What airlines fly to Spain?

Iberia, TAP AIR PORTUGAL and British Airways 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 46% of people opting to fly with this airline when traveling to Spain. Keep in mind that there are 22 different airlines that fly to Spain on a routine basis, so you have a few additional options to choose from.

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

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

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 4 as of October 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.

$341 Cheap Flights from Ontario to Spain in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

7:05 am - 9:45 amONT Ontario-MAD Madrid Barajas

17h 40m1 stop Atlanta Hartsfield-Jackson

12:20 pm - 8:54 pmMAD Madrid Barajas-ONT Ontario

17h 34m1 stop Atlanta Hartsfield-Jackson

$604Multiple Airlines

Mon, Nov 9 - Wed, Nov 25

7:05 am - 9:45 amONT Ontario-MAD Madrid Barajas

17h 40m1 stop Atlanta Hartsfield-Jackson

12:20 pm - 9:55 pmMAD Madrid Barajas-ONT Ontario

18h 35m1 stop Atlanta Hartsfield-Jackson

$612Delta

Wed, Nov 25 - Fri, Dec 11

7:00 am - 12:15 pmONT Ontario-MAD Madrid Barajas

20h 15m2 stops Dallas/Fort Worth London Heathrow

1:30 pm - 9:32 pmMAD Madrid Barajas-ONT Ontario

17h 02m1 stop Dallas/Fort Worth

$741Iberia

Tue, Nov 3 - Thu, Nov 12

7:00 am - 12:15 pmONT Ontario-MAD Madrid Barajas

20h 15m2 stops Dallas/Fort Worth London Heathrow

1:30 pm - 11:46 pmMAD Madrid Barajas-ONT Ontario

19h 16m1 stop Dallas/Fort Worth

$741Iberia

Wed, Nov 4 - Wed, Nov 11

10:30 pm - 5:45 amONT Ontario-MAD Madrid Barajas

22h 15m1 stop Charlotte Douglas

1:00 pm - 10:36 pmMAD Madrid Barajas-ONT Ontario

18h 36m1 stop Dallas/Fort Worth

$744American Airlines

Sat, Nov 7 - Thu, Nov 19

2:09 pm - 6:10 amONT Ontario-MAD Madrid Barajas

31h 01m1 stop Dallas/Fort Worth

1:15 pm - 11:48 pmMAD Madrid Barajas-ONT Ontario

19h 33m2 stops Philadelphia Dallas/Fort Worth

$752American Airlines

Sat, Nov 28 - Fri, Dec 11

6:00 am - 8:05 amONT Ontario-MAD Madrid Barajas

17h 05m1 stop Dallas/Fort Worth

1:00 pm - 11:01 pmMAD Madrid Barajas-ONT Ontario

19h 01m1 stop Charlotte Douglas

$794British Airways

Wed, Nov 11 - Sun, Nov 15

10:38 am - 9:20 amONT Ontario-MAD Madrid Barajas

13h 42m1 stop Dallas/Fort Worth

12:55 am - 9:48 amMAD Madrid Barajas-ONT Ontario

17h 53m1 stop Dallas/Fort Worth

$799British Airways

Fri, Jan 29 - Wed, Feb 3

6:37 pm - 9:55 pmONT Ontario-BIO Bilbao

18h 18m2 stops San Francisco Munich Franz Josef Strauss

6:45 am - 5:36 pmBIO Bilbao-ONT Ontario

19h 51m2 stops Frankfurt am Main San Francisco

$859United Airlines

Sun, Nov 29 - Tue, Dec 8

5:00 am - 9:35 amONT Ontario-BCN Barcelona-El Prat

19h 35m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

1:35 pm - 6:22 pmBCN Barcelona-El Prat-ONT Ontario

37h 47m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$861United Airlines

Tue, Feb 2 - Fri, Feb 12

Cheap last minute flights

Enter your travel dates to find the best prices.

12:16 pm - 12:15 pmONT Ontario-MAD Madrid Barajas

14h 59m1 stop Atlanta Hartsfield-Jackson

12:20 pm - 10:00 amMAD Madrid Barajas-ONT Ontario

30h 40m1 stop Atlanta Hartsfield-Jackson

$618Delta

Mon, Oct 12 - Wed, Dec 23

12:16 pm - 12:15 pmONT Ontario-MAD Madrid Barajas

14h 59m1 stop Atlanta Hartsfield-Jackson

12:45 pm - 11:55 pmMAD Madrid Barajas-ONT Ontario

20h 10m2 stops New York John F Kennedy Intl Salt Lake City

$667Delta

Fri, Oct 16 - Fri, Oct 23

12:16 pm - 12:15 pmONT Ontario-MAD Madrid Barajas

14h 59m1 stop Atlanta Hartsfield-Jackson

12:20 pm - 9:57 pmMAD Madrid Barajas-ONT Ontario

18h 37m1 stop Atlanta Hartsfield-Jackson

$847Delta

Tue, Oct 13 - Thu, Nov 19

10:25 am - 9:05 amONT Ontario-MAD Madrid Barajas

13h 40m1 stop Dallas/Fort Worth

1:00 pm - 10:22 pmMAD Madrid Barajas-ONT Ontario

18h 22m1 stop Dallas/Fort Worth

$930Iberia

Mon, Oct 12 - Mon, Dec 21

10:25 am - 9:05 amONT Ontario-MAD Madrid Barajas

13h 40m1 stop Dallas/Fort Worth

1:00 pm - 10:22 pmMAD Madrid Barajas-ONT Ontario

18h 22m1 stop Dallas/Fort Worth

$930Iberia

Tue, Oct 13 - Mon, Dec 21

11:10 am - 11:25 pmONT Ontario-BIO Bilbao

27h 15m2 stops San Francisco Munich Franz Josef Strauss

2:10 pm - 10:49 pmBIO Bilbao-ONT Ontario

41h 39m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,025United Airlines

Tue, Oct 13 - Mon, Oct 19

11:10 am - 5:55 pmONT Ontario-BIO Bilbao

21h 45m2 stops San Francisco Munich Franz Josef Strauss

6:50 am - 8:31 pmBIO Bilbao-ONT Ontario

22h 41m3 stops Frankfurt am Main Seattle/Tacoma Intl San Francisco

$1,043United Airlines

Tue, Oct 13 - Mon, Oct 19

11:59 pm - 9:05 amONT Ontario-MAD Madrid Barajas

24h 06m1 stop Dallas/Fort Worth

1:00 pm - 11:01 pmMAD Madrid Barajas-ONT Ontario

19h 01m1 stop Charlotte Douglas

$1,087British Airways

Fri, Oct 16 - Sun, Nov 1

10:25 am - 9:05 amONT Ontario-MAD Madrid Barajas

13h 40m1 stop Dallas/Fort Worth

10:25 am - 6:44 pmMAD Madrid Barajas-ONT Ontario

17h 19m1 stop Dallas/Fort Worth

$1,112British Airways

Mon, Oct 12 - Thu, Oct 22

10:25 am - 9:05 amONT Ontario-MAD Madrid Barajas

13h 40m1 stop Dallas/Fort Worth

12:40 pm - 7:54 pmMAD Madrid Barajas-ONT Ontario

16h 14m1 stop Charlotte Douglas

$1,311American Airlines

Sun, Oct 11 - Tue, Oct 13

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Delta flights from Ontario to Spain

Our best Delta deals on Ontario to Spain flight tickets

Delta

Nov 15

ONT7:05 amOntario

17h 40m

1 stop

MAD9:45 amMadrid Barajas

Dec 8

MAD12:20 pmMadrid Barajas

17h 38m

1 stop

ONT8:58 pmOntario

$612

Delta

Nov 14

ONT5:56 pmOntario

28h 24m

2 stops

MAD7:20 amMadrid Barajas

Dec 9

MAD12:20 pmMadrid Barajas

17h 38m

1 stop

ONT8:58 pmOntario

$617

Delta

Nov 28

ONT11:06 pmOntario

25h 39m

1 stop

MAD9:45 amMadrid Barajas

Dec 10

MAD12:20 pmMadrid Barajas

18h 35m

1 stop

ONT9:55 pmOntario

$618

KLM flights from Ontario to Spain

Our best KLM deals on Ontario to Spain flight tickets

KLM

Jan 15

ONT12:00 pmOntario

14h 45m

1 stop

MAD11:45 amMadrid Barajas

Jan 23

MAD1:55 pmMadrid Barajas

17h 19m

1 stop

ONT10:14 pmOntario

$717

KLM

Nov 10

ONT7:05 amOntario

17h 40m

1 stop

MAD9:45 amMadrid Barajas

Nov 19

MAD12:20 pmMadrid Barajas

18h 37m

1 stop

ONT9:57 pmOntario

$723

KLM

Oct 16

ONT12:16 pmOntario

14h 59m

1 stop

MAD12:15 pmMadrid Barajas

Oct 22

MAD9:50 amMadrid Barajas

17h 32m

1 stop

ONT6:22 pmOntario

$854

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Mon 11/9

7:05 am-9:45 am

1 stop17h 40m

Madrid Barajas

Wed 11/25

12:20 pm-8:54 pm

1 stop17h 34m

$604

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 11/25

7:05 am-9:45 am

1 stop17h 40m

Madrid Barajas

Fri 12/11

12:20 pm-9:55 pm

1 stop18h 35m

$612

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Tue 11/3

7:00 am-12:15 pm

2 stops20h 15m

Madrid Barajas

Thu 11/12

1:30 pm-9:32 pm

1 stop17h 02m

$741

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 11/4

7:00 am-12:15 pm

2 stops20h 15m

Madrid Barajas

Wed 11/11

1:30 pm-11:46 pm

1 stop19h 16m

$741

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sat 11/7

10:30 pm-5:45 am

1 stop22h 15m

Madrid Barajas

Thu 11/19

1:00 pm-10:36 pm

1 stop18h 36m

$744

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sat 11/28

2:09 pm-6:10 am

1 stop31h 01m

Madrid Barajas

Fri 12/11

1:15 pm-11:48 pm

2 stops19h 33m

$752

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 11/11

6:00 am-8:05 am

1 stop17h 05m

Madrid Barajas

Sun 11/15

1:00 pm-11:01 pm

1 stop19h 01m

$794

Quickest round-trip

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Fri 1/29

10:38 am-9:20 am

1 stop13h 42m

Madrid Barajas

Wed 2/3

12:55 am-9:48 am

1 stop17h 53m

$799

OntarioBilbao

ONT Ontario - BIO Bilbao

ONTBIO

Ontario

Sun 11/29

6:37 pm-9:55 pm

2 stops18h 18m

Bilbao

Tue 12/8

6:45 am-5:36 pm

2 stops19h 51m

$859

OntarioBarcelona

ONT Ontario - BCN Barcelona-El Prat

ONTBCN

Ontario

Tue 2/2

5:00 am-9:35 am

2 stops19h 35m

Barcelona-El Prat

Fri 2/12

1:35 pm-6:22 pm

2 stops37h 47m

$861

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

What is the cheapest month to fly to Spain?

If you don’t want to visit Spain in January, then you should wait until February to fly from Ontario, when ticket prices are also cheap, with an average price of $640.

Can stopping save me money on Ontario to Spain flights?

You could potentially save up to 43% 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

Best Price Found	$341
Fastest flight time	13h 31m
Direct flights	None

The best one-way flight to Spain from Ontario in the past 72 hours is $341. The best round-trip flight deal from Ontario to Spain found on momondo in the last 72 hours is $604.

The fastest flight from Ontario to Spain takes 13h 31m

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

Search flight deals

Frequently asked questions about flying from Ontario to Spain

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 4 as of October 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 7.0 12,153 reviews	Search American Airlines flights
British Airways	PriceFrom $474	Free Cancellation	Rating 6.7 8,255 reviews	Search British Airways flights
Iberia	PriceFrom $539	Free Cancellation	Rating 7.0 3,250 reviews	Search Iberia flights
United Airlines	PriceFrom $893	Free Cancellation	Rating 7.4 10,334 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.