What airlines fly to Ontario?

Iberia, American Airlines and British Airways are the top three most popular airlines that fly to Ontario from Madrid according to our data. Iberia is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 9 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 Madrid Barajas to Ontario?

Iberia and American Airlines are the most popular carriers operating from Madrid Barajas to Ontario

When did momondo last update prices for flights from Madrid Barajas Airport to Ontario Airport?

Prices for flights from Madrid Barajas Airport to Ontario Airport refresh daily.

How old do you have to be to fly from Madrid Barajas Airport to Ontario Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Madrid Barajas Airport to Ontario Airport.

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

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$442 Cheap Flights from Madrid to Ontario in 2026

Q: What is the typical price of a round-trip flight between Madrid and Ontario?

Prices are currently low for flights on this route. Typical prices usually range from $788 to $824. The lowest price recently found on this route was $528.

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Find the cheapest flights from Madrid to Los Angeles

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 5:43 pm

MAD

ONT

20h 43m

2 stops

5:05 am - 9:15 am

ONT

MAD

19h 10m

2 stops

$528United Airlines

Mon, Feb 2 - Mon, Feb 9

6:00 am - 5:41 pm

MAD

ONT

44h 41m

2 stops

5:15 am - 7:00 am

ONT

MAD

17h 45m

2 stops

$531United Airlines

Tue, Mar 3 - Tue, Mar 17

5:55 am - 9:50 pm

MAD

ONT

24h 55m

2 stops

5:10 am - 9:00 am

ONT

MAD

18h 50m

2 stops

$532United Airlines

Mon, Apr 13 - Thu, Apr 23

6:00 am - 5:41 pm

MAD

ONT

20h 41m

2 stops

11:59 pm - 7:00 am

ONT

MAD

23h 01m

2 stops

$533United Airlines

Tue, Feb 24 - Mon, Mar 23

1:15 pm - 10:48 pm

MAD

ONT

18h 33m

2 stops

3:09 pm - 9:25 am

ONT

MAD

33h 16m

1 stop

$542American Airlines

Wed, Feb 4 - Sun, Feb 8

3:55 pm - 11:46 pm

MAD

ONT

16h 51m

1 stop

2:08 pm - 2:25 pm

ONT

MAD

15h 17m

1 stop

$546Iberia

Mon, Apr 27 - Mon, May 11

10:35 am - 10:49 pm

MAD

ONT

21h 14m

2 stops

7:00 am - 8:25 am

ONT

MAD

17h 25m

1 stop

$547British Airways

Wed, Mar 4 - Tue, Mar 17

12:40 pm - 10:48 pm

MAD

ONT

19h 08m

1 stop

7:16 am - 9:25 am

ONT

MAD

17h 09m

1 stop

$559Iberia

Wed, Feb 4 - Sun, Feb 8

1:00 pm - 10:48 pm

MAD

ONT

18h 48m

1 stop

10:56 am - 9:25 am

ONT

MAD

13h 29m

1 stop

$564Iberia

Thu, Feb 5 - Thu, Feb 26

3:55 pm - 11:46 pm

MAD

ONT

16h 51m

1 stop

2:08 pm - 2:25 pm

ONT

MAD

15h 17m

1 stop

$565Iberia

Thu, Apr 16 - Mon, Apr 27

British Airways flights from Madrid to Ontario

Our best British Airways deals on Madrid to Ontario flight tickets

British Airways

Mar 4

MAD10:35 amMadrid Barajas

21h 14m

2 stops

ONT10:49 pmOntario

Mar 17

ONT7:00 amOntario

17h 25m

1 stop

MAD8:25 amMadrid Barajas

$547

British Airways

Feb 6

MAD1:00 pmMadrid Barajas

18h 48m

1 stop

ONT10:48 pmOntario

Apr 30

ONT6:00 amOntario

18h 05m

1 stop

MAD9:05 amMadrid Barajas

$815

British Airways

Feb 13

MAD1:00 pmMadrid Barajas

17h 24m

1 stop

ONT9:24 pmOntario

Feb 17

ONT10:56 amOntario

13h 29m

1 stop

MAD9:25 amMadrid Barajas

$825

United Airlines flights from Madrid to Ontario

Our best United Airlines deals on Madrid to Ontario flight tickets

United Airlines

Feb 2

MAD6:00 amMadrid Barajas

20h 43m

2 stops

ONT5:43 pmOntario

Feb 9

ONT5:05 amOntario

19h 10m

2 stops

MAD9:15 amMadrid Barajas

$528

United Airlines

Mar 3

MAD6:00 amMadrid Barajas

44h 41m

2 stops

ONT5:41 pmOntario

Mar 17

ONT5:15 amOntario

17h 45m

2 stops

MAD7:00 amMadrid Barajas

$531

United Airlines

Apr 13

MAD5:55 amMadrid Barajas

24h 55m

2 stops

ONT9:50 pmOntario

Apr 23

ONT5:10 amOntario

18h 50m

2 stops

MAD9:00 amMadrid Barajas

$532

Fly from

Fly to

Route

Depart

Return

Price

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 2/2

6:00 am-5:43 pm

2 stops20h 43m

Ontario

Mon 2/9

5:05 am-9:15 am

2 stops19h 10m

$528

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Tue 3/3

6:00 am-5:41 pm

2 stops44h 41m

Ontario

Tue 3/17

5:15 am-7:00 am

2 stops17h 45m

$531

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 4/13

5:55 am-9:50 pm

2 stops24h 55m

Ontario

Thu 4/23

5:10 am-9:00 am

2 stops18h 50m

$532

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Tue 2/24

6:00 am-5:41 pm

2 stops20h 41m

Ontario

Mon 3/23

11:59 pm-7:00 am

2 stops23h 01m

$533

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 2/4

1:15 pm-10:48 pm

2 stops18h 33m

Ontario

Sun 2/8

3:09 pm-9:25 am

1 stop33h 16m

$542

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 4/27

3:55 pm-11:46 pm

1 stop16h 51m

Ontario

Mon 5/11

2:08 pm-2:25 pm

1 stop15h 17m

$546

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 3/4

10:35 am-10:49 pm

2 stops21h 14m

Ontario

Tue 3/17

7:00 am-8:25 am

1 stop17h 25m

$547

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 2/4

12:40 pm-10:48 pm

1 stop19h 08m

Ontario

Sun 2/8

7:16 am-9:25 am

1 stop17h 09m

$559

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 2/5

1:00 pm-10:48 pm

1 stop18h 48m

Ontario

Thu 2/26

10:56 am-9:25 am

1 stop13h 29m

$564

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 4/16

3:55 pm-11:46 pm

1 stop16h 51m

Ontario

Mon 4/27

2:08 pm-2:25 pm

1 stop15h 17m

$565

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 Madrid 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 typical price of a round-trip flight between Madrid and Ontario?

Can stopping save me money on Madrid to Ontario flights?

You could potentially save up to 11% on your flight if you consider stops on a Madrid to Ontario flight.

When to book flights from Madrid to Ontario

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

Estimated round-trip price

Cheap Madrid to Ontario (MAD to ONT) flight deals and tips

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

Fastest flight time	17h 11m
Direct flights	None

The fastest flight from Madrid to Ontario takes 17h 11m

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

Search flight deals

How far is Madrid Barajas to Ontario by plane?
Madrid Barajas and Ontario are 5789.5 mi apart from one another. By plane, this route typically takes 17h 11m.
When did momondo last update prices for flights from Madrid Barajas Airport to Ontario Airport?
Prices for flights from Madrid Barajas Airport to Ontario Airport refresh daily.
How old do you have to be to fly from Madrid Barajas Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Madrid Barajas Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

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 Ontario from Madrid.

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

Yes. momondo enables you to select and highlight flights to Ontario from Madrid with this policy.

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

momondo provides multiple filters to help you find the best flight to Ontario from Madrid. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Ontario from Madrid are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.