Spain

$310+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MAD
Apr 9 — Apr 161
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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 March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/5. 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.
Mon 4/205:10 am
ONT
-
MAD
2 stops18h 50m
United Airlines
Wed 4/2912:45 pm
MAD
-
ONT
2 stops42h 50m
United Airlines
Deal found 3/5$579
This oojo deal was found by Cheapflights users on 3/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:59 pm
ONT
-
MAD
1 stop24h 06m
British Airways
Wed 4/2210:25 am
MAD
-
ONT
1 stop19h 42m
British Airways
Deal found 3/5$590
This Expedia deal was found by Cheapflights users on 3/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:31 pm
ONT
-
MAD
2 stops17h 19m
British Airways
Tue 10/203:55 pm
MAD
-
ONT
1 stop17h 20m
British Airways
Deal found 3/9$591
This Gotogate deal was found by Cheapflights users on 3/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:00 pm
ONT
-
MAD
2 stops34h 00m
Air Canada
Wed 11/111:35 pm
MAD
-
ONT
2 stops31h 45m
Air Canada
Deal found 3/7$592
This American Airlines deal was found by Cheapflights users on 3/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:29 pm
ONT
-
MAD
1 stop21h 01m
American Airlines
Wed 4/293:55 pm
MAD
-
ONT
1 stop16h 51m
American Airlines
Deal found 3/5$595
This KLM deal was found by Cheapflights users on 3/6. 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.
Wed 4/2212:49 pm
ONT
-
MAD
1 stop14h 26m
KLM
Tue 4/287:05 am
MAD
-
ONT
2 stops18h 20m
KLM
Deal found 3/6$596
This Delta deal was found by Cheapflights users on 3/9. 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.
Tue 4/1411:53 am
ONT
-
MAD
2 stops22h 22m
Delta
Fri 4/2412:45 pm
MAD
-
ONT
1 stop17h 15m
Delta
Deal found 3/9$599
This Finnair deal was found by Cheapflights users on 3/6. 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 4/216:00 am
ONT
-
MAD
1 stop23h 25m
Multiple Airlines
Tue 4/283:55 pm
MAD
-
ONT
1 stop27h 14m
Multiple Airlines
Deal found 3/6$600
This Delta deal was found by Cheapflights users on 3/6. 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.
Wed 4/226:00 am
ONT
-
MAD
2 stops24h 35m
Delta
Tue 4/282:35 pm
MAD
-
ONT
2 stops29h 38m
Delta
Deal found 3/6$603
This American Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 4/217:30 am
ONT
-
MAD
2 stops17h 05m
American Airlines
Tue 4/283:55 pm
MAD
-
ONT
1 stop27h 14m
American Airlines
Deal found 3/6$605
This Air Canada deal was found by Cheapflights users on 3/7. 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.
Mon 10/266:53 pm
ONT
-
MAD
3 stops28h 07m
Multiple Airlines
Wed 11/111:35 pm
MAD
-
ONT
2 stops31h 45m
Multiple Airlines
Deal found 3/7$607
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/146:05 am
ONT
-
MAD
2 stops17h 00m
United Airlines
Fri 4/2411:15 am
MAD
-
ONT
3 stops39h 32m
United Airlines
Deal found 3/9$616

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 March 10, 2026.

Round-trip from

$579
(United Airlines)

One-way from

$310
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$965
From Ontario to Spain
One-way flight from Ontario to Spain
Highest demand for flights based on searches. 17% potential increase in price ($224 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Average for round-trip flights in March 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 March 10, 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

Tue 4/21

6:00 am-2:25 pm

1 stop23h 25m

Madrid Barajas

Tue 4/28

3:55 pm-10:09 am

1 stop27h 14m

$600

OntarioAlicante

ONT - ALC

ONTALC

Ontario

Tue 4/21

7:30 am-3:25 pm

2 stops22h 55m

Alicante

Mon 4/27

2:05 am-6:37 pm

2 stops25h 32m

$707

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Tue 4/14

12:19 pm-7:35 pm

2 stops22h 16m

Valencia

Tue 4/21

8:30 pm-4:22 pm

2 stops52h 52m

$730

OntarioIbiza

ONT - IBZ

ONTIBZ

Ontario

Wed 8/12

8:15 am-5:15 pm

2 stops24h 00m

Ibiza

Wed 8/19

6:45 pm-6:25 pm

2 stops32h 40m

$825

OntarioIbiza

ONT - IBZ

ONTIBZ

Ontario

Sun 4/26

7:30 am-4:25 pm

2 stops23h 55m

Ibiza

Sun 5/3

6:15 pm-9:59 pm

2 stops36h 44m

$826

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 5/5

7:00 am-8:05 am

2 stops16h 05m

Madrid Barajas

Thu 5/14

11:15 am-10:35 pm

2 stops20h 20m

$829

OntarioMálaga

ONT - AGP

ONTAGP

Ontario

Tue 4/14

7:30 am-4:50 pm

2 stops24h 20m

Malaga

Wed 5/6

5:35 pm-10:36 pm

2 stops38h 01m

$829

OntarioValencia

ONT - VLC

ONTVLC

Ontario

Tue 4/7

12:19 pm-7:35 pm

2 stops22h 16m

Valencia

Tue 4/21

8:30 pm-4:22 pm

2 stops52h 52m

$834

OntarioPalma de Mallorca

ONT - PMI

ONTPMI

Ontario

Tue 5/5

4:52 pm-8:10 pm

2 stops42h 18m

Palma de Mallorca Son Sant Joan

Tue 5/12

6:30 am-8:27 pm

2 stops22h 57m

$835

OntarioAlicante

ONT - ALC

ONTALC

Ontario

Mon 4/6

6:00 am-8:40 pm

2 stops29h 40m

Alicante

Wed 4/22

10:25 am-10:37 pm

2 stops21h 12m

$839

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $334). Flying from Ontario to Spain in June is currently the most expensive (average of $607). 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 March 10, 2026.
Read through reviews of airlines operating flights from Ontario to Spain, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

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.

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

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.

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

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.

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

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.

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

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.

Comfort

7.9

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

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, United Airlines, and KLM fly from Ontario to Spain in about 22h 16m. The time it takes to get you to your destination can typically vary by up to 7h 24m. Airlines will cover a distance of 5958 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?

    $379 is the cheapest one-way deal found within the past few days, from American 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?

  • 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 $607). 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$439Average$936FlexibilityNo cancel feeOn-time71%
DeltaCheapest$444Average$873FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$497Average$862FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$504Average$960FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$682Average$1,102FlexibilityNo cancel feeOn-time69%

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