Spain

$257+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Mar 24 — Mar 311
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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 February 22, 2026.

This oojo deal was found by Cheapflights users on 2/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am
ONT
-
MAD
1 stop17h 20m
British Airways
Thu 12/1012:40 pm
MAD
-
ONT
1 stop17h 27m
British Airways
Deal found 2/20$520
This United Airlines deal was found by Cheapflights users on 2/19. 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 11/36:00 am
ONT
-
MAD
2 stops17h 00m
United Airlines
Tue 11/106:00 am
MAD
-
ONT
2 stops20h 47m
United Airlines
Deal found 2/19$529
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Mon 4/137:00 am
ONT
-
MAD
2 stops16h 05m
United Airlines
Wed 4/2210:50 am
MAD
-
ONT
2 stops20h 36m
United Airlines
Deal found 2/22$530
This oojo deal was found by Cheapflights users on 2/19. 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.
Sat 4/1811:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
Fri 5/110:25 am
MAD
-
ONT
1 stop19h 42m
British Airways
Deal found 2/19$553
This BusinessClass deal was found by Cheapflights users on 2/20. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
Wed 4/293:55 pm
MAD
-
ONT
1 stop16h 51m
British Airways
Deal found 2/20$555
This Finnair deal was found by Cheapflights users on 2/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:00 am
ONT
-
MAD
1 stop23h 25m
Multiple Airlines
Wed 4/153:55 pm
MAD
-
ONT
1 stop16h 51m
Multiple Airlines
Deal found 2/22$558
This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:10 am
ONT
-
MAD
3 stops40h 40m
United Airlines
Sun 4/2612:45 pm
MAD
-
ONT
2 stops42h 41m
United Airlines
Deal found 2/18$559
This oojo deal was found by Cheapflights users on 2/21. 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.
Tue 3/243:19 pm
ONT
-
MAD
2 stops19h 11m
British Airways
Fri 4/1710:25 am
MAD
-
ONT
1 stop19h 42m
British Airways
Deal found 2/21$560
This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:00 am
ONT
-
PMI
2 stops29h 40m
KLM
Mon 3/169:25 pm
PMI
-
ONT
2 stops33h 09m
KLM
Deal found 2/20$562
This Ovago deal was found by Cheapflights users on 2/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
Wed 4/223:55 pm
MAD
-
ONT
1 stop16h 51m
British Airways
Deal found 2/22$563
This Finnair deal was found by Cheapflights users on 2/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:59 am
ONT
-
MAD
1 stop18h 26m
Multiple Airlines
Tue 4/213:55 pm
MAD
-
ONT
1 stop27h 14m
Multiple Airlines
Deal found 2/22$564
This oojo deal was found by Cheapflights users on 2/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
Mon 4/2710:25 am
MAD
-
ONT
1 stop19h 42m
British Airways
Deal found 2/20$570

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 February 22, 2026.

Round-trip from

$530
(United Airlines)

One-way from

$257
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$668
From Ontario to Spain
One-way flight from Ontario to Spain
Highest demand for flights based on searches. 17% potential increase in price ($167 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 22, 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

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 4/20

7:00 am-8:05 am

2 stops16h 05m

Madrid Barajas

Mon 5/4

1:30 pm-10:30 pm

2 stops18h 00m

$588

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

Wed 8/19

5:00 am-8:30 am

2 stops18h 30m

Palma de Mallorca Son Sant Joan

Tue 9/15

10:00 am-9:21 pm

2 stops20h 21m

$628

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 4/18

5:10 am-9:00 am

2 stops18h 50m

Madrid Barajas

Sat 4/25

10:50 am-8:36 pm

2 stops18h 46m

$630

OntarioIbiza

ONT - IBZ

ONTIBZ

Ontario

Thu 4/23

12:19 pm-2:45 pm

2 stops41h 26m

Ibiza

Wed 4/29

1:20 pm-11:46 pm

2 stops19h 26m

$640

OntarioAlicante

ONT - ALC

ONTALC

Ontario

Mon 4/27

11:59 pm-3:25 pm

2 stops30h 26m

Alicante

Mon 5/11

2:05 am-6:37 pm

2 stops25h 32m

$676

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

Sun 8/16

5:00 am-8:30 am

2 stops18h 30m

Palma de Mallorca Son Sant Joan

Sat 8/29

12:15 pm-10:26 pm

2 stops19h 11m

$686

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 4/19

7:05 am-12:15 pm

1 stop20h 10m

Madrid Barajas

Mon 4/27

12:45 pm-11:36 am

1 stop31h 51m

$700

OntarioIbiza

ONT - IBZ

ONTIBZ

Ontario

Mon 4/13

4:52 pm-12:15 pm

2 stops34h 23m

Ibiza

Wed 4/29

1:20 pm-11:46 pm

2 stops19h 26m

$707

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

Thu 4/16

12:49 pm-8:20 pm

2 stops22h 31m

Palma de Mallorca Son Sant Joan

Fri 5/1

10:40 pm-4:25 pm

2 stops26h 45m

$723

OntarioAlicante

ONT - ALC

ONTALC

Ontario

Tue 4/28

7:30 am-3:25 pm

2 stops22h 55m

Alicante

Wed 5/13

4:10 pm-10:36 pm

2 stops39h 26m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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 $337). Flying from Ontario to Spain in June is currently the most expensive (average of $613). 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 February 22, 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.

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

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.

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

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.

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

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.

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

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.

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

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.

Crew

8.5

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

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 United Airlines, British Airways, and Delta fly from Ontario to Spain in about 20h 10m. The time it takes to get you to your destination can typically vary by up to 21h 16m. Airlines will cover a distance of 5790 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?

  • 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 $337). Flying from Ontario to Spain in June is currently the most expensive (average of $613). 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.

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 February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$439Average$936FlexibilityNo cancel feeOn-time71%
DeltaCheapest$444Average$873FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$497Average$737FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$504Average$956FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$682Average$941FlexibilityNo cancel feeOn-time69%

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