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$357+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
janv. 22 — janv. 291
jeu. 1/22
jeu. 1/29
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 décembre 23, 2025.

This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/237:10 amONT - AGP
2 stops25h 55mBritish Airways
dim. 1/181:10 pmAGP - ONT
2 stops37h 12mBritish Airways
Deal found 12/21$816
This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/307:10 amONT - MAD
2 stops19h 45mBritish Airways
lun. 1/127:25 pmMAD - ONT
2 stops32h 20mBritish Airways
Deal found 12/21$855
This oojo deal was found by Cheapflights users on 12/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/306:10 amONT - MAD
1 stop18h 15mBritish Airways
mer. 1/1412:40 pmMAD - ONT
1 stop19h 08mBritish Airways
Deal found 12/22$861
This United Airlines deal was found by Cheapflights users on 12/22. 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.
mar. 12/3011:59 pmONT - MAD
2 stops23h 01mUnited Airlines
mer. 1/148:30 amMAD - ONT
2 stops23h 23mUnited Airlines
Deal found 12/22$866
This United Airlines deal was found by Cheapflights users on 12/21. 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.
mar. 12/305:05 amONT - MAD
2 stops19h 10mUnited Airlines
lun. 1/1211:15 amMAD - ONT
3 stops33h 03mUnited Airlines
Deal found 12/21$917
This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/262:42 pmONT - MAD
1 stop33h 43mBritish Airways
ven. 1/161:00 pmMAD - ONT
1 stop18h 48mBritish Airways
Deal found 12/21$919
This Air France deal was found by Cheapflights users on 12/21. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/297:05 amONT - PMI
2 stops20h 35mKLM
mer. 1/77:05 amPMI - ONT
2 stops23h 00mKLM
Deal found 12/21$958
This American Airlines deal was found by Cheapflights users on 12/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/3110:47 amONT - MAD
1 stop13h 38mAmerican Airlines
ven. 1/161:00 pmMAD - ONT
1 stop18h 48mAmerican Airlines
Deal found 12/22$1,053
This KLM deal was found by Cheapflights users on 12/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2210:29 pmONT - PMI
2 stops29h 11mKLM
ven. 1/27:05 amPMI - ONT
2 stops21h 45mKLM
Deal found 12/22$1,081
This Delta deal was found by Cheapflights users on 12/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3011:10 amONT - MAD
1 stop13h 05mDelta
ven. 1/96:00 amMAD - ONT
2 stops25h 51mDelta
Deal found 12/22$1,104
This Delta deal was found by Cheapflights users on 12/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2910:29 pmONT - MAD
1 stop25h 46mDelta
ven. 1/96:00 amMAD - ONT
2 stops25h 51mDelta
Deal found 12/22$1,113
This United Airlines deal was found by Cheapflights users on 12/22. 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.
mar. 12/236:39 pmONT - BIO
2 stops38h 26mUnited Airlines
mar. 12/3011:35 amBIO - ONT
2 stops43h 58mUnited Airlines
Deal found 12/22$1,116

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 décembre 23, 2025.

Round-trip from

$474
(oojo)

One-way from

$357
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$983
From Ontario to Spain
Search Deals
One-way flight from Ontario to Spain
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($187 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
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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 décembre 23, 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

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

ven. 2/27

5:06 pm-12:15 pm

2 stops34h 09m

Malaga

sam. 3/7

5:30 pm-9:30 pm

2 stops37h 00m

$474

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

mer. 2/4

7:30 am-7:30 pm

2 stops27h 00m

Malaga

mer. 2/11

8:25 pm-9:05 pm

2 stops33h 40m

$492

OntarioAlicante

ONT - ALC

ONTALC

Ontario

mer. 2/4

12:41 pm-5:55 pm

2 stops20h 14m

Alicante

mer. 2/11

8:15 pm-4:02 pm

2 stops28h 47m

$492

OntarioIbiza

ONT - IBZ

ONTIBZ

Ontario

mar. 1/20

6:00 am-12:50 pm

2 stops21h 50m

Ibiza

mar. 1/27

1:30 pm-10:48 pm

2 stops42h 18m

$511

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

mer. 2/4

7:16 am-1:05 pm

2 stops20h 49m

Madrid Barajas

mer. 2/11

10:00 am-10:48 pm

2 stops21h 48m

$513

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

mar. 3/17

5:15 am-7:00 am

2 stops17h 45m

Madrid Barajas

mer. 3/25

5:55 am-10:25 pm

2 stops24h 30m

$526

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

mar. 2/10

10:58 am-9:25 am

1 stop13h 27m

Madrid Barajas

mar. 2/17

2:35 pm-4:24 pm

2 stops34h 49m

$526

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

lun. 1/12

5:05 am-9:15 am

2 stops19h 10m

Madrid Barajas

mar. 1/27

11:15 am-10:53 pm

2 stops20h 38m

$527

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

mer. 2/4

6:00 am-9:15 am

2 stops18h 15m

Madrid Barajas

mer. 2/11

6:25 am-9:58 pm

3 stops24h 33m

$529

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

lun. 1/12

11:59 pm-9:25 am

1 stop24h 26m

Madrid Barajas

mar. 1/27

10:25 am-10:48 pm

2 stops21h 23m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

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, February is the cheapest month in which you can book a flight from Ontario to Spain (average of $339). 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 décembre 23, 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 décembre 23, 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
8,015 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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
8,015 reviews
Delta
7.9
Good
8,015 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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
9,107 reviews
Delta
7.9
Good
8,015 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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
11,051 reviews
Delta
7.9
Good
8,015 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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
3,056 reviews
Delta
7.9
Good
8,015 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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
7,607 reviews
Delta
7.9
Good
8,015 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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, KLM, and Iberia fly from Ontario to Spain in about 21h 50m. The time it takes to get you to your destination can typically vary by up to 12h 19m. Airlines will cover a distance of 6060 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 - Palma de Mallorca Son Sant Joan, Ontario - Barcelona-El Prat or Ontario - Madrid Barajas 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, February is the cheapest month in which you can book a flight from Ontario to Spain (average of $339). 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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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 décembre 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$444Average$873FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$497Average$897FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$517Average$886FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$595Average$1,201FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$688Average$1,100FlexibilityNo cancel feeOn-time69%

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