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$260+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
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Cheap 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 December 10, 2025.

This Delta deal was found by Cheapflights users on 12/10. 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 12/317:05 amONT - MAD
1 stop17h 10mDelta
Wed 1/146:00 amMAD - ONT
2 stops25h 51mDelta
Deal found 12/10$525
This Delta deal was found by Cheapflights users on 12/10. 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 12/3010:29 pmONT - MAD
1 stop25h 46mDelta
Fri 1/1610:00 amMAD - ONT
2 stops34h 31mDelta
Deal found 12/10$538
This Delta deal was found by Cheapflights users on 12/10. 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 12/3111:15 amONT - MAD
1 stop13h 00mDelta
Sat 1/1711:15 amMAD - ONT
1 stop18h 50mDelta
Deal found 12/10$572
This Delta deal was found by Cheapflights users on 12/10. 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 12/3010:29 pmONT - MAD
1 stop25h 46mDelta
Sat 1/1711:15 amMAD - ONT
1 stop18h 50mDelta
Deal found 12/10$578
This Delta deal was found by Cheapflights users on 12/9. 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 12/3010:29 pmONT - MAD
1 stop25h 46mDelta
Wed 1/1410:00 amMAD - ONT
2 stops20h 05mDelta
Deal found 12/9$590
This Delta deal was found by Cheapflights users on 12/10. 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 12/3010:29 pmONT - MAD
1 stop25h 46mDelta
Tue 1/1310:00 amMAD - ONT
2 stops34h 31mDelta
Deal found 12/10$597
This Delta deal was found by Cheapflights users on 12/10. 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 12/3111:15 amONT - MAD
1 stop13h 00mDelta
Tue 1/1310:00 amMAD - ONT
2 stops34h 31mDelta
Deal found 12/10$598
This Delta deal was found by Cheapflights users on 12/10. 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 12/3111:15 amONT - MAD
1 stop13h 00mDelta
Thu 1/1511:15 amMAD - ONT
1 stop18h 50mDelta
Deal found 12/10$643
This Delta deal was found by Cheapflights users on 12/10. 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 12/317:05 amONT - AGP
2 stops20h 15mDelta
Thu 1/156:05 amAGP - ONT
2 stops25h 46mDelta
Deal found 12/10$692
This Delta deal was found by Cheapflights users on 12/9. 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 12/3010:29 pmONT - VLC
2 stops39h 31mDelta
Wed 1/146:05 amVLC - ONT
2 stops25h 33mDelta
Deal found 12/9$802
This oojo deal was found by Cheapflights users on 12/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:47 pmONT - BCN
2 stops16h 38mBritish Airways
Wed 1/1410:40 amBCN - ONT
1 stop17h 05mBritish Airways
Deal found 12/9$876
This oojo deal was found by Cheapflights users on 12/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:59 pmONT - BCN
2 stops28h 41mBritish Airways
Fri 1/3010:40 amBCN - ONT
1 stop17h 05mBritish Airways
Deal found 12/9$884

Find flight deals from Ontario to Spain

Keep the following information in mind while searching for Ontario to Spain flight deals. Data was last updated December 10, 2025.

Round-trip from

$473
(oojo)

One-way from

$260
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$937
From Ontario to Spain
Search Deals
One-way flight from Ontario to Spain
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($191 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 10, 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

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Thu 1/22

4:45 pm-8:15 pm

2 stops18h 30m

Valencia

Thu 1/29

12:00 pm-10:48 pm

2 stops19h 48m

$473

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Tue 1/20

5:05 am-9:55 pm

2 stops31h 50m

Bilbao

Sat 1/31

7:25 am-5:51 pm

2 stops19h 26m

$488

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Sat 1/24

6:00 am-4:10 pm

2 stops25h 10m

Valencia

Sat 1/31

6:00 am-10:51 pm

2 stops25h 51m

$491

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

Fri 1/23

10:30 pm-12:40 pm

2 stops29h 10m

Palma de Mallorca Son Sant Joan

Fri 1/30

10:35 am-9:05 pm

2 stops43h 30m

$502

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Thu 1/15

10:58 am-12:05 am

2 stops28h 07m

Valencia

Thu 1/29

7:30 am-6:45 pm

2 stops20h 15m

$502

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Sat 1/24

6:00 am-12:20 pm

3 stops21h 20m

Valencia

Sat 1/31

1:10 pm-12:47 pm

3 stops32h 37m

$503

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Thu 1/22

5:05 am-11:50 am

3 stops21h 45m

Valencia

Thu 1/29

6:00 am-8:58 pm

3 stops23h 58m

$503

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 2/22

5:00 am-12:05 pm

2 stops22h 05m

Madrid Barajas

Fri 3/6

1:45 pm-10:57 pm

2 stops18h 12m

$526

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 2/24

5:00 am-9:15 am

2 stops19h 15m

Madrid Barajas

Thu 3/12

6:00 am-10:57 pm

2 stops24h 57m

$527

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 1/19

6:00 am-9:15 am

2 stops18h 15m

Madrid Barajas

Wed 2/4

8:30 am-8:58 pm

2 stops21h 28m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

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 $340). Flying from Ontario to Spain in June is currently the most expensive (average of $612). 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 December 10, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 19% on flights from Ontario to Spain by exploring options for tickets in the afternoon.

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 December 10, 2025.
Read through reviews of airlines operating flights from Ontario to Spain, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

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
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

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
9,092 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

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
11,047 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

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.
Iberia
7.0
Good
3,045 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

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.
British Airways
6.7
Okay
7,573 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Crew

8.5

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.

  • How long is the flight from Ontario to Spain?

    Airlines like British Airways, United Airlines, and Delta fly from Ontario to Spain in about 18h 30m. The time it takes to get you to your destination can typically vary by up to 13h 20m. Airlines will cover a distance of 5958 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    When deciding which route to take from Ontario to Spain consider Ontario - Madrid Barajas, Ontario - Barcelona-El Prat 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 $340). Flying from Ontario to Spain in June is currently the most expensive (average of $612). 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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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 December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$444Average$873FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$489Average$862FlexibilityNo cancel feeOn-time70%
IberiaCheapest$496Average$884FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$595Average$1,174FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$688Average$1,100FlexibilityNo cancel feeOn-time69%

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