Which layover airport has the shortest connection time from Ontario to Madrid?

Dallas (DFW) has the shortest average layover time for this route: 2h 28m.

What is the cheapest airline that flies from Ontario to Madrid Barajas?

KLM, United Airlines, and Delta are the most popular carriers operating from Ontario to Madrid Barajas

What airlines fly to Madrid?

Iberia, TAP AIR PORTUGAL and British Airways are the top three most popular airlines that fly to Madrid from Ontario according to our data. Iberia is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Madrid. Keep in mind that there are 21 different airlines that fly to Madrid on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Ontario to Madrid?

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 15h 08m.

Which layover airport offers the lowest fares from Ontario to Madrid?

Flights via Dallas (DFW) offer the lowest average round-trip price of $755.

Which airport is the most popular layover for flights between Ontario and Madrid?

Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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

Prices for flights from Ontario Airport to Madrid Barajas Airport are updated daily.

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

As of August 2026, there are 3 operators available to choose from for flights from Ontario Airport to Madrid Barajas Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Madrid Barajas Airport.

What documentation or ID do you need to fly to Madrid Barajas Airport?

The travel and health documents required for your trip to Madrid Barajas Airport 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 Madrid Barajas Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$291 Cheap Flights from Ontario to Madrid in 2026

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7:00 am - 7:45 amONT Ontario-MAD Madrid Barajas

15h 45m1 stop Dallas/Fort Worth

11:05 am - 11:43 pmMAD Madrid Barajas-ONT Ontario

21h 38m1 stop Dallas/Fort Worth

$724Iberia

Wed, Nov 4 - Wed, Nov 11

7:00 am - 7:45 amONT Ontario-MAD Madrid Barajas

15h 45m1 stop Dallas/Fort Worth

10:35 am - 11:43 pmMAD Madrid Barajas-ONT Ontario

22h 08m2 stops London Heathrow Dallas/Fort Worth

$735Iberia

Wed, Nov 4 - Wed, Nov 11

7:00 am - 9:55 amONT Ontario-MAD Madrid Barajas

17h 55m1 stop Atlanta Hartsfield-Jackson

11:55 am - 8:46 pmMAD Madrid Barajas-ONT Ontario

17h 51m1 stop Atlanta Hartsfield-Jackson

$741Delta

Sun, Nov 15 - Wed, Dec 2

7:00 am - 9:55 amONT Ontario-MAD Madrid Barajas

17h 55m1 stop Atlanta Hartsfield-Jackson

11:55 am - 8:46 pmMAD Madrid Barajas-ONT Ontario

17h 51m1 stop Atlanta Hartsfield-Jackson

$741Delta

Mon, Nov 16 - Wed, Dec 2

12:00 pm - 12:15 pmONT Ontario-MAD Madrid Barajas

15h 15m1 stop Atlanta Hartsfield-Jackson

9:50 am - 6:30 pmMAD Madrid Barajas-ONT Ontario

17h 40m1 stop Atlanta Hartsfield-Jackson

$741KLM

Wed, Aug 19 - Thu, Sep 3

2:22 pm - 2:25 pmONT Ontario-MAD Madrid Barajas

15h 03m1 stop Dallas/Fort Worth

3:55 pm - 11:52 pmMAD Madrid Barajas-ONT Ontario

16h 57m1 stop Dallas/Fort Worth

$757Iberia

Tue, Oct 13 - Thu, Oct 22

6:30 am - 9:20 amONT Ontario-MAD Madrid Barajas

17h 50m1 stop Dallas/Fort Worth

12:40 pm - 9:07 pmMAD Madrid Barajas-ONT Ontario

17h 27m1 stop Charlotte Douglas

$761British Airways

Wed, Dec 2 - Wed, Dec 9

6:00 am - 9:20 amONT Ontario-MAD Madrid Barajas

18h 20m1 stop Dallas/Fort Worth

1:00 pm - 10:49 pmMAD Madrid Barajas-ONT Ontario

18h 49m1 stop Dallas/Fort Worth

$761British Airways

Tue, Jan 12 - Wed, Jan 20

6:15 am - 8:20 amONT Ontario-MAD Madrid Barajas

17h 05m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

3:55 pm - 9:29 amMAD Madrid Barajas-ONT Ontario

26h 34m1 stop Dallas/Fort Worth

$790American Airlines

Sun, Sep 20 - Wed, Sep 30

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

13h 40m1 stop Dallas/Fort Worth

11:05 am - 6:47 pmMAD Madrid Barajas-ONT Ontario

16h 42m1 stop Dallas/Fort Worth

$825American Airlines

Tue, Sep 22 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

6:10 am - 8:05 amONT Ontario-MAD Madrid Barajas

16h 55m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

10:50 am - 8:58 pmMAD Madrid Barajas-ONT Ontario

19h 08m2 stops Newark Denver Intl

$940United Airlines

Mon, Aug 10 - Fri, Oct 16

6:10 am - 8:05 amONT Ontario-MAD Madrid Barajas

16h 55m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

10:50 am - 9:59 pmMAD Madrid Barajas-ONT Ontario

20h 09m2 stops Newark Houston George Bush Intcntl

$940United Airlines

Mon, Aug 10 - Fri, Oct 16

6:10 am - 8:05 amONT Ontario-MAD Madrid Barajas

16h 55m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

10:50 am - 8:58 pmMAD Madrid Barajas-ONT Ontario

19h 08m2 stops Newark Denver Intl

$940United Airlines

Mon, Aug 10 - Tue, Oct 13

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

17h 00m1 stop Dallas/Fort Worth

12:20 pm - 11:52 pmMAD Madrid Barajas-ONT Ontario

20h 32m1 stop Dallas/Fort Worth

$1,050Iberia

Sun, Aug 9 - Thu, Oct 15

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

17h 00m1 stop Dallas/Fort Worth

12:05 pm - 11:52 pmMAD Madrid Barajas-ONT Ontario

20h 47m2 stops London Heathrow Dallas/Fort Worth

$1,090Iberia

Sun, Aug 9 - Thu, Oct 15

10:29 am - 9:05 amONT Ontario-MAD Madrid Barajas

13h 36m1 stop Dallas/Fort Worth

3:55 pm - 10:59 pmMAD Madrid Barajas-ONT Ontario

16h 04m1 stop Dallas/Fort Worth

$1,119British Airways

Mon, Aug 10 - Wed, Aug 19

10:29 am - 9:05 amONT Ontario-MAD Madrid Barajas

13h 36m1 stop Dallas/Fort Worth

3:55 pm - 10:59 pmMAD Madrid Barajas-ONT Ontario

16h 04m1 stop Dallas/Fort Worth

$1,121American Airlines

Thu, Aug 6 - Wed, Sep 2

12:33 pm - 3:50 pmONT Ontario-MAD Madrid Barajas

18h 17m2 stops Dallas/Fort Worth London Heathrow

3:55 pm - 11:52 pmMAD Madrid Barajas-ONT Ontario

16h 57m1 stop Dallas/Fort Worth

$1,135Iberia

Sun, Aug 9 - Sat, Oct 17

2:43 pm - 9:05 amONT Ontario-MAD Madrid Barajas

33h 22m1 stop Dallas/Fort Worth

12:40 pm - 10:59 pmMAD Madrid Barajas-ONT Ontario

19h 19m1 stop Dallas/Fort Worth

$1,145British Airways

Sat, Aug 8 - Sun, Aug 23

6:00 am - 9:05 amONT Ontario-MAD Madrid Barajas

18h 05m1 stop Dallas/Fort Worth

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

17h 19m1 stop Dallas/Fort Worth

$1,149American Airlines

Sun, Aug 9 - Wed, Oct 21

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United Airlines flights from Ontario to Madrid

Our best United Airlines deals on Ontario to Madrid flight tickets

United Airlines

Nov 4

ONT5:00 amOntario

18h 00m

2 stops

MAD8:00 amMadrid Barajas

Nov 18

MAD1:25 pmMadrid Barajas

38h 22m

2 stops

ONT6:47 pmOntario

$747

United Airlines

Jan 11

ONT6:00 amOntario

18h 15m

2 stops

MAD9:15 amMadrid Barajas

Jan 19

MAD1:25 pmMadrid Barajas

38h 19m

2 stops

ONT6:44 pmOntario

$748

United Airlines

Sep 21

ONT7:00 amOntario

16h 05m

2 stops

MAD8:05 amMadrid Barajas

Oct 6

MAD1:30 pmMadrid Barajas

42h 19m

2 stops

ONT10:49 pmOntario

$753

Delta flights from Ontario to Madrid

Our best Delta deals on Ontario to Madrid flight tickets

Delta

Dec 2

ONT7:00 amOntario

17h 55m

1 stop

MAD9:55 amMadrid Barajas

Dec 29

MAD6:05 amMadrid Barajas

19h 51m

2 stops

ONT4:56 pmOntario

$742

Delta

Nov 29

ONT1:25 pmOntario

43h 20m

2 stops

MAD5:45 pmMadrid Barajas

Dec 31

MAD6:05 amMadrid Barajas

26h 43m

2 stops

ONT11:48 pmOntario

$746

Delta

Dec 2

ONT12:22 pmOntario

36h 33m

2 stops

MAD9:55 amMadrid Barajas

Dec 31

MAD6:05 amMadrid Barajas

26h 43m

2 stops

ONT11:48 pmOntario

$750

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 11/4

7:00 am-7:45 am

1 stop15h 45m

Madrid Barajas

Wed 11/11

11:05 am-11:43 pm

1 stop21h 38m

$724

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 11/4

7:00 am-7:45 am

1 stop15h 45m

Madrid Barajas

Wed 11/11

10:35 am-11:43 pm

2 stops22h 08m

$735

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sun 11/15

7:00 am-9:55 am

1 stop17h 55m

Madrid Barajas

Wed 12/2

11:55 am-8:46 pm

1 stop17h 51m

$741

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Mon 11/16

7:00 am-9:55 am

1 stop17h 55m

Madrid Barajas

Wed 12/2

11:55 am-8:46 pm

1 stop17h 51m

$741

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 8/19

12:00 pm-12:15 pm

1 stop15h 15m

Madrid Barajas

Thu 9/3

9:50 am-6:30 pm

1 stop17h 40m

$741

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Tue 10/13

2:22 pm-2:25 pm

1 stop15h 03m

Madrid Barajas

Thu 10/22

3:55 pm-11:52 pm

1 stop16h 57m

$757

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 12/2

6:30 am-9:20 am

1 stop17h 50m

Madrid Barajas

Wed 12/9

12:40 pm-9:07 pm

1 stop17h 27m

$761

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Tue 1/12

6:00 am-9:20 am

1 stop18h 20m

Madrid Barajas

Wed 1/20

1:00 pm-10:49 pm

1 stop18h 49m

$761

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sun 9/20

6:15 am-8:20 am

2 stops17h 05m

Madrid Barajas

Wed 9/30

3:55 pm-9:29 am

1 stop26h 34m

$790

Quickest round-trip

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Tue 9/22

10:25 am-9:05 am

1 stop13h 40m

Madrid Barajas

Wed 11/18

11:05 am-6:47 pm

1 stop16h 42m

$825

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 Madrid

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

Layovers

What is the cheapest month to fly to Madrid?

The month of August is, on average, the cheapest month to fly to Madrid from Ontario, with most prices found around $490. If you don’t want to visit Madrid in August, then you should wait until February to fly from Ontario, when ticket prices are also cheap, with an average price of $539.

What is the cheapest day to depart on your flight to Madrid?

The cheapest day to depart on your flight to Madrid is on a Sunday when prices can be found for as low as $860. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Madrid on Saturday is $1,186.

What is the cheapest time of day to depart on your flight to Madrid?

Flying to Madrid from Ontario in the evening is the least expensive time of day to depart. momondo users have found prices as low as $808 when looking at flights departing in the evening. Flights to Madrid are more costly in the afternoon, with an average ticket price of $984. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Ontario to Madrid flights?

You could potentially save up to 64% on your flight if you consider stops on a Ontario to Madrid flight.

When to book flights from Ontario to Madrid

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Madrid according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Madrid (ONT to MAD) flight deals and tips

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

Fastest flight time	13h 22m
Direct flights	None

The fastest flight from Ontario to Madrid takes 13h 22m

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

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Frequently asked questions about flying from Ontario to Madrid

How far is Ontario to Madrid Barajas by plane?
A flight from Ontario to Madrid Barajas will travel around 5789.5 mi. 13h 22m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Madrid Barajas Airport?
Prices for flights from Ontario Airport to Madrid Barajas Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Madrid Barajas Airport?
As of August 2026, there are 3 operators available to choose from for flights from Ontario Airport to Madrid Barajas Airport.
How old do you have to be to fly from Ontario Airport to Madrid Barajas Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Madrid Barajas Airport.
What documentation or ID do you need to fly to Madrid Barajas Airport?
The travel and health documents required for your trip to Madrid Barajas Airport 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 Madrid Barajas Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Ontario to Madrid?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Madrid is British Airways (40% of total bookings). The next most popular airlines are Iberia (39%) and American Airlines (21%).

Best airlines flying from Ontario to Madrid

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.1 11,846 reviews	Search American Airlines flights
British Airways	PriceFrom $504	Free Cancellation	Rating 6.7 8,148 reviews	Search British Airways flights
Iberia	PriceFrom $522	Free Cancellation	Rating 7.0 3,267 reviews	Search Iberia flights

Toledo

Segovia

Fuenlabrada

Getafe

Cuenca

Guadalajara

San Lorenzo de El Escorial

Why use momondo?

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

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 Madrid for you.

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

Yes. momondo allows you to filter the results for Ontario to Madrid flights to just show those with flexible booking policies.

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

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 Madrid.

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

Yes. momondo can track prices for Ontario to Madrid 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.

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Cheap flights from Ontario to Madrid from $291

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Madrid departing on 11/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Ontario to Madrid

Our best United Airlines deals on Ontario to Madrid flight tickets

Delta flights from Ontario to Madrid

Our best Delta deals on Ontario to Madrid flight tickets

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See travel insights to Madrid from

How to get the cheapest flight ticket from Ontario to Madrid

What is the cheapest month to fly to Madrid?

What is the cheapest day to depart on your flight to Madrid?

What is the cheapest time of day to depart on your flight to Madrid?

Can stopping save me money on Ontario to Madrid flights?

What is the cheapest airline that flies from Ontario to Madrid Barajas?

What airlines fly to Madrid?

Which airport is the most popular layover for flights between Ontario and Madrid?

Which layover airport offers the lowest fares from Ontario to Madrid?

Which layover airport has the shortest travel time from Ontario to Madrid?

Which layover airport has the shortest connection time from Ontario to Madrid?

When to book flights from Ontario to Madrid

Cheap Ontario to Madrid (ONT to MAD) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Ontario to Madrid

Best airlines flying from Ontario to Madrid

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

Traveling to a place near Madrid?

Why use momondo?

An easier way to manage your Madrid trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Fly your favorite airline to Madrid

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Madrid

List of cabin classes available on flights landing in Madrid. Availability may vary depending on flight origin and airline.

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