£402 Cheap Flights from Madrid (MAD) to Ontario Intl. Airport (ONT)

View £402 flight on Thu, 18 Feb 2027Opens in a new window

Popular airlines from Adolfo Suarez Madrid-Barajas Airport (MAD) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Madrid (MAD) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at £402 for one-way flights and £662 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Thu, 18 Feb - Wed, 24 Feb
MAD
Madrid
ONT
Ontario
£662 Return, found 2 days ago
£662
Return
found 2 days ago
Select British Airways flight, departing Thu, 18 Feb from Madrid to Ontario, returning Wed, 24 Feb, priced at £662 found 2 days ago
British Airways
Wed, 17 Mar - Wed, 24 Mar
MAD
Madrid
ONT
Ontario
£680 Return, found 2 days ago
£680
Return
found 2 days ago
Select British Airways flight, departing Wed, 17 Mar from Madrid to Ontario, returning Wed, 24 Mar, priced at £680 found 2 days ago
British Airways
Sat, 29 Aug - Sun, 27 Sept
MAD
Madrid
ONT
Ontario
£706 Return, found 5 days ago
£706
Return
found 5 days ago
Select British Airways flight, departing Sat, 29 Aug from Madrid to Ontario, returning Sun, 27 Sept, priced at £706 found 5 days ago
British Airways
Thu, 19 Nov - Thu, 10 Dec
MAD
Madrid
ONT
Ontario
£729 Return, found 4 days ago
£729
Return
found 4 days ago
Select British Airways flight, departing Thu, 19 Nov from Madrid to Ontario, returning Thu, 10 Dec, priced at £729 found 4 days ago
British Airways
Sat, 29 Aug - Sun, 27 Sept
MAD
Madrid
ONT
Ontario
£732 Return, found 5 days ago
£732
Return
found 5 days ago
Select British Airways flight, departing Sat, 29 Aug from Madrid to Ontario, returning Sun, 27 Sept, priced at £732 found 5 days ago
British Airways
Mon, 26 Oct - Sun, 1 Nov
MAD
Madrid
ONT
Ontario
£758 Return, found 2 days ago
£758
Return
found 2 days ago
Select British Airways flight, departing Mon, 26 Oct from Madrid to Ontario, returning Sun, 1 Nov, priced at £758 found 2 days ago
British Airways
Sat, 29 Aug - Sat, 26 Sept
MAD
Madrid
ONT
Ontario
£758 Return, found 5 days ago
£758
Return
found 5 days ago
Select British Airways flight, departing Sat, 29 Aug from Madrid to Ontario, returning Sat, 26 Sept, priced at £758 found 5 days ago
British Airways
Mon, 26 Oct - Sun, 1 Nov
MAD
Madrid
ONT
Ontario
£771 Return, found 2 days ago
£771
Return
found 2 days ago
Select British Airways flight, departing Mon, 26 Oct from Madrid to Ontario, returning Sun, 1 Nov, priced at £771 found 2 days ago
British Airways
Thu, 19 Nov - Thu, 10 Dec
MAD
Madrid
ONT
Ontario
£803 Return, found 4 days ago
£803
Return
found 4 days ago
Select British Airways flight, departing Thu, 19 Nov from Madrid to Ontario, returning Thu, 10 Dec, priced at £803 found 4 days ago
Finnair
Tue, 4 Aug - Tue, 11 Aug
MAD
Madrid
ONT
Ontario
£1,179 Return, found 3 days ago
£1,179
Return
found 3 days ago
Select Finnair flight, departing Tue, 4 Aug from Madrid to Ontario, returning Tue, 11 Aug, priced at £1,179 found 3 days ago

Frequently asked questions

How do I find cheap flights from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
To find a cheap flight from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
There are approximately 38 connecting flights per day from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.). Some common connection points include Heathrow (LHR), Frankfurt Intl. (FRA), and Pearson Intl. (YYZ).
What is the earliest flight from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The earliest flight from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) typically departs at approximately 12:55 AM local time. This service is operated by Iberia and American Airlines. This is a seasonal service active in December. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
You'll find the most flights from Adolfo Suárez Madrid-Barajas (MAD) to Los Angeles - Ontario Intl. (ONT) on a Tuesday, with around 48 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Iberia, American Airlines, and Lufthansa. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The most popular departure times for flights from Madrid (MAD) to Ontario, CA (ONT) are between 12pm and 3pm. This accounts for around 41% of total traffic. Many major carriers, including American Airlines and Iberia, offer flights during this window. This timing works well because it allows for a midday departure, giving you time to get to the airport without rushing, and you'll arrive in Ontario, CA in the evening.
How long does it take to fly from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Flights from MAD to ONT with one stop typically take around 17 hours 30 minutes, covering approximately 5,795 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Select the "Business class" and "First class" filters when looking for MAD to ONT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight with Expedia?
It's easy to earn miles on a Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ontario from Adolfo Suarez Madrid-Barajas (MAD)?
From Adolfo Suarez Madrid-Barajas (MAD), you can fly directly into Los Angeles - Ontario Intl. (ONT) to reach Ontario. Some flights may connect through major hubs like Heathrow (LHR), Frankfurt Intl. (FRA), Charlotte-Douglas Intl. (CLT) before reaching Ontario. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) at the last minute?
Typically, booking a last minute flight from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package?
Securing a Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
If you booked your Madrid (MAD-Adolfo Suárez Madrid-Barajas) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Adolfo Suárez Madrid-Barajas
Destination airport
Ontario Intl. Airport
Airlines serving
British Airways
Return price
£661
Distance
9270 km

Book with confidence

Compare flights from Madrid to Ontario Intl. Airport easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Madrid to Ontario Intl. Airport. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Ontario Intl. Airport in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Adolfo Suárez Madrid-Barajas to Ontario Intl. Airport.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Adolfo Suárez Madrid-Barajas (MAD) to Ontario Intl. Airport (ONT)

The easiest way to view the best deals on flights from Madrid to Ontario Intl. Airport today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Adolfo Suárez Madrid-Barajas to Ontario Intl. Airport start at just £662 and range up to £1,179.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Madrid and Ontario Intl. Airport
  • booking your flight during February, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Madrid to Ontario Intl. Airport flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Adolfo Suárez Madrid-Barajas to Ontario Intl. Airport for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Madrid to Ontario Intl. Airport easily and book with confidence

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