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$399+ Cheap flights from Ontario (ONT) to Spain

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheap flight deals from Ontario to Spain

Keep the following information in mind while searching for Ontario to Spain flight deals. Data was last updated April 15, 2025.

Round-trip from

$483
(Expedia)

One-way from

$399
(Delta)

Popular in

June

Cheapest in

February

Average price

$781
From Ontario to Spain
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One-way flight from Ontario to Spain
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Highest demand for flights based on searches. 26% potential increase in price ($264 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Ontario to Spain

Cheapest flights from Ontario to Spain
Explore the most affordable flight options available from Ontario to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This Expedia deal was found by Cheapflights users on 4/14. 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.
Sat 9/273:00 pmONT - MAD
1 stop33h 05mIberia
Wed 10/84:00 pmMAD - ONT
1 stop17h 02mIberia
Deal found 4/14$483
This Delta deal was found by Cheapflights users on 4/14. 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.
Sat 9/2710:59 pmONT - MAD
2 stops23h 51mDelta
Wed 10/86:00 amMAD - ONT
2 stops25h 42mDelta
Deal found 4/14$506
This Finnair deal was found by Cheapflights users on 4/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/712:49 pmONT - MAD
1 stop16h 31mMultiple Airlines
Thu 10/24:00 pmMAD - ONT
1 stop16h 36mMultiple Airlines
Deal found 4/15$527
This Iberia deal was found by Cheapflights users on 4/14. 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.
Tue 9/3012:49 pmONT - BCN
2 stops25h 01mIberia
Tue 10/149:15 amBCN - ONT
2 stops23h 47mIberia
Deal found 4/14$547
This United Airlines deal was found by Cheapflights users on 4/14. 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 9/309:35 amONT - BCN
1 stop19h 25mUnited Airlines
Tue 10/1412:15 pmBCN - ONT
2 stops38h 17mUnited Airlines
Deal found 4/14$553
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:38 pmONT - MAD
2 stops28h 12mUnited Airlines
Thu 10/212:45 pmMAD - ONT
2 stops37h 47mUnited Airlines
Deal found 4/15$559
This British Airways deal was found by Cheapflights users on 4/14. 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 9/3010:54 amONT - BCN
1 stop14h 16mBritish Airways
Tue 10/1412:20 pmBCN - ONT
1 stop20h 42mBritish Airways
Deal found 4/14$575
This Air Canada deal was found by Cheapflights users on 4/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:40 amONT - MAD
2 stops17h 10mAir Canada
Fri 9/1912:45 pmMAD - ONT
2 stops19h 08mAir Canada
Deal found 4/15$582
This Delta deal was found by Cheapflights users on 4/14. 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.
Sat 11/110:59 pmONT - BCN
1 stop25h 41mDelta
Wed 11/1210:55 amBCN - ONT
1 stop17h 47mDelta
Deal found 4/14$582
This British Airways deal was found by Cheapflights users on 4/14. 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.
Mon 9/83:00 pmONT - MAD
2 stops17h 25mBritish Airways
Mon 9/224:00 pmMAD - ONT
1 stop16h 36mBritish Airways
Deal found 4/14$589
This American Airlines deal was found by Cheapflights users on 4/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/312:49 pmONT - MAD
1 stop16h 31mAmerican Airlines
Sat 9/1311:35 amMAD - ONT
2 stops19h 05mAmerican Airlines
Deal found 4/15$593
This Air Canada deal was found by Cheapflights users on 4/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:38 pmONT - BCN
3 stops28h 12mMultiple Airlines
Tue 9/301:15 pmBCN - ONT
2 stops31h 58mMultiple Airlines
Deal found 4/15$616

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Spain 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 April 15, 2025.
Use the filters below to find and compare flights from Ontario to Spain that are best for you.

Fly from

Ontario

Fly to

Spain

Route

Depart

Return

Price

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 9/27

3:00 pm-9:05 am

1 stop33h 05m

Madrid Barajas

Wed 10/8

4:00 pm-12:02 am

1 stop17h 02m

$483

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 9/27

10:59 pm-7:50 am

2 stops23h 51m

Madrid Barajas

Wed 10/8

6:00 am-10:42 pm

2 stops25h 42m

$506

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 9/7

12:49 pm-2:20 pm

1 stop16h 31m

Madrid Barajas

Thu 10/2

4:00 pm-11:36 pm

1 stop16h 36m

$527

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/30

12:49 pm-10:50 pm

2 stops25h 01m

Barcelona-El Prat

Tue 10/14

9:15 am-12:02 am

2 stops23h 47m

$547

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/30

9:35 am-2:00 pm

1 stop19h 25m

Barcelona-El Prat

Tue 10/14

12:15 pm-5:32 pm

2 stops38h 17m

$553

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 9/7

6:38 pm-7:50 am

2 stops28h 12m

Madrid Barajas

Thu 10/2

12:45 pm-5:32 pm

2 stops37h 47m

$559

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/30

10:54 am-10:10 am

1 stop14h 16m

Barcelona-El Prat

Tue 10/14

12:20 pm-12:02 am

1 stop20h 42m

$575

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 9/1

5:40 am-7:50 am

2 stops17h 10m

Madrid Barajas

Fri 9/19

12:45 pm-10:53 pm

2 stops19h 08m

$582

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 9/8

3:00 pm-5:25 pm

2 stops17h 25m

Madrid Barajas

Mon 9/22

4:00 pm-11:36 pm

1 stop16h 36m

$589

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 9/3

12:49 pm-2:20 pm

1 stop16h 31m

Madrid Barajas

Sat 9/13

11:35 am-9:40 pm

2 stops19h 05m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 60 results
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6

Best time to book a flight from Ontario to Spain

Have a flexible travel schedule? Discover the best time to fly to Spain 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 Spain

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Spain (average of $543). Flying from Ontario to Spain in June is currently the most expensive (average of $1,101). 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 ES?

Find hourly flight availability from Ontario to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Spain as you normally would.

Rainfall in Spain by month

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

In terms of precipitation, rainfall in Spain ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Spain when rainfall is around 0.8 in.

Temperature in Spain by month

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

If weather is an important factor for your trip to Spain, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Spain

Get insights into the airlines that provide service to Spain. 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 Spain. Reviews last updated April 15, 2025.
See what other customers who have flown with Delta, KLM and United Airlines from Ontario to Spain have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
7,918 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
8,658 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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.
Air Canada
7.0
Good
9,127 reviews
Delta
8.0
Very good
7,918 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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 Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Spain?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Spain. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

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

    $399 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Air Canada and British Airways, with prices starting from $405 and $408, respectively.

  • What are the most popular routes from Ontario to Spain?

    When deciding which route to take from Ontario to Spain consider Ontario - Madrid Barajas, Ontario - Barcelona-El Prat or Ontario - A Coruña as they are the most popular.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Ontario to Spain (average of $543). Flying from Ontario to Spain in June is currently the most expensive (average of $1,101). 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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Alternative routes for Ontario to Spain

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ontario to Spain

Discover the top 6 airlines that operate flights from Ontario to Spain. 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$489Average$974FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$492Average$813FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$504Average$922FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$551Average$806FlexibilityNo cancel feeOn-time70%
DeltaCheapest$567Average$770FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$690Average$1,032FlexibilityNo cancel feeOn-time67%

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