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$416+ 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
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Round-trip from

$498
(United Airlines)

One-way from

$416
(Iberia)

Popular in

June

Cheapest in

February

Average price

$866
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 ($261 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 May 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 May 1, 2025.

This Finnair deal was found by Cheapflights users on 4/30. 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 12/111:18 pmONT - MAD
1 stop21h 27mMultiple Airlines
Tue 12/912:40 pmMAD - ONT
1 stop16h 32mMultiple Airlines
Deal found 4/30$481
This United Airlines deal was found by Cheapflights users on 4/30. 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 10/75:10 amONT - MAD
2 stops16h 30mUnited Airlines
Tue 10/1412:45 pmMAD - ONT
2 stops32h 47mUnited Airlines
Deal found 4/30$498
This Delta deal was found by Cheapflights users on 4/29. 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 10/76:00 amONT - MAD
2 stops24h 35mDelta
Fri 10/2410:05 amMAD - ONT
1 stop21h 36mDelta
Deal found 4/29$500
This Ovago deal was found by Cheapflights users on 4/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:54 amONT - MAD
1 stop13h 11mBritish Airways
Tue 10/712:40 pmMAD - ONT
1 stop18h 20mBritish Airways
Deal found 4/30$509
This Delta deal was found by Cheapflights users on 4/29. 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 9/2010:59 pmONT - BCN
1 stop23h 16mDelta
Thu 10/29:30 amBCN - ONT
1 stop19h 12mDelta
Deal found 4/29$542
This Travelocity deal was found by Cheapflights users on 4/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/233:00 pmONT - BCN
2 stops20h 25mIberia
Fri 10/312:20 pmBCN - ONT
1 stop18h 36mIberia
Deal found 4/29$545
This Trip.com deal was found by Cheapflights users on 4/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:00 pmONT - MAD
1 stop14h 20mIberia
Tue 10/712:40 pmMAD - ONT
1 stop18h 20mIberia
Deal found 4/29$554
This United Airlines deal was found by Cheapflights users on 4/30. 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 9/285:10 amONT - BCN
2 stops17h 40mUnited Airlines
Tue 10/74:00 pmBCN - ONT
1 stop15h 52mUnited Airlines
Deal found 4/30$582
This Air Canada deal was found by Cheapflights users on 4/30. 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 - MAD
3 stops27h 02mAir Canada
Sat 9/2712:45 pmMAD - ONT
3 stops32h 47mAir Canada
Deal found 4/30$612
This Air Canada deal was found by Cheapflights users on 4/30. 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 9/196:00 amONT - BCN
2 stops16h 50mMultiple Airlines
Fri 10/312:10 pmBCN - ONT
2 stops17h 23mMultiple Airlines
Deal found 4/30$632
This KLM deal was found by Cheapflights users on 4/29. 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.
Wed 9/245:05 pmONT - BCN
2 stops16h 45mKLM
Thu 10/26:20 amBCN - ONT
2 stops19h 57mKLM
Deal found 4/29$667
This KLM deal was found by Cheapflights users on 4/30. 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.
Mon 10/207:00 amONT - MAD
1 stop17h 35mKLM
Fri 10/3110:00 amMAD - ONT
1 stop20h 41mKLM
Deal found 4/30$673

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 May 1, 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

Tue 10/7

5:10 am-6:40 am

2 stops16h 30m

Madrid Barajas

Tue 10/14

12:45 pm-12:32 pm

2 stops32h 47m

$498

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 10/7

6:00 am-3:35 pm

2 stops24h 35m

Madrid Barajas

Fri 10/24

10:05 am-10:41 pm

1 stop21h 36m

$500

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 9/28

10:54 am-9:05 am

1 stop13h 11m

Madrid Barajas

Tue 10/7

12:40 pm-10:00 pm

1 stop18h 20m

$509

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 10/7

8:44 am-2:20 pm

1 stop20h 36m

Madrid Barajas

Fri 10/24

4:00 pm-12:02 am

1 stop17h 02m

$521

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 9/20

10:59 pm-7:15 am

1 stop23h 16m

Barcelona-El Prat

Thu 10/2

9:30 am-7:42 pm

1 stop19h 12m

$542

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/23

3:00 pm-8:25 pm

2 stops20h 25m

Barcelona-El Prat

Fri 10/3

12:20 pm-9:56 pm

1 stop18h 36m

$545

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Fri 9/26

3:00 pm-2:20 pm

1 stop14h 20m

Madrid Barajas

Tue 10/7

12:40 pm-10:00 pm

1 stop18h 20m

$554

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 9/28

5:10 am-7:50 am

2 stops17h 40m

Barcelona-El Prat

Tue 10/7

4:00 pm-10:52 pm

1 stop15h 52m

$582

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Fri 9/19

6:38 pm-6:40 am

3 stops27h 02m

Madrid Barajas

Sat 9/27

12:45 pm-12:32 pm

3 stops32h 47m

$612

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Fri 9/19

6:00 am-7:50 am

2 stops16h 50m

Barcelona-El Prat

Fri 10/3

12:10 pm-8:33 pm

2 stops17h 23m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results
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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 $1,086). 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 May 1, 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 May 1, 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
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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.
Virgin Atlantic
7.4
Good
643 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

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?

    $416 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on British Airways and Delta, with prices starting from $418 and $432, 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 $1,086). 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 5 airlines flying from Ontario to Spain

Discover the top 5 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$489Average$983FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$492Average$800FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$504Average$924FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$560Average$834FlexibilityNo cancel feeOn-time70%
DeltaCheapest$566Average$801FlexibilityNo cancel feeOn-timeN/A

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