HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$496+ Cheap flights from Madrid, Spain (MAD) to Ontario (ONT)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — ONT
Mar 15 — Mar 221
Sat 3/15
Sat 3/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Madrid to Ontario 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.

Cheap flight deals from Madrid to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Madrid (MAD) to Ontario (ONT). 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 March 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$664
(lol.travel)

One-way from

$496
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$716
Provider with most accurate pricing for Madrid Barajas-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Madrid Barajas-Ontario flights.
Search Deals
From Madrid Barajas to Ontario
Search Deals
One-way flight from Madrid Barajas to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($179 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Madrid to Ontario

Cheapest flights from Madrid to Ontario
Explore the most affordable flight options available from Madrid to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2025.

This American Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 3/1912:40 pmMAD - ONT
1 stop16h 13mAmerican Airlines
Wed 4/210:57 amONT - MAD
1 stop13h 08mAmerican Airlines
Deal found 3/9$655
This lol.travel deal was found by Cheapflights users on 3/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/54:00 pmMAD - ONT
1 stop16h 03mIberia
Sat 7/198:15 amONT - MAD
1 stop15h 50mIberia
Deal found 3/10$664
This Delta deal was found by Cheapflights users on 3/9. 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.
Thu 6/1210:05 amMAD - ONT
1 stop18h 24mDelta
Sun 8/37:00 amONT - MAD
1 stop17h 35mDelta
Deal found 3/9$725
This Finnair deal was found by Cheapflights users on 3/10. 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 4/712:25 pmMAD - ONT
2 stops18h 33mMultiple Airlines
Sun 5/112:44 pmONT - MAD
1 stop14h 36mMultiple Airlines
Deal found 3/10$755
This KLM deal was found by Cheapflights users on 3/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2810:00 amMAD - ONT
1 stop17h 29mKLM
Fri 11/2810:59 pmONT - MAD
1 stop25h 01mKLM
Deal found 3/9$758
This United Airlines deal was found by Cheapflights users on 3/9. 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 3/2711:15 amMAD - ONT
3 stops43h 30mUnited Airlines
Sun 3/306:05 amONT - MAD
2 stops41h 00mUnited Airlines
Deal found 3/9$763
This Booking.com deal was found by Cheapflights users on 3/10. 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.
Thu 6/54:00 pmMAD - ONT
1 stop16h 03mBritish Airways
Fri 7/1812:59 amONT - MAD
1 stop23h 06mBritish Airways
Deal found 3/10$802
This Virgin Atlantic deal was found by Cheapflights users on 3/10. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/510:05 amMAD - ONT
2 stops22h 37mVirgin Atlantic
Sat 7/197:00 amONT - MAD
1 stop17h 35mVirgin Atlantic
Deal found 3/10$891

Find flights from Madrid to Ontario within your budget

Customize your flight search to find flights from Madrid to Ontario 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 March 10, 2025.

Fly from

Madrid

Fly to

Ontario

Route

Depart

Return

Price

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 6/5

4:00 pm-11:03 pm

1 stop16h 03m

Ontario

Sat 7/19

8:15 am-9:05 am

1 stop15h 50m

$664

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 3/26

12:40 pm-8:53 pm

1 stop16h 13m

Ontario

Sun 3/30

2:54 pm-2:20 pm

1 stop14h 26m

$671

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 6/12

10:05 am-7:29 pm

1 stop18h 24m

Ontario

Sun 8/3

7:00 am-9:35 am

1 stop17h 35m

$725

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 4/7

12:25 pm-9:58 pm

2 stops18h 33m

Ontario

Sun 5/11

2:44 pm-2:20 pm

1 stop14h 36m

$755

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 4/30

10:05 am-7:28 pm

1 stop18h 23m

Ontario

Wed 11/26

10:59 pm-9:00 am

1 stop25h 01m

$758

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 3/27

11:15 am-10:45 pm

3 stops43h 30m

Ontario

Sun 3/30

6:05 am-8:05 am

2 stops41h 00m

$763

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 6/5

4:00 pm-11:03 pm

1 stop16h 03m

Ontario

Fri 7/18

12:59 am-9:05 am

1 stop23h 06m

$802

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 6/5

10:05 am-11:42 pm

2 stops22h 37m

Ontario

Sat 7/19

7:00 am-9:35 am

1 stop17h 35m

$891

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 3/26

12:20 pm-12:44 pm

3 stops32h 24m

Ontario

Sun 3/30

1:35 pm-6:40 am

3 stops32h 05m

$1,437

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Tue 4/8

6:45 am-3:04 pm

3 stops41h 19m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 19 results
1
2

Compare providers for flights from Madrid to Ontario

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 Madrid to Ontario in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 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 Madrid-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Madrid-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Madrid-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Madrid-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub 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 Madrid-Ontario 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 Madrid to Ontario

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

Travel insights for flights from Madrid to Ontario

Get recent, data-driven insights about flights from Madrid to Ontario including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Madrid to Ontario (average of $246). Flying from Madrid to Ontario in March is currently the most expensive (average of $313). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated March 10, 2025.
Get a feel of what it's like to fly with Delta, KLM and United Airlines from Madrid to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,320 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,631 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.4
Good
641 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Madrid to Ontario. 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 Madrid to Ontario round-trip?

    Our cheapest airline available from Madrid to Ontario is Iberia. Our recent data shows that you can find tickets from as low as $664 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $671 and $725 round-trip.

  • What are the cheapest airlines to fly from Madrid to Ontario one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $702. Users have also found prices from $707 and $708 on KLM and British Airways, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Madrid to Ontario (average of $246). Flying from Madrid to Ontario in March is currently the most expensive (average of $313). 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

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 2 airlines flying from Madrid to Ontario

Discover the top 2 airlines that operate flights from Madrid to Ontario. 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 March 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$764Average$1,336FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$942Average$1,289FlexibilityNo 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.