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Ontario

$91+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — ONT
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap 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 diciembre 12, 2025.

This Frontier deal was found by Cheapflights users on 12/10. 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.
mié. 12/243:00 pmMSN - ONT
1 stop10h 59mFrontier
mié. 12/316:45 amONT - MSN
1 stop5h 30mFrontier
Deal found 12/10$278
This Frontier deal was found by Cheapflights users on 12/11. 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.
mié. 12/243:00 pmMSN - ONT
1 stop10h 59mFrontier
lun. 12/296:45 amONT - MSN
1 stop5h 16mFrontier
Deal found 12/11$304
This Frontier deal was found by Cheapflights users on 12/11. 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.
mié. 12/243:00 pmMSN - ONT
1 stop10h 59mFrontier
vie. 12/266:45 amONT - MSN
1 stop5h 16mFrontier
Deal found 12/11$308
This Frontier deal was found by Cheapflights users on 12/10. 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.
dom. 12/217:17 pmMSN - ONT
1 stop6h 42mFrontier
mié. 12/316:45 amONT - MSN
1 stop5h 30mFrontier
Deal found 12/10$312
This Frontier deal was found by Cheapflights users on 12/11. 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.
dom. 12/217:17 pmMSN - ONT
1 stop6h 42mFrontier
lun. 1/56:45 amONT - MSN
1 stop5h 16mFrontier
Deal found 12/11$318
This Frontier deal was found by Cheapflights users on 12/11. 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.
dom. 12/217:17 pmMSN - ONT
1 stop6h 42mFrontier
lun. 12/296:45 amONT - MSN
1 stop5h 16mFrontier
Deal found 12/11$338
This Frontier deal was found by Cheapflights users on 12/11. 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.
dom. 12/217:17 pmMSN - ONT
1 stop6h 42mFrontier
vie. 12/266:45 amONT - MSN
1 stop5h 16mFrontier
Deal found 12/11$342
This Frontier deal was found by Cheapflights users on 12/9. 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.
mar. 12/234:34 pmMSN - ONT
1 stop9h 25mFrontier
dom. 1/46:45 amONT - MSN
1 stop9h 37mFrontier
Deal found 12/9$367
This Frontier deal was found by Cheapflights users on 12/10. 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.
vie. 12/192:53 pmMSN - ONT
1 stop11h 06mFrontier
mié. 12/246:45 amONT - MSN
1 stop5h 30mFrontier
Deal found 12/10$412
This Delta deal was found by Cheapflights users on 12/11. 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.
mié. 12/175:14 pmMSN - ONT
1 stop7h 50mDelta
jue. 1/810:30 pmONT - MSN
1 stop9h 48mDelta
Deal found 12/11$417
This Frontier deal was found by Cheapflights users on 12/10. 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.
lun. 12/222:56 pmMSN - ONT
1 stop11h 03mFrontier
lun. 12/296:45 amONT - MSN
1 stop5h 16mFrontier
Deal found 12/10$433

Find 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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$278
(Frontier)

One-way from

$91
(Frontier)

Popular in

May

Cheapest in

March

Average price

$463
Provider with most accurate pricing for Madison Truax Field-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Madison Truax Field-Ontario flights.
Search Deals
From Madison Truax Field to Ontario
Search Deals
One-way flight from Madison Truax Field to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 diciembre 12, 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

vie. 1/9

2:50 pm-10:38 pm

2 stops9h 48m

Ontario

mié. 1/14

10:30 pm-10:18 am

1 stop9h 48m

$334

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

jue. 1/8

5:38 am-11:31 am

1 stop7h 53m

Ontario

mar. 1/13

10:30 pm-10:18 am

1 stop9h 48m

$364

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

jue. 1/8

5:38 am-11:31 am

1 stop7h 53m

Ontario

lun. 1/12

10:30 pm-10:18 am

1 stop9h 48m

$364

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

sáb. 2/21

4:23 pm-8:50 pm

1 stop6h 27m

Ontario

mar. 2/24

1:45 pm-9:18 pm

1 stop5h 33m

$379

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

sáb. 2/14

4:23 pm-8:50 pm

1 stop6h 27m

Ontario

mié. 2/18

5:00 am-2:43 pm

1 stop7h 43m

$379

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

jue. 1/8

5:38 am-11:31 am

1 stop7h 53m

Ontario

mié. 1/14

10:30 pm-10:18 am

1 stop9h 48m

$383

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

mar. 1/27

6:30 am-12:47 pm

2 stops8h 17m

Ontario

sáb. 1/31

1:24 pm-9:20 pm

1 stop5h 56m

$384

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

vie. 1/9

4:20 pm-8:58 pm

1 stop6h 38m

Ontario

lun. 1/12

1:24 pm-9:20 pm

1 stop5h 56m

$394

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

jue. 1/8

4:20 pm-8:58 pm

1 stop6h 38m

Ontario

lun. 1/12

1:24 pm-9:20 pm

1 stop5h 56m

$394

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

mar. 1/6

4:20 pm-8:58 pm

1 stop6h 38m

Ontario

mar. 1/13

1:24 pm-9:20 pm

1 stop5h 56m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 22 results
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Madison-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, July is the cheapest month in which you can book a flight from Madison to Ontario (average of $60). Flying from Madison to Ontario in March is currently the most expensive (average of $283). 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 diciembre 12, 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 31% versus a flight at noon.

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 diciembre 12, 2025.
Read through reviews of airlines operating flights from Madison to Ontario, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.2
Good
11,050 reviews
United Airlines
7.4
Good
9,095 reviews

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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.

  • How long is the flight from Madison to Ontario?

    A quick flight from Madison to Ontario can take about 6h 38m. Delta provides one of the quickest options available for as low as $374. The distance from Madison to Ontario is about 1639 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    American Airlines, at $294, was found to be the cheapest airline from Madison to Ontario. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 33% below the average price you’ll pay for this route.

  • 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, July is the cheapest month in which you can book a flight from Madison to Ontario (average of $60). Flying from Madison to Ontario in March is currently the most expensive (average of $283). 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 2 airlines flying from Madison to Ontario

Discover the top 2 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$294Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$313Average$407FlexibilityNo cancel feeOn-time69%

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