HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$637+ Cheap flights from Spain to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — ONT
מאי 6 — מאי 131
ג' 5/6
ג' 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Spain to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 מאי 1, 2025.

Round-trip from

$654
(Iberia)

Popular in

July

Cheapest in

February

Average price

$672
From Spain to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($155 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 מאי 1, 2025.

This Finnair deal was found by Cheapflights users on 5/1. 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.
ד' 6/114:00 pmMAD - ONT
1 stop16h 02mMultiple Airlines
ה' 9/113:00 pmONT - MAD
1 stop14h 20mMultiple Airlines
Deal found 5/1$637
This Iberia deal was found by Cheapflights users on 5/1. 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.
א' 5/184:00 pmMAD - ONT
1 stop16h 43mIberia
ה' 7/312:39 pmONT - MAD
1 stop14h 41mIberia
Deal found 5/1$654
This Booking.com deal was found by Cheapflights users on 5/1. 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.
ו' 10/2412:40 pmMAD - ONT
1 stop18h 20mBritish Airways
ש' 11/18:44 amONT - MAD
2 stops19h 06mBritish Airways
Deal found 5/1$657
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ש' 10/181:00 pmMAD - ONT
1 stop16h 00mAmerican Airlines
ש' 10/253:00 pmONT - MAD
1 stop14h 20mAmerican Airlines
Deal found 4/30$673
This Trip.com deal was found by Cheapflights users on 5/1. 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.
ה' 9/412:20 pmBCN - ONT
1 stop18h 36mIberia
ש' 9/2010:54 amONT - BCN
1 stop14h 16mIberia
Deal found 5/1$716
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.
ד' 5/1412:15 pmBCN - ONT
2 stops17h 38mUnited Airlines
ד' 5/211:45 pmONT - BCN
1 stop15h 15mUnited Airlines
Deal found 4/30$731
This United Airlines deal was found by Cheapflights users on 5/1. 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.
ד' 6/1112:45 pmMAD - ONT
2 stops17h 19mUnited Airlines
ו' 7/115:05 amONT - MAD
2 stops16h 35mUnited Airlines
Deal found 5/1$762
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ו' 5/169:20 amBCN - ONT
2 stops22h 15mDelta
ג' 5/2010:01 amONT - BCN
2 stops22h 09mDelta
Deal found 4/30$766
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ה' 5/156:00 amMAD - ONT
2 stops19h 17mDelta
ב' 5/196:00 amONT - MAD
2 stops25h 45mDelta
Deal found 4/30$767
This Air Canada deal was found by Cheapflights users on 5/1. 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.
ה' 9/412:10 pmBCN - ONT
2 stops17h 23mMultiple Airlines
ש' 9/207:00 amONT - BCN
2 stops15h 50mMultiple Airlines
Deal found 5/1$769
This Delta deal was found by Cheapflights users on 5/1. 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.
ש' 5/176:50 amBIO - ONT
2 stops24h 45mDelta
ד' 5/2110:01 amONT - BIO
2 stops21h 29mDelta
Deal found 5/1$835
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.
ו' 6/1312:45 pmMAD - ONT
2 stops17h 19mAir Canada
ב' 7/75:05 amONT - MAD
2 stops16h 35mAir Canada
Deal found 4/30$918

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 מאי 1, 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

ד' 6/11

4:00 pm-11:02 pm

1 stop16h 02m

Ontario

ה' 9/11

3:00 pm-2:20 pm

1 stop14h 20m

$637

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

א' 5/18

4:00 pm-11:43 pm

1 stop16h 43m

Ontario

ה' 7/31

2:39 pm-2:20 pm

1 stop14h 41m

$654

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

ו' 10/24

12:40 pm-10:00 pm

1 stop18h 20m

Ontario

ש' 11/1

8:44 am-11:50 am

2 stops19h 06m

$657

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

ש' 10/18

1:00 pm-8:00 pm

1 stop16h 00m

Ontario

ש' 10/25

3:00 pm-2:20 pm

1 stop14h 20m

$673

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

ה' 9/4

12:20 pm-9:56 pm

1 stop18h 36m

Ontario

ש' 9/20

10:54 am-10:10 am

1 stop14h 16m

$716

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

ד' 5/14

12:15 pm-8:53 pm

2 stops17h 38m

Ontario

ד' 5/21

1:45 pm-2:00 pm

1 stop15h 15m

$731

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

ד' 6/11

12:45 pm-9:04 pm

2 stops17h 19m

Ontario

ו' 7/11

5:05 am-6:40 am

2 stops16h 35m

$762

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

ו' 5/16

9:20 am-10:35 pm

2 stops22h 15m

Ontario

ג' 5/20

10:01 am-5:10 pm

2 stops22h 09m

$766

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

ה' 5/15

6:00 am-4:17 pm

2 stops19h 17m

Ontario

ב' 5/19

6:00 am-4:45 pm

2 stops25h 45m

$767

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

ה' 9/4

12:10 pm-8:33 pm

2 stops17h 23m

Ontario

ש' 9/20

7:00 am-7:50 am

2 stops15h 50m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 results
1
2
3
...
6

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 $328). 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 מאי 1, 2025.
See what other customers who have flown with Delta, KLM and United Airlines 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
7,934 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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
WestJet
7.2
Good
2,826 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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 British Airways. According to our data, you can fly for as low as $693. Users have also found prices from $723 and $772 on Avianca and KLM, respectively.

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

    The most popular route from Spain to Ontario is Madrid Barajas - Ontario. You may also consider Barcelona-El Prat - Ontario or Sevilla - 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 $328). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Spain to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to Los Angeles flights
Heathrow to Los Angeles flights
Charles de Gaulle to San Francisco flights
Heathrow to San Francisco flights
Charles de Gaulle to Burbank flights
Madrid to Los Angeles flights
Frankfurt to Las Vegas flights
Malpensa to Los Angeles flights
Orly to Los Angeles flights
Heathrow to Las Vegas flights
Frankfurt to San Francisco flights
Frankfurt to Los Angeles flights
Linate to Los Angeles flights
Munich to San Francisco flights
Zurich to Los Angeles flights
Charles de Gaulle to Long Beach flights
London City to Los Angeles flights
Vienna to Los Angeles flights
Frederic Chopin to Los Angeles flights
Amsterdam to Los Angeles flights
Orly to San Francisco flights
Munich to Los Angeles flights
Malpensa to Santa Ana flights
Charles de Gaulle to Las Vegas flights
Gatwick to San Francisco flights
Zurich to San Francisco flights
London City to San Francisco flights
Gatwick to Los Angeles flights
Barcelona-El Prat to Los Angeles flights
Leonardo da Vinci/Fiumicino to San Francisco flights
Charles de Gaulle to Santa Ana flights
Barcelona-El Prat to San Francisco flights
Amsterdam to San Francisco flights
Luton to Los Angeles flights
Gatwick to Las Vegas flights
Charles de Gaulle to Oakland flights
Beauvais-Tille to Los Angeles flights
Heathrow to Ontario flights
Dublin to Los Angeles flights
Amsterdam to Las Vegas flights
Frankfurt to Ontario flights
Frankfurt to San Jose flights
Berlin to Los Angeles flights
Frankfurt to Santa Ana flights
Orly to Las Vegas flights
Leonardo da Vinci/Fiumicino to Los Angeles flights

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 מאי 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$508Average$914FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Privacy Preferences©2025 Cheapflights