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$343+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Touko 2 — Touko 91
la 5/2
la 5/9
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 huhtikuu 2, 2026.

This KLM deal was found by Cheapflights users on 3/31. 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.
ma 11/167:00 am
ONT
-
MAD
1 stop17h 15m
KLM
to 12/1011:15 am
MAD
-
ONT
1 stop19h 59m
KLM
Deal found 3/31$754
This oojo deal was found by Cheapflights users on 3/30. 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.
ti 9/297:20 am
ONT
-
MAD
2 stops18h 55m
British Airways
ke 10/145:30 pm
MAD
-
ONT
2 stops33h 17m
British Airways
Deal found 3/30$758
This oojo deal was found by Cheapflights users on 3/30. 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.
su 10/1111:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
ke 10/281:00 pm
MAD
-
ONT
1 stop18h 06m
British Airways
Deal found 3/30$759
This KLM deal was found by Cheapflights users on 3/31. 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.
su 10/1112:00 pm
ONT
-
MAD
1 stop15h 15m
KLM
to 10/229:50 am
MAD
-
ONT
1 stop17h 28m
KLM
Deal found 3/31$763
This KLM deal was found by Cheapflights users on 3/29. 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.
su 10/412:00 pm
ONT
-
MAD
1 stop15h 15m
KLM
ti 10/139:50 am
MAD
-
ONT
1 stop17h 28m
KLM
Deal found 3/29$764
This oojo deal was found by Cheapflights users on 4/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 8/1711:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
pe 10/1612:40 pm
MAD
-
ONT
1 stop16h 24m
British Airways
Deal found 4/1$769
This oojo deal was found by Cheapflights users on 3/28. 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.
la 10/311:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
ti 10/1312:20 pm
MAD
-
ONT
1 stop19h 46m
British Airways
Deal found 3/28$770
This United Airlines deal was found by Cheapflights users on 3/27. 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.
su 4/195:10 am
ONT
-
PMI
2 stops25h 10m
United Airlines
to 4/3012:50 pm
PMI
-
ONT
2 stops19h 09m
United Airlines
Deal found 3/27$771
This KLM deal was found by Cheapflights users on 3/31. 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.
ma 8/1712:00 pm
ONT
-
MAD
1 stop15h 15m
KLM
ti 11/1711:15 am
MAD
-
ONT
1 stop19h 59m
KLM
Deal found 3/31$774
This United Airlines deal was found by Cheapflights users on 3/31. 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.
ma 11/165:00 am
ONT
-
MAD
2 stops18h 00m
United Airlines
to 12/101:45 pm
MAD
-
ONT
2 stops18h 21m
United Airlines
Deal found 3/31$789
This United Airlines deal was found by Cheapflights users on 3/29. 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.
ke 9/235:45 am
ONT
-
MAD
2 stops18h 15m
United Airlines
ti 10/611:15 am
MAD
-
ONT
2 stops20h 51m
United Airlines
Deal found 3/29$790
This United Airlines deal was found by Cheapflights users on 3/31. 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.
ma 4/136:00 am
ONT
-
PMI
2 stops24h 15m
United Airlines
ti 4/284:05 pm
PMI
-
ONT
2 stops34h 42m
United Airlines
Deal found 3/31$790

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 huhtikuu 2, 2026.

Round-trip from

$769
(oojo)

One-way from

$343
(oojo)

Popular in

June

Cheapest in

September

Average price

$770
From Ontario to Spain
Search Deals
One-way flight from Ontario to Spain
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($170 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 huhtikuu 2, 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

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

su 4/19

5:10 am-3:20 pm

2 stops25h 10m

Palma de Mallorca Son Sant Joan

to 4/30

12:50 pm-10:59 pm

2 stops19h 09m

$771

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

ti 4/21

11:05 am-3:15 pm

2 stops19h 10m

Palma de Mallorca Son Sant Joan

ti 4/28

4:05 pm-5:47 pm

2 stops34h 42m

$791

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

pe 4/17

5:05 pm-7:40 pm

2 stops17h 35m

Malaga

ti 4/28

5:55 am-10:37 pm

2 stops25h 42m

$818

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

pe 4/17

5:05 pm-7:40 pm

2 stops17h 35m

Malaga

su 4/26

5:55 am-11:44 pm

2 stops26h 49m

$868

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

pe 4/17

5:05 pm-7:40 pm

2 stops17h 35m

Malaga

la 4/25

6:00 am-4:25 pm

2 stops19h 25m

$868

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

ke 4/15

7:00 am-11:40 am

2 stops19h 40m

Palma de Mallorca Son Sant Joan

ke 4/29

4:00 pm-5:52 pm

2 stops34h 52m

$884

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

su 4/26

11:05 am-1:20 pm

2 stops17h 15m

Bilbao

ma 5/4

2:10 pm-10:59 pm

2 stops17h 49m

$902

OntarioValencia

ONT - VLC

ONTVLC

Ontario

ke 4/29

5:10 am-5:30 pm

2 stops27h 20m

Valencia

ma 5/4

12:45 pm-10:59 pm

2 stops19h 14m

$902

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

su 4/26

12:49 pm-12:15 pm

1 stop14h 26m

Madrid Barajas

ti 5/12

9:50 am-6:36 pm

1 stop17h 46m

$928

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

ke 4/29

7:00 am-8:05 am

2 stops16h 05m

Madrid Barajas

to 5/14

11:15 am-10:35 pm

2 stops20h 20m

$932

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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 $334). Flying from Ontario to Spain in June is currently the most expensive (average of $608). 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 huhtikuu 2, 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
9,533 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,533 reviews
United Airlines
7.4
Good
9,533 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.1
Good
11,546 reviews
United Airlines
7.4
Good
9,533 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
3,162 reviews
United Airlines
7.4
Good
9,533 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,842 reviews
United Airlines
7.4
Good
9,533 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 Turkish Airlines fly from Ontario to Spain in about 17h 35m. The time it takes to get you to your destination can typically vary by up to 10h 50m. 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 cheapest airlines to fly from Ontario to Spain one-way?

    $58 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Iberia and KLM, with prices starting from $382 and $825, respectively.

  • 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 - Palma de Mallorca Son Sant Joan 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 $334). Flying from Ontario to Spain in June is currently the most expensive (average of $608). 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 4 airlines flying from Ontario to Spain

Discover the top 4 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 huhtikuu 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$439Average$833FlexibilityNo cancel feeOn-time71%
IberiaCheapest$497Average$757FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$504Average$943FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$682Average$1,102FlexibilityNo cancel feeOn-time69%

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