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$275+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Feb 17 — Feb 241
Tue 2/17
Tue 2/24
1 adult, Economy
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Cheap flight deals from Ontario to Spain

Keep the following information in mind while searching for Ontario to Spain flight deals. Data was last updated January 18, 2026.

Round-trip from

$423
(oojo)

One-way from

$275
(Finnair)

Popular in

June

Cheapest in

February

Average price

$631
From Ontario to Spain
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One-way flight from Ontario to Spain
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Highest demand for flights based on searches. 19% potential increase in price ($181 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 18, 2026.

This oojo deal was found by Cheapflights users on 1/17. 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 3/32:39 pm
ONT
-
AGP
2 stops18h 26m
British Airways
Tue 3/105:50 pm
AGP
-
ONT
2 stops36h 40m
British Airways
Deal found 1/17$424
This oojo deal was found by Cheapflights users on 1/17. 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.
Mon 2/24:45 pm
ONT
-
MAD
2 stops16h 45m
British Airways
Wed 2/1812:40 pm
MAD
-
ONT
1 stop19h 09m
British Airways
Deal found 1/17$426
This oojo deal was found by Cheapflights users on 1/18. 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.
Mon 2/24:45 pm
ONT
-
MAD
2 stops16h 45m
British Airways
Tue 3/38:50 pm
MAD
-
ONT
2 stops28h 29m
British Airways
Deal found 1/18$431
This oojo deal was found by Cheapflights users on 1/16. 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 2/47:16 am
ONT
-
MAD
1 stop17h 09m
British Airways
Fri 2/1312:40 pm
MAD
-
ONT
1 stop18h 49m
British Airways
Deal found 1/16$436
This British Airways deal was found by Cheapflights users on 1/16. 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.
Sun 1/256:00 am
ONT
-
MAD
1 stop18h 25m
British Airways
Wed 2/412:55 am
MAD
-
ONT
1 stop18h 13m
British Airways
Deal found 1/16$439
This oojo deal was found by Cheapflights users on 1/18. 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.
Mon 2/910:58 am
ONT
-
MAD
1 stop13h 27m
British Airways
Thu 2/1910:35 am
MAD
-
ONT
2 stops20h 32m
British Airways
Deal found 1/18$442
This Finnair deal was found by Cheapflights users on 1/18. 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 1/277:16 am
ONT
-
MAD
2 stops20h 49m
Multiple Airlines
Fri 2/64:25 pm
MAD
-
ONT
2 stops30h 53m
Multiple Airlines
Deal found 1/18$444
This Trip.com deal was found by Cheapflights users on 1/17. 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.
Wed 4/87:30 am
ONT
-
MAD
1 stop17h 05m
British Airways
Thu 4/163:55 pm
MAD
-
ONT
1 stop16h 51m
British Airways
Deal found 1/17$453
This American Airlines deal was found by Cheapflights users on 1/17. 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.
Sun 3/17:00 am
ONT
-
VLC
2 stops23h 50m
American Airlines
Sun 3/88:25 pm
VLC
-
ONT
2 stops30h 17m
American Airlines
Deal found 1/17$463
This United Airlines deal was found by Cheapflights users on 1/17. 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 3/35:00 am
ONT
-
MAD
2 stops18h 00m
United Airlines
Tue 3/1012:40 pm
MAD
-
ONT
2 stops41h 38m
United Airlines
Deal found 1/17$472
This oojo deal was found by Cheapflights users on 1/18. 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.
Fri 2/64:45 pm
ONT
-
MAD
2 stops16h 50m
British Airways
Tue 2/101:00 pm
MAD
-
ONT
1 stop18h 48m
British Airways
Deal found 1/18$476
This oojo deal was found by Cheapflights users on 1/17. 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.
Fri 2/64:45 pm
ONT
-
MAD
2 stops16h 50m
British Airways
Fri 2/1310:35 am
MAD
-
ONT
2 stops20h 32m
British Airways
Deal found 1/17$481

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 January 18, 2026.
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

Tue 3/3

2:39 pm-6:05 pm

2 stops18h 26m

Malaga

Tue 3/10

5:50 pm-10:30 pm

2 stops36h 40m

$424

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 2/4

4:45 pm-8:05 pm

2 stops18h 20m

Madrid Barajas

Fri 2/13

12:40 pm-10:29 pm

1 stop18h 49m

$436

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 1/25

6:00 am-9:25 am

1 stop18h 25m

Madrid Barajas

Wed 2/4

12:55 am-10:08 am

1 stop18h 13m

$439

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 1/25

6:00 am-9:25 am

1 stop18h 25m

Madrid Barajas

Fri 2/6

1:00 pm-10:48 pm

1 stop18h 48m

$439

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 1/27

6:00 am-6:15 am

1 stop15h 15m

Madrid Barajas

Fri 2/6

4:25 pm-10:08 am

2 stops26h 43m

$444

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Sun 3/1

7:00 am-3:50 pm

2 stops23h 50m

Valencia

Sun 3/8

8:25 pm-6:42 pm

2 stops30h 17m

$463

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

Wed 3/4

6:37 pm-9:55 pm

2 stops18h 18m

Bilbao

Wed 3/11

12:50 pm-12:18 pm

2 stops31h 28m

$487

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

Mon 2/9

4:45 pm-11:30 am

2 stops33h 45m

Malaga

Mon 2/16

6:45 pm-4:22 pm

2 stops30h 37m

$487

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/9

5:05 am-8:00 am

2 stops17h 55m

Madrid Barajas

Thu 2/19

6:00 am-5:41 pm

2 stops20h 41m

$493

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/8

7:00 am-9:00 am

2 stops17h 00m

Madrid Barajas

Fri 4/17

11:15 am-8:36 pm

2 stops18h 21m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 60 results
1
2
3
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6

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 $338). Flying from Ontario to Spain in June is currently the most expensive (average of $629). 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.

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 January 18, 2026.
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
8,075 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

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
8,075 reviews
Delta
7.9
Good
8,075 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

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
9,176 reviews
Delta
7.9
Good
8,075 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

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
11,158 reviews
Delta
7.9
Good
8,075 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

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
3,091 reviews
Delta
7.9
Good
8,075 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

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
7,689 reviews
Delta
7.9
Good
8,075 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Overall

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, American Airlines, and Iberia fly from Ontario to Spain in about 18h 26m. The time it takes to get you to your destination can typically vary by up to 5h 24m. Airlines will cover a distance of 5922 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 - Barcelona-El Prat, Ontario - Madrid Barajas 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, February is the cheapest month in which you can book a flight from Ontario to Spain (average of $338). Flying from Ontario to Spain in June is currently the most expensive (average of $629). 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 January 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$444Average$873FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$497Average$885FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$517Average$954FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$538Average$1,204FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$688Average$1,106FlexibilityNo cancel feeOn-time69%

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