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Ontario

$403+ Cheap flights from Spain 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — ONT
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Spain to Ontario

Keep the following information in mind while searching for Spain to Ontario flight deals. Data was last updated March 28, 2025.

Round-trip from

$647
(lol.travel)

One-way from

$403
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$646
From Spain to Ontario
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One-way flight from Spain to Ontario
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Highest demand for flights based on searches. 18% potential increase in price ($163 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 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 Spain to Ontario

Cheapest flights from Spain to Ontario
Explore the most affordable flight options available from Spain to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This lol.travel deal was found by Cheapflights users on 3/27. 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 02mIberia
Sat 7/192:34 pmONT - MAD
1 stop14h 46mIberia
Deal found 3/27$647
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Tue 9/231:00 pmMAD - ONT
1 stop16h 01mAmerican Airlines
Tue 9/3010:54 amONT - MAD
1 stop13h 11mAmerican Airlines
Deal found 3/27$651
This Finnair deal was found by Cheapflights users on 3/26. 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.
Thu 4/2411:35 amMAD - ONT
2 stops19h 35mMultiple Airlines
Sat 7/198:15 amONT - MAD
1 stop21h 05mMultiple Airlines
Deal found 3/26$658
This lol.travel deal was found by Cheapflights users on 3/27. 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 6/510:35 amBCN - ONT
2 stops21h 27mIberia
Sat 7/198:15 amONT - BCN
1 stop16h 55mIberia
Deal found 3/27$659
This Finnair deal was found by Cheapflights users on 3/27. 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.
Tue 5/66:40 pmBCN - ONT
2 stops26h 10mMultiple Airlines
Tue 5/137:30 amONT - BCN
2 stops20h 55mMultiple Airlines
Deal found 3/27$660
This United Airlines deal was found by Cheapflights users on 3/27. 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 5/612:10 pmBCN - ONT
2 stops35h 15mUnited Airlines
Tue 5/131:45 pmONT - BCN
1 stop15h 15mUnited Airlines
Deal found 3/27$704
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/237:15 amBIO - ONT
2 stops22h 27mUnited Airlines
Tue 9/235:45 amONT - BIO
2 stops20h 00mUnited Airlines
Deal found 3/27$727
This Delta deal was found by Cheapflights users on 3/27. 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 6/511:05 amBCN - ONT
2 stops20h 30mDelta
Wed 6/1111:49 amONT - BCN
2 stops20h 21mDelta
Deal found 3/27$729
This Delta deal was found by Cheapflights users on 3/27. 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.
Wed 6/41:05 pmMAD - ONT
2 stops19h 37mDelta
Mon 6/92:38 pmONT - MAD
2 stops17h 07mDelta
Deal found 3/27$730
This Booking.com deal was found by Cheapflights users on 3/27. 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 6/57:45 amBCN - ONT
2 stops19h 27mBritish Airways
Sat 7/194:45 pmONT - BCN
2 stops16h 40mBritish Airways
Deal found 3/27$745
This Booking.com deal was found by Cheapflights users on 3/27. 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 59mBritish Airways
Fri 7/1812:59 amONT - MAD
1 stop23h 06mBritish Airways
Deal found 3/27$752
This Virgin Atlantic deal was found by Cheapflights users on 3/27. 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 6/59:30 amBCN - ONT
2 stops23h 12mVirgin Atlantic
Sat 7/197:00 amONT - BCN
2 stops19h 55mVirgin Atlantic
Deal found 3/27$755

Cheapflights Fare Finder

Customize your flight search to find flights from Spain 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 28, 2025.
Use the filters below to find and compare flights from Spain to Ontario that are best for you.

Fly from

Spain

Fly to

Ontario

Route

Depart

Return

Price

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 6/5

4:00 pm-11:02 pm

1 stop16h 02m

Ontario

Sat 7/19

2:34 pm-2:20 pm

1 stop14h 46m

$647

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Tue 9/23

1:00 pm-8:01 pm

1 stop16h 01m

Ontario

Tue 9/30

10:54 am-9:05 am

1 stop13h 11m

$651

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 4/24

11:35 am-10:10 pm

2 stops19h 35m

Ontario

Sat 7/19

8:15 am-2:20 pm

1 stop21h 05m

$658

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Thu 6/5

10:35 am-11:02 pm

2 stops21h 27m

Ontario

Sat 7/19

8:15 am-10:10 am

1 stop16h 55m

$659

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Tue 5/6

6:40 pm-11:50 am

2 stops26h 10m

Ontario

Tue 5/13

7:30 am-1:25 pm

2 stops20h 55m

$660

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Tue 5/6

12:10 pm-2:25 pm

2 stops35h 15m

Ontario

Tue 5/13

1:45 pm-2:00 pm

1 stop15h 15m

$704

BilbaoOntario

BIO - ONT

BIOONT

Bilbao

Wed 4/23

7:15 am-8:42 pm

2 stops22h 27m

Ontario

Tue 9/23

5:45 am-10:45 am

2 stops20h 00m

$727

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Thu 6/5

11:05 am-10:35 pm

2 stops20h 30m

Ontario

Wed 6/11

11:49 am-5:10 pm

2 stops20h 21m

$729

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 6/4

1:05 pm-11:42 pm

2 stops19h 37m

Ontario

Mon 6/9

2:38 pm-4:45 pm

2 stops17h 07m

$730

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 4/24

10:05 am-7:28 pm

1 stop18h 23m

Ontario

Sat 7/19

10:59 pm-9:35 am

1 stop25h 36m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 60 results
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Best time to book a flight from Spain to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Spain to Ontario (average of $246). Flying from Spain to Ontario in March is currently the most expensive (average of $326). 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 28, 2025.
See what other customers who have flown with Delta, KLM and Air France from Spain to Ontario 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
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
8,603 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
634 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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 Spain to Ontario. 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 into for flights to Ontario from Spain?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Spain.

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

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $586. Users have also found prices from $665 and $666 on American Airlines and Iberia, respectively.

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

    The most popular route from Spain to Ontario is Barcelona-El Prat - Ontario. You may also consider Madrid Barajas - Ontario or Alicante - Ontario.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Spain to Ontario (average of $246). Flying from Spain to Ontario in March is currently the most expensive (average of $326). 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 Spain to Ontario

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

Discover the top airline that operate flights from Spain 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$508Average$926FlexibilityNo cancel feeOn-time77%
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