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$328+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Aug 5 — Aug 121
Wed 8/5
Wed 8/12
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 July 6, 2026.

This United Airlines deal was found by Cheapflights users on 7/3. 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.
Wed 10/285:00 am
ONT
-
MAD
2 stops18h 00m
United Airlines
Tue 11/101:25 pm
MAD
-
ONT
2 stops38h 04m
United Airlines
Deal found 7/3$746
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Wed 9/237:00 am
ONT
-
MAD
2 stops16h 05m
United Airlines
Wed 10/1412:45 pm
MAD
-
ONT
2 stops43h 04m
United Airlines
Deal found 7/3$747
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Wed 11/186:00 am
ONT
-
MAD
2 stops16h 45m
United Airlines
Wed 11/251:25 pm
MAD
-
ONT
2 stops38h 04m
United Airlines
Deal found 7/5$748
This United Airlines deal was found by Cheapflights users on 7/1. 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 7/281:50 pm
ONT
-
SCQ
3 stops33h 25m
United Airlines
Thu 9/1010:00 am
SCQ
-
ONT
2 stops19h 01m
United Airlines
Deal found 7/1$751
This Delta deal was found by Cheapflights users on 7/5. 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.
Mon 9/216:20 am
ONT
-
AGP
2 stops27h 20m
Delta
Thu 10/85:25 pm
AGP
-
ONT
2 stops32h 47m
Delta
Deal found 7/5$756
This Travelocity deal was found by Cheapflights users on 7/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:25 am
ONT
-
MAD
2 stops17h 30m
British Airways
Mon 11/912:55 am
MAD
-
ONT
1 stop26h 27m
British Airways
Deal found 7/3$759
This KLM deal was found by Cheapflights users on 7/5. 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.
Sun 9/201:04 pm
ONT
-
AGP
2 stops21h 26m
KLM
Mon 10/1211:40 pm
AGP
-
ONT
2 stops32h 03m
KLM
Deal found 7/5$760
This British Airways deal was found by Cheapflights users on 7/2. 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.
Wed 9/2310:25 am
ONT
-
MAD
1 stop13h 40m
British Airways
Tue 10/612:40 pm
MAD
-
ONT
1 stop16h 14m
British Airways
Deal found 7/2$761
This British Airways deal was found by Cheapflights users on 7/3. 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.
Wed 9/2310:25 am
ONT
-
MAD
1 stop13h 40m
British Airways
Wed 10/143:55 pm
MAD
-
ONT
1 stop16h 57m
British Airways
Deal found 7/3$763
This Priceline deal was found by Cheapflights users on 7/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:25 am
ONT
-
MAD
1 stop21h 00m
Iberia
Wed 10/147:30 am
MAD
-
ONT
2 stops22h 41m
Iberia
Deal found 7/3$767
This Delta deal was found by Cheapflights users on 7/3. 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.
Sat 9/265:15 pm
ONT
-
MAD
2 stops28h 05m
Delta
Mon 10/51:05 pm
MAD
-
ONT
2 stops36h 19m
Delta
Deal found 7/3$769
This Air Canada deal was found by Cheapflights users on 7/3. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am
ONT
-
MAD
2 stops16h 50m
Multiple Airlines
Fri 10/212:45 pm
MAD
-
ONT
2 stops17h 13m
Multiple Airlines
Deal found 7/3$770

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 July 6, 2026.

Round-trip from

$746
(United Airlines)

One-way from

$328
(Air Canada)

Popular in

June

Cheapest in

February

Average price

$1,070
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 ($199 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 6, 2026.
Use the filters below to find and compare flights from Ontario to Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 9/23

7:00 am-8:05 am

2 stops16h 05m

Madrid Barajas

Wed 10/14

12:45 pm-10:49 pm

2 stops43h 04m

$747

OntarioSantiago de Compostela

ONT - SCQ

ONTSCQ

Ontario

Tue 7/28

1:50 pm-8:15 am

3 stops33h 25m

Santiago de Compostela

Thu 9/10

10:00 am-8:01 pm

2 stops19h 01m

$751

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

Mon 9/21

6:20 am-6:40 pm

2 stops27h 20m

Malaga

Thu 10/8

5:25 pm-5:12 pm

2 stops32h 47m

$756

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

Sun 9/20

1:04 pm-7:30 pm

2 stops21h 26m

Malaga

Mon 10/12

11:40 pm-10:43 pm

2 stops32h 03m

$760

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

Thu 9/17

11:54 am-7:35 pm

2 stops22h 41m

Malaga

Thu 10/8

11:25 pm-10:01 pm

2 stops31h 36m

$810

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

Sun 9/13

10:00 pm-11:45 am

2 stops28h 45m

Malaga

Wed 9/30

5:25 pm-5:20 pm

2 stops32h 55m

$847

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

Mon 8/17

7:00 am-7:15 pm

2 stops27h 15m

Palma de Mallorca Son Sant Joan

Wed 9/2

7:45 am-10:37 pm

2 stops23h 52m

$851

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Tue 9/29

7:00 am-5:30 pm

2 stops25h 30m

Valencia

Thu 10/15

5:55 am-8:58 pm

2 stops24h 03m

$851

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 10/28

5:00 am-8:35 am

2 stops19h 35m

Barcelona-El Prat

Tue 11/10

9:55 am-10:53 pm

2 stops21h 58m

$879

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

Mon 7/27

6:10 am-7:35 am

2 stops16h 25m

Malaga

Wed 8/19

9:35 am-10:35 pm

2 stops22h 00m

$888

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 60 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Ontario to Spain (average of $340). Flying from Ontario to Spain in July is currently the most expensive (average of $1,373). 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 July 6, 2026.
Read through reviews of airlines operating flights from Ontario to Spain, such as United Airlines,American Airlines, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,940 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,940 reviews
United Airlines
7.4
Good
9,940 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,782 reviews
United Airlines
7.4
Good
9,940 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Iberia
7.0
Good
3,247 reviews
United Airlines
7.4
Good
9,940 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
British Airways
6.7
Okay
8,097 reviews
United Airlines
7.4
Good
9,940 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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, Delta, and KLM fly from Ontario to Spain in about 16h 05m. The time it takes to get you to your destination can typically vary by up to 11h 15m. 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?

    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, August is the cheapest month in which you can book a flight from Ontario to Spain (average of $340). Flying from Ontario to Spain in July is currently the most expensive (average of $1,373). 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 3 airlines flying from Ontario to Spain

Discover the top 3 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 July 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$504Average$866FlexibilityNo cancel feeOn-time70%
IberiaCheapest$511Average$687FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$714Average$1,111FlexibilityNo cancel feeOn-time69%

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