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$253+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
dic. 31 — ene. 71
mié. 12/31
mié. 1/7
1 adult, Economy
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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 diciembre 1, 2025.

This United Airlines deal was found by Cheapflights users on 11/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:00 amONT - MAD
2 stops18h 15mUnited Airlines
mar. 12/1611:15 amMAD - ONT
2 stops19h 34mUnited Airlines
Deal found 11/30$518
This United Airlines deal was found by Cheapflights users on 11/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/55:05 amONT - MAD
2 stops19h 10mUnited Airlines
mar. 12/911:15 amMAD - ONT
2 stops19h 34mUnited Airlines
Deal found 11/28$531
This American Airlines deal was found by Cheapflights users on 12/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/1210:47 amONT - AGP
2 stops23h 28mAmerican Airlines
lun. 12/155:35 pmAGP - ONT
2 stops29h 20mAmerican Airlines
Deal found 12/1$558
This Delta deal was found by Cheapflights users on 11/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/56:40 amONT - SVQ
2 stops23h 45mDelta
lun. 12/84:20 pmSVQ - ONT
2 stops33h 47mDelta
Deal found 11/28$613
This oojo deal was found by Cheapflights users on 11/30. 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.
vie. 12/1212:46 pmONT - MAD
1 stop35h 39mBritish Airways
mié. 12/241:00 pmMAD - ONT
1 stop16h 58mBritish Airways
Deal found 11/30$621
This KLM deal was found by Cheapflights users on 11/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/57:05 amONT - MAD
1 stop17h 10mKLM
jue. 12/1111:15 amMAD - ONT
1 stop17h 24mKLM
Deal found 11/28$700
This Iberia deal was found by Cheapflights users on 11/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/77:03 amONT - MAD
1 stop17h 22mIberia
dom. 12/147:10 amMAD - ONT
1 stop24h 05mIberia
Deal found 11/28$716
This Delta deal was found by Cheapflights users on 11/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/56:40 amONT - SVQ
2 stops23h 45mDelta
lun. 12/154:20 pmSVQ - ONT
2 stops33h 47mDelta
Deal found 11/28$742
This United Airlines deal was found by Cheapflights users on 11/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/81:50 pmONT - MAD
2 stops33h 10mUnited Airlines
dom. 12/285:55 amMAD - ONT
2 stops37h 06mUnited Airlines
Deal found 11/30$748
This oojo deal was found by Cheapflights users on 12/1. 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.
mar. 12/304:47 pmONT - BCN
2 stops17h 58mBritish Airways
dom. 1/1810:40 amBCN - ONT
1 stop17h 05mBritish Airways
Deal found 12/1$751
This United Airlines deal was found by Cheapflights users on 11/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/131:34 pmONT - MAD
2 stops17h 26mUnited Airlines
sáb. 12/206:00 amMAD - ONT
2 stops20h 43mUnited Airlines
Deal found 11/30$757
This oojo deal was found by Cheapflights users on 11/30. 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.
sáb. 12/63:04 pmONT - MAD
1 stop33h 21mBritish Airways
dom. 12/141:00 pmMAD - ONT
1 stop17h 07mBritish Airways
Deal found 11/30$831

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 diciembre 1, 2025.

Round-trip from

$424
(oojo)

One-way from

$253
(oojo)

Popular in

June

Cheapest in

February

Average price

$957
From Ontario to Spain
Search Deals
One-way flight from Ontario to Spain
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($199 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% 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 diciembre 1, 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

OntarioValencia

ONT - VLC

ONTVLC

Ontario

mar. 2/24

5:06 pm-11:15 am

2 stops33h 09m

Valencia

jue. 3/12

12:00 pm-11:59 pm

2 stops19h 59m

$424

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

mar. 2/3

10:30 pm-9:15 am

1 stop25h 45m

Madrid Barajas

mar. 2/10

11:15 am-9:05 pm

1 stop18h 50m

$443

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

dom. 2/15

10:20 pm-9:15 am

1 stop25h 55m

Madrid Barajas

vie. 2/27

11:15 am-9:05 pm

1 stop18h 50m

$443

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

dom. 2/1

10:30 pm-9:15 am

1 stop25h 45m

Madrid Barajas

mar. 2/10

11:15 am-9:05 pm

1 stop18h 50m

$443

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

dom. 2/1

10:30 pm-9:15 am

1 stop25h 45m

Madrid Barajas

jue. 2/12

11:15 am-9:05 pm

1 stop18h 50m

$443

OntarioValencia

ONT - VLC

ONTVLC

Ontario

mar. 1/20

4:45 pm-11:15 am

2 stops33h 30m

Valencia

dom. 1/25

8:25 pm-10:48 pm

2 stops35h 23m

$449

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

vie. 1/16

7:16 am-4:30 pm

2 stops24h 14m

Malaga

mié. 2/4

12:20 pm-10:48 pm

2 stops43h 28m

$450

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

vie. 1/16

7:16 am-4:30 pm

2 stops24h 14m

Malaga

mar. 2/3

5:50 pm-6:45 pm

2 stops33h 55m

$450

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

sáb. 1/17

10:30 pm-11:30 am

2 stops28h 00m

Madrid Barajas

mar. 2/3

11:15 am-9:05 pm

1 stop18h 50m

$462

OntarioBilbao

ONT - BIO

ONTBIO

Ontario

vie. 1/30

7:30 am-5:20 pm

2 stops24h 50m

Bilbao

mar. 2/3

7:25 am-10:44 pm

2 stops24h 19m

$481

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

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, November is the cheapest month in which you can book a flight from Ontario to Spain (average of $344). Flying from Ontario to Spain in June is currently the most expensive (average of $610). 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 diciembre 1, 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 diciembre 1, 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
8,010 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
8,010 reviews
Delta
7.9
Good
8,010 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
9,057 reviews
Delta
7.9
Good
8,010 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
11,039 reviews
Delta
7.9
Good
8,010 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
3,036 reviews
Delta
7.9
Good
8,010 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
7,548 reviews
Delta
7.9
Good
8,010 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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, Delta, and United Airlines fly from Ontario to Spain in about 25h 45m. The time it takes to get you to your destination can typically vary by up to 7h 24m. 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 cheapest airlines to fly from Ontario to Spain one-way?

    $253 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $276 and $379, respectively.

  • 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, November is the cheapest month in which you can book a flight from Ontario to Spain (average of $344). Flying from Ontario to Spain in June is currently the most expensive (average of $610). 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 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 diciembre 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$444Average$798FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$489Average$899FlexibilityNo cancel feeOn-time70%
IberiaCheapest$496Average$884FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$595Average$1,174FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$688Average$1,100FlexibilityNo cancel feeOn-time69%

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