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.

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.

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

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

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.

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 45% 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.

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 November 2026, there are 4 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.

$320 Cheap Flights from Ontario to Madrid in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Madrid

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One-way

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Enter your travel dates to find the best prices.

6:00 am - 9:30 amONT Ontario-MAD Madrid Barajas

18h 30m2 stops Houston George Bush Intcntl Newark

1:25 pm - 6:50 pmMAD Madrid Barajas-ONT Ontario

38h 25m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$763United Airlines

Wed, Jan 20 - Wed, Jan 27

6:37 pm - 8:00 amONT Ontario-MAD Madrid Barajas

28h 23m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl

1:25 pm - 6:50 pmMAD Madrid Barajas-ONT Ontario

38h 25m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$767United Airlines

Sun, Jan 10 - Wed, Jan 27

1:09 pm - 11:45 amONT Ontario-MAD Madrid Barajas

13h 36m1 stop Atlanta Hartsfield-Jackson

1:55 pm - 9:43 pmMAD Madrid Barajas-ONT Ontario

16h 48m1 stop Atlanta Hartsfield-Jackson

$778KLM

Mon, Jan 18 - Tue, Jan 26

1:09 pm - 11:45 amONT Ontario-MAD Madrid Barajas

13h 36m1 stop Atlanta Hartsfield-Jackson

12:20 pm - 9:44 pmMAD Madrid Barajas-ONT Ontario

18h 24m1 stop Atlanta Hartsfield-Jackson

$778KLM

Mon, Feb 1 - Wed, Feb 24

1:44 pm - 8:05 pmONT Ontario-MAD Madrid Barajas

22h 21m2 stops Phoenix Sky Harbor Intl London Heathrow

3:55 pm - 11:59 pmMAD Madrid Barajas-ONT Ontario

17h 04m1 stop Dallas/Fort Worth

$783British Airways

Sun, Mar 21 - Wed, Mar 31

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

20h 00m2 stops Dallas/Fort Worth Barcelona-El Prat

1:00 pm - 10:50 pmMAD Madrid Barajas-ONT Ontario

17h 50m1 stop Dallas/Fort Worth

$784Iberia

Wed, Mar 10 - Wed, Mar 17

1:44 pm - 8:05 pmONT Ontario-MAD Madrid Barajas

22h 21m2 stops Phoenix Sky Harbor Intl London Heathrow

8:05 am - 10:06 pmMAD Madrid Barajas-ONT Ontario

23h 01m2 stops London Heathrow Charlotte Douglas

$799British Airways

Sun, Mar 21 - Wed, Mar 31

10:34 am - 9:25 amONT Ontario-MAD Madrid Barajas

13h 51m1 stop Dallas/Fort Worth

1:00 pm - 11:13 pmMAD Madrid Barajas-ONT Ontario

19h 13m1 stop Dallas/Fort Worth

$812Iberia

Wed, Dec 30 - Wed, Jan 20

6:00 am - 6:10 amONT Ontario-MAD Madrid Barajas

16h 10m1 stop Dallas/Fort Worth

3:55 pm - 11:59 pmMAD Madrid Barajas-ONT Ontario

17h 04m1 stop Dallas/Fort Worth

$834American Airlines

Sun, Mar 21 - Wed, Mar 31

10:32 am - 9:25 amONT Ontario-MAD Madrid Barajas

13h 53m1 stop Dallas/Fort Worth

12:40 pm - 9:58 pmMAD Madrid Barajas-ONT Ontario

18h 18m1 stop Charlotte Douglas

$1,129American Airlines

Fri, Dec 4 - Fri, Dec 18

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 8:05 amONT Ontario-MAD Madrid Barajas

16h 05m1 stop Dallas/Fort Worth

1:15 pm - 11:20 pmMAD Madrid Barajas-ONT Ontario

19h 05m1 stop Charlotte Douglas

$937British Airways

Wed, Nov 11 - Tue, Nov 24

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

$940KLM

Wed, Nov 11 - Tue, Nov 17

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

$945Multiple Airlines

Tue, Nov 10 - Tue, Nov 24

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

$945Multiple Airlines

Tue, Nov 10 - Thu, Dec 10

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

17h 40m1 stop Atlanta Hartsfield-Jackson

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

18h 37m1 stop Atlanta Hartsfield-Jackson

$945KLM

Tue, Nov 10 - Fri, Nov 20

7:00 am - 8:05 amONT Ontario-MAD Madrid Barajas

16h 05m1 stop Dallas/Fort Worth

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

18h 36m1 stop Dallas/Fort Worth

$983British Airways

Wed, Nov 11 - Sun, Nov 22

7:00 am - 6:10 amONT Ontario-MAD Madrid Barajas

14h 10m1 stop Dallas/Fort Worth

1:00 pm - 11:59 pmMAD Madrid Barajas-ONT Ontario

19h 59m1 stop Dallas/Fort Worth

$988Iberia

Tue, Nov 10 - Fri, Nov 20

7:00 am - 8:05 amONT Ontario-MAD Madrid Barajas

16h 05m1 stop Dallas/Fort Worth

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

18h 36m1 stop Dallas/Fort Worth

$1,039Iberia

Wed, Nov 11 - Sun, Nov 22

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

22h 15m1 stop Charlotte Douglas

1:00 pm - 11:59 pmMAD Madrid Barajas-ONT Ontario

19h 59m1 stop Dallas/Fort Worth

$1,091American Airlines

Sat, Nov 14 - Thu, Nov 19

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

22h 15m1 stop Charlotte Douglas

1:15 pm - 9:52 pmMAD Madrid Barajas-ONT Ontario

17h 37m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

$1,095American Airlines

Sat, Nov 14 - Thu, Nov 19

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Iberia flights from Ontario to Madrid

Our best Iberia deals on Ontario to Madrid flight tickets

Iberia

Mar 10

ONT7:00 amOntario

20h 00m

2 stops

MAD12:00 pmMadrid Barajas

Mar 17

MAD1:00 pmMadrid Barajas

17h 50m

1 stop

ONT10:50 pmOntario

$784

Iberia

Dec 30

ONT10:34 amOntario

13h 51m

1 stop

MAD9:25 amMadrid Barajas

Jan 20

MAD1:00 pmMadrid Barajas

19h 13m

1 stop

ONT11:13 pmOntario

$812

Iberia

Feb 28

ONT10:34 amOntario

13h 51m

1 stop

MAD9:25 amMadrid Barajas

Mar 10

MAD1:00 pmMadrid Barajas

18h 50m

1 stop

ONT10:50 pmOntario

$820

KLM flights from Ontario to Madrid

Our best KLM deals on Ontario to Madrid flight tickets

KLM

Mar 10

ONT7:00 amOntario

17h 55m

2 stops

MAD9:55 amMadrid Barajas

Mar 17

MAD6:05 amMadrid Barajas

19h 12m

2 stops

ONT5:17 pmOntario

$786

KLM

Dec 31

ONT11:14 amOntario

13h 31m

1 stop

MAD9:45 amMadrid Barajas

Jan 14

MAD1:55 pmMadrid Barajas

16h 49m

1 stop

ONT9:44 pmOntario

$808

KLM

Feb 10

ONT1:09 pmOntario

13h 36m

1 stop

MAD11:45 amMadrid Barajas

Feb 14

MAD12:20 pmMadrid Barajas

18h 24m

1 stop

ONT9:44 pmOntario

$828

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 1/20

6:00 am-9:30 am

2 stops18h 30m

Madrid Barajas

Wed 1/27

1:25 pm-6:50 pm

2 stops38h 25m

$763

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sun 1/10

6:37 pm-8:00 am

2 stops28h 23m

Madrid Barajas

Wed 1/27

1:25 pm-6:50 pm

2 stops38h 25m

$767

Quickest round-trip

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Mon 1/18

1:09 pm-11:45 am

1 stop13h 36m

Madrid Barajas

Tue 1/26

1:55 pm-9:43 pm

1 stop16h 48m

$778

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Mon 2/1

1:09 pm-11:45 am

1 stop13h 36m

Madrid Barajas

Wed 2/24

12:20 pm-9:44 pm

1 stop18h 24m

$778

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sun 3/21

1:44 pm-8:05 pm

2 stops22h 21m

Madrid Barajas

Wed 3/31

3:55 pm-11:59 pm

1 stop17h 04m

$783

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 3/10

7:00 am-12:00 pm

2 stops20h 00m

Madrid Barajas

Wed 3/17

1:00 pm-10:50 pm

1 stop17h 50m

$784

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sun 3/21

1:44 pm-8:05 pm

2 stops22h 21m

Madrid Barajas

Wed 3/31

8:05 am-10:06 pm

2 stops23h 01m

$799

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Wed 12/30

10:34 am-9:25 am

1 stop13h 51m

Madrid Barajas

Wed 1/20

1:00 pm-11:13 pm

1 stop19h 13m

$812

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Sun 3/21

6:00 am-6:10 am

1 stop16h 10m

Madrid Barajas

Wed 3/31

3:55 pm-11:59 pm

1 stop17h 04m

$834

OntarioMadrid

ONT Ontario - MAD Madrid Barajas

ONTMAD

Ontario

Fri 12/4

10:32 am-9:25 am

1 stop13h 53m

Madrid Barajas

Fri 12/18

12:40 pm-9:58 pm

1 stop18h 18m

$1,129

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 typical price of a round-trip flight between Ontario and Madrid?

Prices are currently low for flights on this route.

Typical prices usually range from $765 to $825.
The lowest price recently found on this route was $763.

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 $918. 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 $1,282.

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 $866 when looking at flights departing in the evening. Flights to Madrid are more costly in the afternoon, with an average ticket price of $1,072. 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 70% 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

Best Price Found	$320
Fastest flight time	13h 31m
Direct flights	None

The best one-way flight to Madrid from Ontario in the past 72 hours is $320. The best round-trip flight deal from Ontario to Madrid found on momondo in the last 72 hours is $763.

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

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

Search flight deals

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 31m 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 November 2026, there are 4 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 Iberia (37% of total bookings). The next most popular airlines are British Airways (25%), American Airlines (19%), and KLM (19%).

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 7.0 12,230 reviews	Search American Airlines flights
British Airways	PriceFrom $474	Free Cancellation	Rating 6.7 8,285 reviews	Search British Airways flights
Iberia	PriceFrom $539	Free Cancellation	Rating 7.0 3,234 reviews	Search Iberia flights
KLM	PriceFrom $594	Free Cancellation	Rating 7.8 1,594 reviews	Search KLM flights

Toledo

Segovia

Getafe

Fuenlabrada

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 $320

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 11/25. 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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Iberia flights from Ontario to Madrid

Our best Iberia deals on Ontario to Madrid flight tickets

KLM flights from Ontario to Madrid

Our best KLM deals on Ontario to Madrid flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Madrid that are best for you.

See travel insights to Madrid from

How to get the cheapest flight ticket from Ontario to Madrid

What is the typical price of a round-trip flight between Ontario and 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

Best Price Found

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.

Find better results for your trip to Spain

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.

Popular cities in Spain

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

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