HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Madrid

$425+ Cheap flights from Ontario (ONT) to Madrid, Spain (MAD)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Madrid with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to Madrid Barajas are usually found in February or December, booked 78 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Ontario to Madrid

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Madrid (MAD). 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 August 17, 2025.

Round-trip from

$504
(United Airlines)

One-way from

$425
(Ovago)

Popular in

June

Cheapest in

February

Average price

$739
From Ontario to Madrid Barajas
Search Deals
One-way flight from Ontario to Madrid Barajas
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($364 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Ontario to Madrid

Cheapest flights from Ontario to Madrid
Explore the most affordable flight options available from Ontario to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:38 pmONT - MAD
2 stops27h 02mUnited Airlines
Tue 9/3012:30 pmMAD - ONT
2 stops43h 00mUnited Airlines
Deal found 8/17$506
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:02 amONT - MAD
2 stops16h 58mUnited Airlines
Tue 10/712:30 pmMAD - ONT
2 stops38h 10mUnited Airlines
Deal found 8/16$510
This Booking.com deal was found by Cheapflights users on 8/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:32 amONT - MAD
1 stop14h 13mBritish Airways
Wed 12/101:00 pmMAD - ONT
1 stop16h 12mBritish Airways
Deal found 8/15$511
This Iberia deal was found by Cheapflights users on 8/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:55 amONT - MAD
1 stop13h 10mIberia
Thu 10/912:40 pmMAD - ONT
1 stop15h 22mIberia
Deal found 8/17$513
This Iberia deal was found by Cheapflights users on 8/16. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:53 amONT - MAD
1 stop13h 12mIberia
Thu 10/1612:40 pmMAD - ONT
1 stop18h 38mIberia
Deal found 8/16$514
This British Airways deal was found by Cheapflights users on 8/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:47 amONT - MAD
1 stop13h 38mBritish Airways
Tue 12/91:00 pmMAD - ONT
1 stop16h 12mBritish Airways
Deal found 8/17$522
This Finnair deal was found by Cheapflights users on 8/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:00 amONT - MAD
1 stop14h 15mMultiple Airlines
Tue 11/251:00 pmMAD - ONT
1 stop17h 11mMultiple Airlines
Deal found 8/16$524
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:05 amONT - MAD
2 stops17h 55mUnited Airlines
Tue 12/911:15 amMAD - ONT
2 stops19h 34mUnited Airlines
Deal found 8/16$526
This Finnair deal was found by Cheapflights users on 8/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/222:54 pmONT - MAD
1 stop14h 31mMultiple Airlines
Tue 9/304:00 pmMAD - ONT
1 stop27h 04mMultiple Airlines
Deal found 8/17$527
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:00 amONT - MAD
2 stops17h 00mUnited Airlines
Tue 11/256:00 amMAD - ONT
2 stops24h 49mUnited Airlines
Deal found 8/16$528

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Madrid 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 August 17, 2025.
Use the filters below to find and compare flights from Ontario to Madrid that are best for you.

Fly from

Ontario

Fly to

Madrid

Route

Depart

Return

Price

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 2/10

6:02 am-9:15 am

2 stops18h 13m

Madrid Barajas

Tue 2/17

1:35 pm-10:26 pm

2 stops41h 51m

$504

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 9/22

6:38 pm-6:40 am

2 stops27h 02m

Madrid Barajas

Tue 9/30

12:30 pm-10:30 pm

2 stops43h 00m

$506

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 9/30

7:02 am-9:00 am

2 stops16h 58m

Madrid Barajas

Tue 10/7

12:30 pm-5:40 pm

2 stops38h 10m

$510

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 12/3

6:32 am-5:45 am

1 stop14h 13m

Madrid Barajas

Wed 12/10

1:00 pm-8:12 pm

1 stop16h 12m

$511

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 9/29

10:53 am-9:05 am

1 stop13h 12m

Madrid Barajas

Thu 10/16

12:40 pm-10:18 pm

1 stop18h 38m

$514

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 9/30

10:53 am-9:05 am

1 stop13h 12m

Madrid Barajas

Thu 10/16

12:40 pm-10:18 pm

1 stop18h 38m

$514

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 2/10

6:42 pm-8:00 am

2 stops28h 18m

Madrid Barajas

Thu 2/19

1:35 pm-12:33 pm

2 stops31h 58m

$515

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 1/10

6:42 pm-8:00 am

2 stops28h 18m

Madrid Barajas

Fri 1/23

1:35 pm-12:33 pm

2 stops31h 58m

$515

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/9

8:43 am-9:25 am

1 stop15h 42m

Madrid Barajas

Wed 2/18

1:00 pm-9:57 pm

1 stop17h 57m

$515

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 1/17

6:42 pm-8:00 am

2 stops28h 18m

Madrid Barajas

Tue 1/27

1:35 pm-12:33 pm

2 stops31h 58m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Ontario to Madrid

Have a flexible travel schedule? Discover the best time to fly to Madrid from Ontario 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 Ontario to Madrid

How far ahead should I book a flight from Ontario to Madrid?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Madrid. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Madrid, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ontario to Madrid?

Currently, November is the cheapest month in which you can book a flight from Ontario to Madrid (average of $543). Flying from Ontario to Madrid in June is currently the most expensive (average of $1,053). 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 ONT to MAD?

Find hourly flight availability from Ontario to Madrid. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 14% on flights from Ontario to Madrid by exploring options for tickets in the afternoon.

Reviews of airlines servicing Madrid

Get insights into the airlines that provide service to Madrid. 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 Madrid. Reviews last updated August 17, 2025.
Read through reviews of airlines operating flights from Ontario to Madrid, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,884 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.7
Okay
7,271 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Madrid. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Our cheapest airline available from Ontario to Madrid is Delta. Our recent data shows that you can find tickets from as low as $444 on this airline. Additional options worth looking into are United Airlines and Iberia, starting at $492 and $496 round-trip. Delta is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Ontario to Madrid that include hotel bookings?

    Yes. In addition to deals on Ontario to Madrid flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Madrid?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Madrid.

  • Can I find deals for business class flights from Ontario to Madrid?

    Yes. Cheapflights offers flight deals from Ontario to Madrid 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 Ontario to Madrid?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Madrid (average of $543). Flying from Ontario to Madrid in June is currently the most expensive (average of $1,053). 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

Traveling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Segovia
Fuenlabrada

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Ontario to Madrid

Discover the top 5 airlines that operate flights from Ontario to Madrid. 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 August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$444Average$873FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$492Average$590FlexibilityNo cancel feeOn-time69%
IberiaCheapest$496Average$875FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$504Average$816FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$560Average$808FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.