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$435+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Round-trip from

$740
(Iberia)

One-way from

$435
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$606
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. 27% potential increase in price ($275 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This United Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 12/316:00 amONT - MAD
2 stops18h 15mUnited Airlines
Fri 1/912:15 pmMAD - ONT
2 stops41h 02mUnited Airlines
Deal found 3/25$542
This Gurufare deal was found by Cheapflights users on 3/25. 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.
Wed 12/3111:00 amONT - MAD
1 stop13h 25mBritish Airways
Fri 1/91:00 pmMAD - ONT
1 stop18h 02mBritish Airways
Deal found 3/25$583
This Delta deal was found by Cheapflights users on 3/25. 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 10/2510:59 pmONT - MAD
1 stop25h 01mDelta
Thu 11/66:00 amMAD - ONT
2 stops20h 22mDelta
Deal found 3/25$588
This Finnair deal was found by Cheapflights users on 3/25. 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.
Sat 10/2510:55 amONT - MAD
1 stop18h 25mMultiple Airlines
Thu 11/612:40 pmMAD - ONT
1 stop16h 31mMultiple Airlines
Deal found 3/25$600
This Iberia deal was found by Cheapflights users on 3/25. 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.
Thu 10/233:00 pmONT - MAD
1 stop14h 20mIberia
Thu 11/64:00 pmMAD - ONT
1 stop16h 45mIberia
Deal found 3/25$610
This United Airlines deal was found by Cheapflights users on 3/25. 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 10/1310:40 amONT - BCN
1 stop18h 20mUnited Airlines
Fri 10/244:00 pmBCN - ONT
1 stop15h 53mUnited Airlines
Deal found 3/25$749
This Finnair deal was found by Cheapflights users on 3/24. 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.
Fri 10/1710:55 amONT - BCN
2 stops17h 25mMultiple Airlines
Sat 11/111:00 amBCN - ONT
2 stops21h 02mMultiple Airlines
Deal found 3/24$854
This KLM deal was found by Cheapflights users on 3/25. 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 8/127:00 amONT - MAD
1 stop17h 35mKLM
Sun 8/2410:05 amMAD - ONT
1 stop18h 24mKLM
Deal found 3/25$883
This United Airlines deal was found by Cheapflights users on 3/24. 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 5/86:00 amONT - VLC
3 stops45h 05mUnited Airlines
Thu 5/151:00 pmVLC - ONT
2 stops32h 24mUnited Airlines
Deal found 3/24$907
This Iberia deal was found by Cheapflights users on 3/24. 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.
Wed 8/1312:46 pmONT - IBZ
2 stops23h 19mIberia
Wed 8/209:00 amIBZ - ONT
2 stops23h 29mIberia
Deal found 3/24$908
This Booking.com deal was found by Cheapflights users on 3/25. 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.
Fri 12/1212:53 pmONT - VLC
2 stops19h 37mBritish Airways
Tue 12/2312:20 pmVLC - ONT
2 stops20h 28mBritish Airways
Deal found 3/25$934
This Air Canada deal was found by Cheapflights users on 3/25. 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.
Sat 5/104:15 pmONT - BCN
3 stops30h 35mAir Canada
Sat 5/241:50 pmBCN - ONT
3 stops31h 41mAir Canada
Deal found 3/25$940

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 March 26, 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

Wed 8/20

2:59 pm-2:20 pm

1 stop14h 21m

Madrid Barajas

Wed 9/17

4:00 pm-11:36 pm

1 stop16h 36m

$740

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 8/19

5:45 am-6:40 am

2 stops15h 55m

Madrid Barajas

Wed 9/3

12:45 pm-10:26 pm

2 stops18h 41m

$746

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Thu 8/14

6:00 am-8:05 am

2 stops17h 05m

Madrid Barajas

Thu 8/28

11:15 am-10:53 pm

2 stops20h 38m

$805

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 9/17

10:54 am-9:05 am

1 stop13h 11m

Madrid Barajas

Sun 9/21

4:00 pm-11:36 pm

1 stop16h 36m

$856

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 5/12

6:48 pm-2:00 pm

1 stop34h 12m

Barcelona-El Prat

Thu 5/22

12:10 pm-5:25 pm

2 stops38h 15m

$859

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 4/29

7:00 am-9:20 am

1 stop17h 20m

Barcelona-El Prat

Fri 5/9

11:35 am-7:33 pm

1 stop16h 58m

$876

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 8/12

7:00 am-9:35 am

1 stop17h 35m

Madrid Barajas

Sun 8/24

10:05 am-7:29 pm

1 stop18h 24m

$883

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Thu 5/8

6:00 am-12:05 pm

3 stops45h 05m

Valencia

Thu 5/15

1:00 pm-12:24 pm

2 stops32h 24m

$907

OntarioIbiza

ONT - IBZ

ONTIBZ

Ontario

Wed 8/13

12:46 pm-9:05 pm

2 stops23h 19m

Ibiza

Wed 8/20

9:00 am-11:29 pm

2 stops23h 29m

$908

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 5/10

4:15 pm-7:50 am

3 stops30h 35m

Barcelona-El Prat

Sat 5/24

1:50 pm-12:31 pm

3 stops31h 41m

$940

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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 $1,107). 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 March 26, 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 March 26, 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
7,891 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

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
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

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
1,318 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

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
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

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.
Virgin Atlantic
7.4
Good
634 reviews
Delta
8.0
Very good
7,891 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

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
7,891 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

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?

    $527 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on KLM and British Airways, with prices starting from $579 and $591, respectively.

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

    When deciding which route to take from Ontario to Spain consider Ontario - Barcelona-El Prat, Ontario - Madrid Barajas 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 $1,107). 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$489Average$966FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$492Average$811FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$504Average$987FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$551Average$861FlexibilityNo cancel feeOn-time70%
DeltaCheapest$567Average$781FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$690Average$1,032FlexibilityNo cancel feeOn-time67%
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