What is the cheapest airline that flies from Ontario to Spain?

United Airlines, British Airways, and Iberia are the most popular carriers operating from Ontario to Spain

What airlines fly to Spain?

Iberia, British Airways and LEVEL are the top three most popular airlines that fly to Spain from Ontario according to our data. Iberia is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Spain. Keep in mind that there are 24 different airlines that fly to Spain on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Spain?

Prices for flights from Ontario Airport to Spain are updated daily.

How many operators does momondo search for flights from Ontario Airport to Spain?

The number of operators available for flights from Ontario Airport to Spain is 5 as of March 2026.

How old do you have to be to fly from Ontario Airport to Spain?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Spain.

What documentation or ID do you need to fly to Spain?

The travel and health documents required for your trip to Spain can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Spain. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$323 Cheap Flights from Ontario to Spain in 2026

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Find the cheapest flights from Ontario to Spain

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:59 pm - 9:05 am

ONT

MAD

24h 06m

1 stop

10:25 am - 8:27 pm

MAD

ONT

19h 02m

1 stop

$640British Airways

Tue, Apr 14 - Tue, Apr 21

7:30 am - 2:25 pm

ONT

MAD

21h 55m

1 stop

3:55 pm - 11:46 pm

MAD

ONT

16h 51m

1 stop

$645Multiple Airlines

Wed, Apr 8 - Thu, Apr 23

5:10 am - 8:05 am

ONT

MAD

17h 55m

2 stops

10:50 am - 8:36 pm

MAD

ONT

18h 46m

2 stops

$649United Airlines

Tue, Apr 14 - Tue, Apr 28

7:00 am - 4:45 pm

ONT

MAD

24h 45m

2 stops

6:05 am - 10:45 pm

MAD

ONT

25h 40m

2 stops

$652United Airlines

Wed, Apr 8 - Thu, Apr 23

5:09 pm - 7:35 pm

ONT

MAD

17h 26m

2 stops

1:05 pm - 11:44 pm

MAD

ONT

19h 39m

2 stops

$655Delta

Wed, Apr 8 - Wed, Apr 22

5:09 pm - 9:55 am

ONT

MAD

31h 46m

2 stops

12:45 pm - 9:00 pm

MAD

ONT

17h 15m

1 stop

$660Delta

Tue, Apr 7 - Fri, Apr 24

10:59 am - 8:55 pm

ONT

ALC

24h 56m

2 stops

9:30 pm - 11:46 pm

ALC

ONT

35h 16m

2 stops

$865Iberia

Tue, Apr 28 - Tue, May 5

10:59 am - 1:05 pm

ONT

ALC

17h 06m

2 stops

1:40 pm - 11:46 pm

ALC

ONT

19h 06m

2 stops

$906Iberia

Tue, Apr 21 - Fri, May 15

11:59 pm - 7:35 am

ONT

BCN

22h 36m

1 stop

10:30 am - 8:54 pm

BCN

ONT

19h 24m

2 stops

$948American Airlines

Sun, Apr 12 - Tue, Apr 28

10:59 am - 1:00 pm

ONT

LCG

17h 01m

2 stops

1:40 pm - 11:46 pm

LCG

ONT

19h 06m

2 stops

$1,020American Airlines

Mon, Apr 20 - Mon, Apr 27

United Airlines flights from Ontario to Spain

Our best United Airlines deals on Ontario to Spain flight tickets

United Airlines

Apr 14

ONT5:10 amOntario

17h 55m

2 stops

MAD8:05 amMadrid Barajas

Apr 28

MAD10:50 amMadrid Barajas

18h 46m

2 stops

ONT8:36 pmOntario

$649

United Airlines

Apr 8

ONT7:00 amOntario

24h 45m

2 stops

MAD4:45 pmMadrid Barajas

Apr 23

MAD6:05 amMadrid Barajas

25h 40m

2 stops

ONT10:45 pmOntario

$652

United Airlines

Apr 11

ONT1:34 pmOntario

32h 16m

2 stops

MAD6:50 amMadrid Barajas

Apr 21

MAD5:55 amMadrid Barajas

25h 36m

2 stops

ONT10:31 pmOntario

$654

British Airways flights from Ontario to Spain

Our best British Airways deals on Ontario to Spain flight tickets

British Airways

Apr 14

ONT11:59 pmOntario

24h 06m

1 stop

MAD9:05 amMadrid Barajas

Apr 21

MAD10:25 amMadrid Barajas

19h 02m

1 stop

ONT8:27 pmOntario

$640

British Airways

Apr 7

ONT11:59 pmOntario

24h 06m

1 stop

MAD9:05 amMadrid Barajas

Apr 15

MAD3:55 pmMadrid Barajas

16h 51m

1 stop

ONT11:46 pmOntario

$675

British Airways

Apr 14

ONT4:52 pmOntario

31h 48m

2 stops

MAD9:40 amMadrid Barajas

Apr 21

MAD10:25 amMadrid Barajas

19h 02m

1 stop

ONT8:27 pmOntario

$679

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/14

11:59 pm-9:05 am

1 stop24h 06m

Madrid Barajas

Tue 4/21

10:25 am-8:27 pm

1 stop19h 02m

$640

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/8

7:30 am-2:25 pm

1 stop21h 55m

Madrid Barajas

Thu 4/23

3:55 pm-11:46 pm

1 stop16h 51m

$645

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/14

5:10 am-8:05 am

2 stops17h 55m

Madrid Barajas

Tue 4/28

10:50 am-8:36 pm

2 stops18h 46m

$649

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/8

7:00 am-4:45 pm

2 stops24h 45m

Madrid Barajas

Thu 4/23

6:05 am-10:45 pm

2 stops25h 40m

$652

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/8

5:09 pm-7:35 pm

2 stops17h 26m

Madrid Barajas

Wed 4/22

1:05 pm-11:44 pm

2 stops19h 39m

$655

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/7

5:09 pm-9:55 am

2 stops31h 46m

Madrid Barajas

Fri 4/24

12:45 pm-9:00 pm

1 stop17h 15m

$660

OntarioAlicante

ONT - ALC

ONTALC

Ontario

Tue 4/28

10:59 am-8:55 pm

2 stops24h 56m

Alicante

Tue 5/5

9:30 pm-11:46 pm

2 stops35h 16m

$865

OntarioAlicante

ONT - ALC

ONTALC

Ontario

Tue 4/21

10:59 am-1:05 pm

2 stops17h 06m

Alicante

Fri 5/15

1:40 pm-11:46 pm

2 stops19h 06m

$906

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 4/12

11:59 pm-7:35 am

1 stop22h 36m

Barcelona-El Prat

Tue 4/28

10:30 am-8:54 pm

2 stops19h 24m

$948

Quickest round-trip

OntarioA Coruña

ONT - LCG

ONTLCG

Ontario

Mon 4/20

10:59 am-1:00 pm

2 stops17h 01m

A Coruña

Mon 4/27

1:40 pm-11:46 pm

2 stops19h 06m

$1,020

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Spain

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Ontario to Spain flights?

You could potentially save up to 63% on your flight if you consider stops on a Ontario to Spain flight.

Cheap Ontario to Spain flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Spain

Fastest flight time	13h 39m
Direct flights	None

The fastest flight from Ontario to Spain takes 13h 39m

There are no direct flights from Ontario to Spain. There are no popular flight routes from Ontario to Spain.

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Spain?
Prices for flights from Ontario Airport to Spain are updated daily.
How many operators does momondo search for flights from Ontario Airport to Spain?
The number of operators available for flights from Ontario Airport to Spain is 5 as of March 2026.
How old do you have to be to fly from Ontario Airport to Spain?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Spain.
What documentation or ID do you need to fly to Spain?
The travel and health documents required for your trip to Spain can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Spain. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Spain

Compare and see reviews for airlines that fly from Ontario to Spain with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.1 11,466 reviews	Search American Airlines flights
Delta	PriceFrom $444	Free Cancellation	Rating 7.9 8,288 reviews	Search Delta flights
Iberia	PriceFrom $497	Free Cancellation	Rating 7.0 3,137 reviews	Search Iberia flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 7,797 reviews	Search British Airways flights
United Airlines	PriceFrom $682	Free Cancellation	Rating 7.4 9,431 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Spain?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Spain for you.

Can I find flights from Ontario to Spain with flexible booking policies on momondo?

Yes. All flights to Spain from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Spain?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Spain.

I’m not ready to book a flight from Ontario to Spain right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Spain flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.