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$300+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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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 November 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$426
(Expedia)

One-way from

$300
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$873
Provider with most accurate pricing for Ontario-Madrid Barajas flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Madrid Barajas flights.
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From Ontario to Madrid Barajas
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One-way flight from Ontario to Madrid Barajas
Search Deals
Highest demand for flights based on searches. 32% potential increase in price ($386 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 18, 2025.

This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:05 amONT - MAD
1 stop17h 10mDelta
Thu 12/1111:15 amMAD - ONT
1 stop20h 49mDelta
Deal found 11/17$438
This KAYAK deal was found by Cheapflights users on 11/17. 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 KAYAK 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
Thu 12/111:00 pmMAD - ONT
1 stop17h 07mBritish Airways
Deal found 11/17$466
This American Airlines deal was found by Cheapflights users on 11/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/282:59 pmONT - MAD
1 stop33h 26mAmerican Airlines
Thu 1/221:00 pmMAD - ONT
1 stop30h 08mAmerican Airlines
Deal found 11/17$479
This British Airways deal was found by Cheapflights users on 11/17. 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.
Fri 11/2810:47 amONT - MAD
2 stops18h 28mBritish Airways
Thu 1/221:00 pmMAD - ONT
1 stop18h 48mBritish Airways
Deal found 11/17$484
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Tue 12/25:05 amONT - MAD
2 stops17h 55mUnited Airlines
Thu 12/116:00 amMAD - ONT
2 stops20h 37mUnited Airlines
Deal found 11/17$487
This Expedia deal was found by Cheapflights users on 11/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:00 amONT - MAD
1 stop17h 25mIberia
Sun 12/712:40 pmMAD - ONT
1 stop20h 15mIberia
Deal found 11/17$488
This United Airlines deal was found by Cheapflights users on 11/16. 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 12/26:00 amONT - MAD
2 stops18h 15mUnited Airlines
Wed 12/1011:05 amMAD - ONT
2 stops18h 37mUnited Airlines
Deal found 11/16$493
This oojo deal was found by Cheapflights users on 11/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2911:59 pmONT - MAD
1 stop24h 26mBritish Airways
Wed 12/1012:40 pmMAD - ONT
1 stop18h 48mBritish Airways
Deal found 11/17$496
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Tue 11/181:33 pmONT - MAD
2 stops17h 37mUnited Airlines
Tue 11/256:00 amMAD - ONT
2 stops20h 34mUnited Airlines
Deal found 11/17$507
This Gurufare deal was found by Cheapflights users on 11/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:47 amONT - MAD
1 stop13h 38mBritish Airways
Thu 12/111:00 pmMAD - ONT
1 stop17h 07mBritish Airways
Deal found 11/17$516
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Thu 12/46:00 amONT - MAD
2 stops17h 05mUnited Airlines
Thu 12/116:00 amMAD - ONT
2 stops20h 37mUnited Airlines
Deal found 11/17$517

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 November 18, 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 12/2

7:05 am-9:15 am

1 stop17h 10m

Madrid Barajas

Thu 12/11

11:15 am-11:04 pm

1 stop20h 49m

$438

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 1/11

6:00 am-9:25 am

1 stop18h 25m

Madrid Barajas

Fri 1/30

10:35 am-10:48 pm

2 stops21h 13m

$450

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 1/11

10:30 pm-4:05 pm

2 stops32h 35m

Madrid Barajas

Tue 1/27

11:15 am-9:05 pm

1 stop18h 50m

$475

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 3/4

5:00 am-8:00 am

2 stops18h 00m

Madrid Barajas

Wed 3/11

12:35 pm-10:25 pm

2 stops41h 50m

$482

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Fri 11/28

10:47 am-2:15 pm

2 stops18h 28m

Madrid Barajas

Thu 1/22

1:00 pm-10:48 pm

1 stop18h 48m

$484

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 2/11

5:05 am-8:00 am

2 stops17h 55m

Madrid Barajas

Fri 3/6

6:00 am-10:57 pm

2 stops25h 57m

$487

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 12/2

5:05 am-8:00 am

2 stops17h 55m

Madrid Barajas

Thu 12/11

6:00 am-8:42 pm

2 stops23h 42m

$487

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 1/14

6:10 am-9:15 am

2 stops18h 05m

Madrid Barajas

Wed 1/28

8:30 am-10:53 pm

2 stops23h 23m

$492

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 12/2

6:00 am-9:15 am

2 stops18h 15m

Madrid Barajas

Wed 12/10

11:05 am-8:42 pm

2 stops18h 37m

$493

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 3/1

1:45 pm-8:00 am

2 stops33h 15m

Madrid Barajas

Fri 3/13

12:35 pm-8:50 pm

2 stops40h 15m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 20 results
1
2

Compare providers for flights from Ontario to Madrid

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Madrid in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Madrid flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Madrid flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Madrid flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Madrid flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Madrid flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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 $343). Flying from Ontario to Madrid in June is currently the most expensive (average of $678). 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 November 18, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% 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 November 18, 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
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

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
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

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
9,015 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

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
11,047 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

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
3,020 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

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
7,528 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

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.

  • How long is the flight from Ontario to Madrid?

    There are many flights that can get you from Ontario to Madrid in 17h 10m. Fly via Delta, British Airways, or United Airlines to get the fastest option. Ontario and Madrid are separated by a distance of 5790 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 British Airways and Iberia, starting at $489 and $489 round-trip. Delta is priced at 44% 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 $343). Flying from Ontario to Madrid in June is currently the most expensive (average of $678). 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
Getafe

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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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$444Average$873FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$489Average$916FlexibilityNo cancel feeOn-time70%
IberiaCheapest$489Average$794FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$523Average$590FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$595Average$1,181FlexibilityNo cancel feeOn-time71%

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