HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$448+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — ONT
nov. 21 — nov. 281
vie. 11/21
vie. 11/28
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 octubre 22, 2025.

Round-trip from

$461
(United Airlines)

One-way from

$448
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$639
From Spain to Ontario
Search Deals
One-way flight from Spain to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($126 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 October 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 octubre 22, 2025.

This United Airlines deal was found by Cheapflights users on 10/21. 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.
jue. 11/136:45 amBIO - ONT
2 stops48h 46mUnited Airlines
lun. 11/175:05 amONT - BIO
2 stops33h 00mUnited Airlines
Deal found 10/21$461
This United Airlines deal was found by Cheapflights users on 10/22. 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.
sáb. 12/66:50 amBCN - ONT
2 stops22h 52mUnited Airlines
sáb. 12/136:41 pmONT - BCN
2 stops28h 39mUnited Airlines
Deal found 10/22$471
This United Airlines deal was found by Cheapflights users on 10/22. 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.
jue. 11/66:00 amMAD - ONT
2 stops25h 51mUnited Airlines
mar. 11/186:00 amONT - MAD
2 stops17h 00mUnited Airlines
Deal found 10/22$472
This United Airlines deal was found by Cheapflights users on 10/20. 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.
jue. 12/46:50 amBCN - ONT
3 stops24h 59mUnited Airlines
jue. 12/115:05 amONT - BCN
2 stops18h 55mUnited Airlines
Deal found 10/20$473
This United Airlines deal was found by Cheapflights users on 10/21. 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.
mié. 11/191:45 pmMAD - ONT
2 stops18h 06mUnited Airlines
mié. 11/265:05 amONT - MAD
2 stops19h 10mUnited Airlines
Deal found 10/21$474
This United Airlines deal was found by Cheapflights users on 10/21. 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.
lun. 11/37:25 amBIO - ONT
2 stops38h 06mUnited Airlines
jue. 11/135:05 amONT - BIO
2 stops28h 00mUnited Airlines
Deal found 10/21$476
This United Airlines deal was found by Cheapflights users on 10/22. 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.
jue. 11/276:00 amMAD - ONT
2 stops20h 34mUnited Airlines
dom. 11/309:35 pmONT - MAD
2 stops37h 40mUnited Airlines
Deal found 10/22$479
This United Airlines deal was found by Cheapflights users on 10/20. 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.
mar. 11/116:00 amMAD - ONT
2 stops39h 37mUnited Airlines
mar. 11/181:33 pmONT - MAD
2 stops17h 37mUnited Airlines
Deal found 10/20$481
This United Airlines deal was found by Cheapflights users on 10/22. 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.
sáb. 11/223:05 pmBCN - ONT
1 stop16h 26mUnited Airlines
dom. 1/185:05 amONT - BCN
2 stops19h 30mUnited Airlines
Deal found 10/22$481
This Finnair deal was found by Cheapflights users on 10/21. 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.
jue. 11/611:00 amBCN - ONT
2 stops20h 23mMultiple Airlines
lun. 11/107:00 amONT - BCN
2 stops17h 00mMultiple Airlines
Deal found 10/21$482
This British Airways deal was found by Cheapflights users on 10/22. 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.
jue. 11/61:00 pmMAD - ONT
1 stop17h 11mBritish Airways
mar. 11/186:10 amONT - MAD
1 stop18h 15mBritish Airways
Deal found 10/22$483
This United Airlines deal was found by Cheapflights users on 10/21. 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.
mié. 11/1910:30 amBCN - ONT
2 stops21h 01mUnited Airlines
dom. 12/75:05 amONT - BCN
2 stops20h 40mUnited Airlines
Deal found 10/21$483

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 octubre 22, 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

BilbaoOntario

BIO - ONT

BIOONT

Bilbao

jue. 11/13

6:45 am-10:51 pm

3 stops25h 06m

Ontario

lun. 11/17

5:05 am-11:05 pm

2 stops33h 00m

$461

BilbaoOntario

BIO - ONT

BIOONT

Bilbao

mar. 11/4

6:45 am-6:36 pm

2 stops20h 51m

Ontario

jue. 11/13

1:29 pm-6:05 pm

2 stops19h 36m

$463

BilbaoOntario

BIO - ONT

BIOONT

Bilbao

vie. 2/6

12:50 pm-10:53 pm

2 stops19h 03m

Ontario

dom. 2/15

6:00 am-4:40 pm

2 stops25h 40m

$466

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

mié. 11/12

1:50 pm-10:51 pm

2 stops18h 01m

Ontario

mar. 12/2

6:00 am-9:00 am

2 stops18h 00m

$471

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

sáb. 11/22

1:55 pm-10:51 pm

2 stops17h 56m

Ontario

jue. 1/22

6:00 am-9:00 am

2 stops18h 00m

$471

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

sáb. 12/6

6:50 am-10:49 pm

3 stops24h 59m

Ontario

sáb. 12/13

6:41 pm-8:20 am

2 stops28h 39m

$471

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

vie. 11/28

9:55 am-7:41 pm

2 stops18h 46m

Ontario

sáb. 1/10

6:00 am-9:00 am

2 stops18h 00m

$471

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

mié. 11/19

1:50 pm-10:51 pm

2 stops18h 01m

Ontario

lun. 12/15

5:05 am-8:20 am

2 stops18h 15m

$471

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

sáb. 11/8

1:55 pm-10:51 pm

2 stops17h 56m

Ontario

sáb. 11/15

7:00 am-1:10 pm

1 stop21h 10m

$471

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

mar. 11/18

6:50 am-6:36 pm

2 stops20h 46m

Ontario

lun. 12/15

5:05 am-8:20 am

2 stops18h 15m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

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, February is the cheapest month in which you can book a flight from Spain to Ontario (average of $319). Flying from Spain to Ontario in July is currently the most expensive (average of $598). 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.

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.

  • How long is the flight from Spain to Ontario?

    United Airlines, British Airways, and Iberia can get you from Spain to Ontario in just under 17h 11m. Your travel time can differ by up to 7h 55m. Spain and Ontario are separated by a distance of 5790 mi. This flight may include one or multiple stops.

  • 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 $467. Users have also found prices from $493 and $504 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 Malaga - 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, February is the cheapest month in which you can book a flight from Spain to Ontario (average of $319). Flying from Spain to Ontario in July is currently the most expensive (average of $598). 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
Frankfurt to Los Angeles flights
Heathrow to Los Angeles flights
Orly to Los Angeles flights
Charles de Gaulle to San Francisco flights
Frankfurt to Las Vegas flights
Heathrow to San Francisco flights
Heathrow to Las Vegas flights
Charles de Gaulle to Burbank flights
Frederic Chopin to Los Angeles flights
Gatwick to Los Angeles flights
Frankfurt to Ontario flights
Madrid to Los Angeles flights
Frankfurt to San Francisco flights
Munich to San Francisco flights
Frankfurt to Long Beach flights
London City to Los Angeles flights
Zurich to Los Angeles flights
Charles de Gaulle to Santa Ana flights
Amsterdam to Los Angeles flights
Frankfurt to Santa Ana flights
Munich to Los Angeles flights
Orly to Las Vegas flights
Charles de Gaulle to Las Vegas flights
Barcelona-El Prat to Los Angeles flights
Vienna to Los Angeles flights
Copenhagen to Los Angeles flights
Zurich to San Francisco flights
Heathrow to Ontario flights
Charles de Gaulle to Long Beach flights
London City to San Francisco flights
Beauvais-Tille to Los Angeles flights
Gatwick to San Francisco flights
Leonardo da Vinci/Fiumicino to Los Angeles flights
Amsterdam to Las Vegas flights
Heathrow to Santa Ana flights
Orly to San Francisco flights
Duesseldorf Intl to Los Angeles flights
Luton to Los Angeles flights
Frankfurt-Hahn to Los Angeles flights
Bruxelles-National to Los Angeles flights
Gatwick to Las Vegas flights
Madrid to San Francisco flights
Stansted to Los Angeles flights
Amsterdam to San Francisco flights
Berlin to Los Angeles flights
Dublin to Los Angeles flights

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.