to your destination round-trip include American Airlines and Delta. Frontier is currently priced 27% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $149. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Madison to Ontario for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Madison to Ontario 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 Madison to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Madison to Ontario (average of $246). Flying from Madison to Ontario in March is currently the most expensive (average of $326). 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

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Top 4 airlines flying from Madison to Ontario

Discover the top 4 airlines that operate flights from Madison to Ontario. 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$234FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$283Average$460FlexibilityNo cancel feeOn-time71%
DeltaCheapest$294Average$493FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$493FlexibilityNo cancel feeOn-time69%
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