What airlines fly to Ontario?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Ontario from Madison according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Madison Truax Field to Ontario?

Frontier, Delta, and United Airlines are the most popular carriers operating from Madison Truax Field to Ontario

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

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

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

There are 2 operators available for flights from Madison Truax Field Airport to Ontario Airport as of January 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Madison Truax Field Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents you'll need for your trip to Ontario 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 Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$191 Cheap Flights from Madison to Ontario in 2026

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Find the cheapest flights from Madison to Los Angeles

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:50 pm - 10:18 pm

MSN

ONT

9h 28m

1 stop

11:59 pm - 10:12 am

ONT

MSN

8h 13m

1 stop

$309United Airlines

Fri, Mar 13 - Tue, Mar 17

2:50 pm - 10:18 pm

MSN

ONT

9h 28m

1 stop

5:15 am - 2:58 pm

ONT

MSN

7h 43m

2 stops

$338United Airlines

Fri, Mar 13 - Tue, Mar 17

4:20 pm - 8:58 pm

MSN

ONT

6h 38m

1 stop

5:00 am - 2:44 pm

ONT

MSN

7h 44m

1 stop

$359United Airlines

Wed, Feb 11 - Sat, Feb 14

4:20 pm - 8:58 pm

MSN

ONT

6h 38m

1 stop

5:00 am - 2:57 pm

ONT

MSN

7h 57m

2 stops

$364United Airlines

Wed, Feb 11 - Sat, Feb 14

11:11 am - 6:15 pm

MSN

ONT

9h 04m

1 stop

10:59 pm - 12:54 pm

ONT

MSN

11h 55m

2 stops

$369Delta

Sat, May 9 - Mon, May 11

2:48 pm - 10:57 pm

MSN

ONT

10h 09m

2 stops

9:06 pm - 10:14 am

ONT

MSN

11h 08m

2 stops

$399United Airlines

Thu, Feb 26 - Mon, Mar 2

6:30 am - 12:43 pm

MSN

ONT

8h 13m

2 stops

5:00 am - 2:43 pm

ONT

MSN

7h 43m

1 stop

$404United Airlines

Tue, Feb 24 - Tue, Mar 3

2:50 pm - 10:18 pm

MSN

ONT

9h 28m

1 stop

11:59 pm - 10:12 am

ONT

MSN

8h 13m

1 stop

$405United Airlines

Fri, Mar 6 - Mon, Mar 9

4:23 pm - 8:50 pm

MSN

ONT

6h 27m

1 stop

5:00 am - 2:43 pm

ONT

MSN

7h 43m

1 stop

$424United Airlines

Sat, Feb 14 - Wed, Feb 18

4:23 pm - 8:50 pm

MSN

ONT

6h 27m

1 stop

6:37 pm - 10:14 am

ONT

MSN

13h 37m

2 stops

$429United Airlines

Sat, Feb 14 - Wed, Feb 18

United Airlines flights from Madison to Ontario

Our best United Airlines deals on Madison to Ontario flight tickets

United Airlines

Mar 13

MSN2:50 pmMadison Truax Field

9h 28m

1 stop

ONT10:18 pmOntario

Mar 17

ONT11:59 pmOntario

8h 13m

1 stop

MSN10:12 amMadison Truax Field

$309

United Airlines

Mar 13

MSN2:50 pmMadison Truax Field

9h 28m

1 stop

ONT10:18 pmOntario

Mar 17

ONT5:15 amOntario

7h 43m

2 stops

MSN2:58 pmMadison Truax Field

$338

United Airlines

Feb 11

MSN4:20 pmMadison Truax Field

6h 38m

1 stop

ONT8:58 pmOntario

Feb 14

ONT5:00 amOntario

7h 44m

1 stop

MSN2:44 pmMadison Truax Field

$359

American Airlines flights from Madison to Ontario

Our best American Airlines deals on Madison to Ontario flight tickets

American Airlines

Mar 14

MSN3:27 pmMadison Truax Field

9h 03m

1 stop

ONT10:30 pmOntario

Mar 16

ONT11:58 pmOntario

8h 41m

1 stop

MSN10:39 amMadison Truax Field

$432

American Airlines

Mar 14

MSN11:24 amMadison Truax Field

9h 18m

1 stop

ONT6:42 pmOntario

Mar 16

ONT7:59 pmOntario

11h 09m

2 stops

MSN9:08 amMadison Truax Field

$437

American Airlines

Feb 26

MSN6:14 amMadison Truax Field

9h 35m

1 stop

ONT1:49 pmOntario

Mar 2

ONT11:59 pmOntario

7h 54m

1 stop

MSN9:53 amMadison Truax Field

$466

Fly from

Fly to

Route

Depart

Return

Price

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Fri 3/13

2:50 pm-10:18 pm

1 stop9h 28m

Ontario

Tue 3/17

11:59 pm-10:12 am

1 stop8h 13m

$309

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Fri 3/13

2:50 pm-10:18 pm

1 stop9h 28m

Ontario

Tue 3/17

5:15 am-2:58 pm

2 stops7h 43m

$338

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Wed 2/11

4:20 pm-8:58 pm

1 stop6h 38m

Ontario

Sat 2/14

5:00 am-2:44 pm

1 stop7h 44m

$359

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Wed 2/11

4:20 pm-8:58 pm

1 stop6h 38m

Ontario

Sat 2/14

5:00 am-2:57 pm

2 stops7h 57m

$364

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sat 5/9

11:11 am-6:15 pm

1 stop9h 04m

Ontario

Mon 5/11

10:59 pm-12:54 pm

2 stops11h 55m

$369

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Thu 2/26

2:48 pm-10:57 pm

2 stops10h 09m

Ontario

Mon 3/2

9:06 pm-10:14 am

2 stops11h 08m

$399

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Tue 2/24

6:30 am-12:43 pm

2 stops8h 13m

Ontario

Tue 3/3

5:00 am-2:43 pm

1 stop7h 43m

$404

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Fri 3/6

2:50 pm-10:18 pm

1 stop9h 28m

Ontario

Mon 3/9

11:59 pm-10:12 am

1 stop8h 13m

$405

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sat 2/14

4:23 pm-8:50 pm

1 stop6h 27m

Ontario

Wed 2/18

5:00 am-2:43 pm

1 stop7h 43m

$424

MadisonOntario

MSN - ONT

MSNONT

Madison Truax Field

Sat 2/14

4:23 pm-8:50 pm

1 stop6h 27m

Ontario

Wed 2/18

6:37 pm-10:14 am

2 stops13h 37m

$429

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Madison to Ontario

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

Prices

Airlines

What is the cheapest month to fly to Ontario?

In general, March is the cheapest month to fly from Madison to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $325. If you aren’t able to travel during the month of March, then book flights to Ontario from Madison during February instead. Flights to Ontario in February, while not as cheap as those in March, still average around $363.

When to book flights from Madison to Ontario

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

Estimated round-trip price

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

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

Fastest flight time	6h 21m
Direct flights	None

The fastest flight from Madison to Ontario takes 6h 21m

There are no direct flights from Madison to Ontario. There are no popular flight routes from Madison to Ontario.

Search flight deals

How far is Madison Truax Field to Ontario by plane?
The distance between Madison Truax Field and Ontario is about 1637.1 mi. In terms of flight time, this usually takes a little over 6h 21m.
When did momondo last update prices for flights from Madison Truax Field Airport to Ontario Airport?
Prices for flights from Madison Truax Field Airport to Ontario Airport are updated daily.
How many operators does momondo search for flights from Madison Truax Field Airport to Ontario Airport?
There are 2 operators available for flights from Madison Truax Field Airport to Ontario Airport as of January 2026.
How old do you have to be to fly from Madison Truax Field Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Madison Truax Field Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario 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 Ontario 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 Madison to Ontario?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Madison to Ontario is American Airlines (76% of total bookings). The next most popular airline is United Airlines (24%).

Best airlines flying from Madison to Ontario

Compare and see reviews for airlines that fly from Madison to Ontario with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $294	Free Cancellation	Rating 7.2 11,205 reviews		Search American Airlines flights
United Airlines	PriceFrom $318	Free Cancellation	Rating 7.4 9,215 reviews		Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Madison to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Ontario from Madison which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Madison and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Madison to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.