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Ontario

$456+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — ONT
jan 11 — jan 181
dom 1/11
dom 1/18
1 adult, Economy
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Cheap 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 dezembro 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 12/271:35 pmMAD - ONT
2 stops32h 03mUnited Airlines
ter 1/275:05 amONT - MAD
2 stops19h 10mUnited Airlines
Deal found 12/10$881
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/2411:15 amMAD - ONT
2 stops19h 37mUnited Airlines
qua 2/185:00 amONT - MAD
2 stops19h 15mUnited Airlines
Deal found 12/10$889
This KAYAK deal was found by Cheapflights users on 12/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/241:00 pmMAD - ONT
1 stop16h 58mBritish Airways
qua 2/1810:59 amONT - MAD
1 stop13h 26mBritish Airways
Deal found 12/10$933
This Delta deal was found by Cheapflights users on 12/11. 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.
sex 12/2611:15 amMAD - ONT
1 stop17h 35mDelta
ter 12/3010:29 pmONT - MAD
2 stops28h 01mDelta
Deal found 12/11$956
This KLM deal was found by Cheapflights users on 12/11. 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.
sex 12/2611:15 amMAD - ONT
1 stop31h 45mKLM
ter 12/3010:29 pmONT - MAD
1 stop25h 46mKLM
Deal found 12/11$960
This Iberia deal was found by Cheapflights users on 12/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/2612:55 amMAD - ONT
1 stop20h 01mIberia
ter 1/276:00 amONT - MAD
1 stop15h 15mIberia
Deal found 12/10$1,093
This Air France deal was found by Cheapflights users on 12/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/2610:00 amMAD - ONT
2 stops22h 23mMultiple Airlines
ter 12/307:05 amONT - MAD
2 stops18h 10mMultiple Airlines
Deal found 12/11$1,097
This United Airlines deal was found by Cheapflights users on 12/11. 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.
sex 12/261:35 pmMAD - ONT
2 stops40h 32mUnited Airlines
ter 12/305:05 amONT - MAD
2 stops19h 10mUnited Airlines
Deal found 12/11$1,103
This Rumbo deal was found by Cheapflights users on 12/9. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/241:00 pmMAD - ONT
1 stop16h 58mBritish Airways
dom 12/2811:59 pmONT - MAD
1 stop24h 26mBritish Airways
Deal found 12/9$1,280
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/2511:15 amMAD - ONT
2 stops20h 10mUnited Airlines
sáb 1/310:42 amONT - MAD
2 stops20h 18mUnited Airlines
Deal found 12/10$1,365
This lol.travel deal was found by Cheapflights users on 12/10. 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.
dom 12/217:10 amMAD - ONT
1 stop24h 04mIberia
qui 1/86:00 amONT - MAD
1 stop15h 15mIberia
Deal found 12/10$1,399
This Iberia deal was found by Cheapflights users on 12/11. 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.
sex 12/2612:40 pmMAD - ONT
1 stop18h 34mIberia
ter 12/3010:50 amONT - MAD
1 stop13h 35mIberia
Deal found 12/11$1,443

Find 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 dezembro 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$733
(Iberia)

One-way from

$456
(Finnair)

Popular in

July

Cheapest in

November

Average price

$589
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. 23% potential increase in price ($239 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
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 dezembro 12, 2025.
Use the filters below to find and compare flights from Madrid to Ontario that are best for you.

Fly from

Madrid

Fly to

Ontario

Route

Depart

Return

Price

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qua 1/21

8:30 am-10:53 pm

2 stops23h 23m

Ontario

qui 2/5

6:10 am-9:15 am

2 stops18h 05m

$741

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qui 2/12

6:00 am-10:57 pm

2 stops25h 57m

Ontario

seg 2/16

5:00 am-8:00 am

2 stops18h 00m

$745

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qui 1/15

11:15 am-10:53 pm

2 stops20h 38m

Ontario

qua 1/21

6:00 am-9:15 am

2 stops18h 15m

$755

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qua 1/28

8:30 am-10:53 pm

2 stops23h 23m

Ontario

sex 2/6

5:05 am-9:15 am

2 stops19h 10m

$759

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qui 1/29

6:00 am-9:58 pm

2 stops24h 58m

Ontario

sex 2/27

5:00 am-9:15 am

2 stops19h 15m

$759

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

sáb 2/14

11:15 am-9:59 pm

2 stops19h 44m

Ontario

qua 2/25

5:00 am-9:15 am

2 stops19h 15m

$774

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qua 3/25

8:30 am-10:25 pm

2 stops21h 55m

Ontario

qua 4/15

7:00 am-8:05 am

2 stops16h 05m

$776

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

sex 1/16

6:00 am-12:17 pm

2 stops39h 17m

Ontario

sáb 1/31

6:00 am-9:15 am

2 stops18h 15m

$776

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qui 3/19

6:00 am-5:41 pm

2 stops19h 41m

Ontario

qua 4/15

7:00 am-8:05 am

2 stops16h 05m

$776

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

qui 2/12

11:15 am-9:05 pm

1 stop18h 50m

Ontario

dom 2/22

10:20 pm-9:15 am

1 stop25h 55m

$779

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 22 results
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Expedia the most. Expedia 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.

Cheapflights Insights

Everything you need to know about your flight from Madrid to Ontario

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

Currently, November is the cheapest month in which you can book a flight from Madrid to Ontario (average of $450). Flying from Madrid to Ontario in July is currently the most expensive (average of $666). 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.

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.

  • How long is the flight from Madrid to Ontario?

    Departing from Madrid to Ontario will take you 23h 23m. The distance from Madrid to Ontario is about 5790 mi.

  • 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, November is the cheapest month in which you can book a flight from Madrid to Ontario (average of $450). Flying from Madrid to Ontario in July is currently the most expensive (average of $666). 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

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