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Cheap flights from Ontario to Madison from $145

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Madison departing on 5/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Madison

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:50 am - 7:14 pm
ONT
-
MSN
6h 24m
1 stop
Frontier Logo
7:59 pm - 11:49 pm
MSN
-
ONT
5h 50m
1 stop
$270Frontier
Sun, May 10 - Thu, May 14
Frontier Logo
12:59 am - 1:52 pm
ONT
-
MSN
10h 53m
1 stop
Frontier Logo
2:37 pm - 7:31 am
MSN
-
ONT
18h 54m
1 stop
$281Frontier
Wed, Apr 15 - Sun, Apr 19
Frontier Logo
6:00 am - 7:14 pm
ONT
-
MSN
11h 14m
1 stop
Frontier Logo
7:59 pm - 11:49 pm
MSN
-
ONT
5h 50m
1 stop
$335Frontier
Thu, May 21 - Sun, May 24
Frontier Logo
6:20 am - 7:12 pm
ONT
-
MSN
10h 52m
1 stop
Frontier Logo
7:57 pm - 11:56 pm
MSN
-
ONT
5h 59m
1 stop
$346Frontier
Thu, Apr 9 - Sun, Apr 12
United Airlines Logo
5:10 am - 2:38 pm
ONT
-
MSN
7h 28m
1 stop
United Airlines Logo
3:53 pm - 10:31 pm
MSN
-
ONT
8h 38m
1 stop
$369United Airlines
Sat, Apr 11 - Tue, Apr 14
American Airlines Logo
11:59 pm - 11:05 am
ONT
-
MSN
9h 06m
1 stop
American Airlines Logo
9:18 am - 4:22 pm
MSN
-
ONT
9h 04m
2 stops
$374American Airlines
Sat, Apr 11 - Tue, Apr 14
American Airlines Logo
12:19 pm - 8:45 pm
ONT
-
MSN
6h 26m
1 stop
American Airlines Logo
7:35 am - 11:34 am
MSN
-
ONT
5h 59m
1 stop
$375American Airlines
Fri, May 1 - Tue, May 5
American Airlines Logo
10:26 pm - 10:55 am
ONT
-
MSN
10h 29m
1 stop
American Airlines Logo
11:33 am - 8:27 pm
MSN
-
ONT
10h 54m
1 stop
$376American Airlines
Fri, May 1 - Tue, May 5
American Airlines Logo
2:08 pm - 10:32 pm
ONT
-
MSN
6h 24m
1 stop
American Airlines Logo
7:00 am - 1:18 pm
MSN
-
ONT
8h 18m
1 stop
$377American Airlines
Fri, May 1 - Tue, May 5
American Airlines Logo
12:19 pm - 8:45 pm
ONT
-
MSN
6h 26m
1 stop
American Airlines Logo
11:33 am - 8:27 pm
MSN
-
ONT
10h 54m
1 stop
$378American Airlines
Fri, May 1 - Tue, May 5

United Airlines flights from Ontario to Madison

Our best United Airlines deals on Ontario to Madison flight tickets
United Airlines
Apr 11
ONT5:10 amOntario
7h 28m
1 stop
MSN2:38 pmMadison Truax Field
Apr 14
MSN3:53 pmMadison Truax Field
8h 38m
1 stop
ONT10:31 pmOntario
$369
United Airlines
Sep 1
ONT1:18 pmOntario
8h 46m
2 stops
MSN12:04 amMadison Truax Field
Sep 23
MSN5:00 amMadison Truax Field
9h 12m
2 stops
ONT12:12 pmOntario
$397
United Airlines
Jul 7
ONT5:00 amOntario
7h 08m
1 stop
MSN2:08 pmMadison Truax Field
Jul 14
MSN3:46 pmMadison Truax Field
9h 05m
1 stop
ONT10:51 pmOntario
$418

American Airlines flights from Ontario to Madison

Our best American Airlines deals on Ontario to Madison flight tickets
American Airlines
Apr 11
ONT11:59 pmOntario
9h 06m
1 stop
MSN11:05 amMadison Truax Field
Apr 14
MSN9:18 amMadison Truax Field
9h 04m
2 stops
ONT4:22 pmOntario
$374
American Airlines
May 1
ONT12:19 pmOntario
6h 26m
1 stop
MSN8:45 pmMadison Truax Field
May 5
MSN7:35 amMadison Truax Field
5h 59m
1 stop
ONT11:34 amOntario
$375
American Airlines
May 1
ONT10:26 pmOntario
10h 29m
1 stop
MSN10:55 amMadison Truax Field
May 5
MSN11:33 amMadison Truax Field
10h 54m
1 stop
ONT8:27 pmOntario
$376

momondo 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, momondo users made 832,500 searches. Data last updated March 23, 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
Quickest round-trip

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sun 5/10

10:50 am-7:14 pm

1 stop6h 24m

Madison Truax Field

Thu 5/14

7:59 pm-11:49 pm

1 stop5h 50m

$270

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Wed 4/15

12:59 am-1:52 pm

1 stop10h 53m

Madison Truax Field

Sun 4/19

2:37 pm-7:31 am

1 stop18h 54m

$281

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 5/21

6:00 am-7:14 pm

1 stop11h 14m

Madison Truax Field

Sun 5/24

7:59 pm-11:49 pm

1 stop5h 50m

$335

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Thu 4/9

6:20 am-7:12 pm

1 stop10h 52m

Madison Truax Field

Sun 4/12

7:57 pm-11:56 pm

1 stop5h 59m

$346

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 4/11

5:10 am-2:38 pm

1 stop7h 28m

Madison Truax Field

Tue 4/14

3:53 pm-10:31 pm

1 stop8h 38m

$369

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Sat 4/11

11:59 pm-11:05 am

1 stop9h 06m

Madison Truax Field

Tue 4/14

9:18 am-4:22 pm

2 stops9h 04m

$374

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 5/1

12:19 pm-8:45 pm

1 stop6h 26m

Madison Truax Field

Tue 5/5

7:35 am-11:34 am

1 stop5h 59m

$375

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 5/1

10:26 pm-10:55 am

1 stop10h 29m

Madison Truax Field

Tue 5/5

11:33 am-8:27 pm

1 stop10h 54m

$376

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 5/1

2:08 pm-10:32 pm

1 stop6h 24m

Madison Truax Field

Tue 5/5

7:00 am-1:18 pm

1 stop8h 18m

$377

OntarioMadison

ONT - MSN

ONTMSN

Ontario

Fri 5/1

12:19 pm-8:45 pm

1 stop6h 26m

Madison Truax Field

Tue 5/5

11:33 am-8:27 pm

1 stop10h 54m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Madison from

How to get the cheapest flight ticket from Ontario to Madison

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Madison?

The cheapest day to depart from Ontario to Madison is on a Wednesday when prices can be found for as low as $228. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Madison on Friday is $276.

How have Ontario to Madison flight prices changed over time?

When to book flights from Ontario to Madison

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Madison according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Madison (ONT to MSN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Madison

Fastest flight time

5h 49m

Direct flights

None
The fastest flight from Ontario to Madison takes 5h 49m
There are no direct flights from Ontario to Madison. There are no popular flight routes from Ontario to Madison.
Search flight deals

  • How far is Ontario to Madison Truax Field by plane?

    The straight-line distance from Ontario to Madison Truax Field is 1637.1 mi. Flights usually cover this in 5h 49m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Madison Truax Field Airport?

    Prices for flights from Ontario Airport to Madison Truax Field Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Madison Truax Field Airport?

  • How old do you have to be to fly from Ontario Airport to Madison Truax Field Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Madison Truax Field Airport.

  • What documentation or ID do you need to fly to Madison Truax Field Airport?

    The travel and health documents you'll need for your trip to Madison Truax Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Madison Truax Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Madison?

Best airlines flying from Ontario to Madison

Compare and see reviews for airlines that fly from Ontario to Madison with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,460 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights

Traveling to a place near Madison?

Book flights to Madison if you plan to visit one of these locations
Wisconsin Dells
Baraboo
Fitchburg
Middleton
Sun Prairie
Portage
Windsor
Cambridge
Oxford
Evansville

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Madison?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Madison from Ontario.

Can I find flights from Ontario to Madison with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Madison flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Madison?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Madison from Ontario.

I’m not ready to book a flight from Ontario to Madison right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Madison now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Madison and let you know when they change.

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