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Cheap flights from Ontario to Madrid from $324

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 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Ontario to Madrid

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
12:49 pm - 12:15 pm
ONT
-
MAD
14h 26m
1 stop
KLM Logo
12:45 pm - 9:00 pm
MAD
-
ONT
17h 15m
1 stop
$685KLM
Wed, Apr 22 - Wed, Apr 29
KLM Logo
12:49 pm - 12:15 pm
ONT
-
MAD
14h 26m
1 stop
KLM Logo
12:45 pm - 9:00 pm
MAD
-
ONT
17h 15m
1 stop
$694KLM
Tue, Apr 14 - Wed, Apr 29
KLM Logo
12:49 pm - 12:15 pm
ONT
-
MAD
14h 26m
1 stop
KLM Logo
12:45 pm - 9:00 pm
MAD
-
ONT
17h 15m
1 stop
$695KLM
Wed, Apr 22 - Wed, Apr 29
United Airlines Logo
7:00 am - 8:05 am
ONT
-
MAD
16h 05m
2 stops
United Airlines Logo
8:25 am - 10:45 pm
MAD
-
ONT
23h 20m
2 stops
$699United Airlines
Wed, Apr 8 - Wed, Apr 22
British Airways Logo
11:59 pm - 9:05 am
ONT
-
MAD
24h 06m
1 stop
British Airways Logo
10:25 am - 9:07 pm
MAD
-
ONT
19h 42m
1 stop
$730British Airways
Mon, Apr 20 - Wed, Apr 29
British Airways Logo
11:59 pm - 9:05 am
ONT
-
MAD
24h 06m
1 stop
British Airways Logo
1:00 pm - 11:46 pm
MAD
-
ONT
19h 46m
1 stop
$731British Airways
Mon, Apr 20 - Wed, Apr 29
Iberia Logo
2:08 pm - 2:25 pm
ONT
-
MAD
15h 17m
1 stop
Iberia Logo
3:55 pm - 11:46 pm
MAD
-
ONT
16h 51m
1 stop
$735Iberia
Tue, Apr 21 - Wed, Apr 29
Delta Logo
10:15 pm - 12:15 pm
ONT
-
MAD
29h 00m
1 stop
Delta Logo
12:45 pm - 9:00 pm
MAD
-
ONT
17h 15m
1 stop
$736Delta
Sun, Apr 19 - Mon, May 4
KLM Logo
12:49 pm - 12:15 pm
ONT
-
MAD
14h 26m
1 stop
KLM Logo
12:45 pm - 9:00 pm
MAD
-
ONT
17h 15m
1 stop
$737KLM
Sun, Apr 19 - Mon, May 4
Delta Logo
10:15 pm - 12:15 pm
ONT
-
MAD
29h 00m
1 stop
Delta Logo
12:45 pm - 11:36 am
MAD
-
ONT
31h 51m
1 stop
$739Delta
Sun, Apr 19 - Mon, May 4

Iberia flights from Ontario to Madrid

Our best Iberia deals on Ontario to Madrid flight tickets
Iberia
Apr 21
ONT2:08 pmOntario
15h 17m
1 stop
MAD2:25 pmMadrid Barajas
Apr 29
MAD3:55 pmMadrid Barajas
16h 51m
1 stop
ONT11:46 pmOntario
$735
Iberia
Aug 3
ONT2:15 pmOntario
15h 10m
1 stop
MAD2:25 pmMadrid Barajas
Oct 28
MAD1:00 pmMadrid Barajas
16h 08m
1 stop
ONT9:08 pmOntario
$789
Iberia
Apr 20
ONT7:30 amOntario
19h 00m
2 stops
MAD11:30 amMadrid Barajas
May 3
MAD3:55 pmMadrid Barajas
16h 51m
1 stop
ONT11:46 pmOntario
$814

KLM flights from Ontario to Madrid

Our best KLM deals on Ontario to Madrid flight tickets
KLM
Apr 22
ONT12:49 pmOntario
14h 26m
1 stop
MAD12:15 pmMadrid Barajas
Apr 29
MAD12:45 pmMadrid Barajas
17h 15m
1 stop
ONT9:00 pmOntario
$685
KLM
Apr 14
ONT12:49 pmOntario
14h 26m
1 stop
MAD12:15 pmMadrid Barajas
Apr 29
MAD12:45 pmMadrid Barajas
17h 15m
1 stop
ONT9:00 pmOntario
$694
KLM
Apr 22
ONT12:49 pmOntario
14h 26m
1 stop
MAD12:15 pmMadrid Barajas
Apr 29
MAD12:45 pmMadrid Barajas
17h 15m
1 stop
ONT9:00 pmOntario
$695

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Madrid 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, momondo users made 832,500 searches. Data last updated March 24, 2026.
Use the filters below to find and compare flights from Ontario to Madrid that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/22

12:49 pm-12:15 pm

1 stop14h 26m

Madrid Barajas

Wed 4/29

12:45 pm-9:00 pm

1 stop17h 15m

$685

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/14

12:49 pm-12:15 pm

1 stop14h 26m

Madrid Barajas

Wed 4/29

12:45 pm-9:00 pm

1 stop17h 15m

$694

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/22

12:49 pm-12:15 pm

1 stop14h 26m

Madrid Barajas

Wed 4/29

12:45 pm-9:00 pm

1 stop17h 15m

$695

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 4/8

7:00 am-8:05 am

2 stops16h 05m

Madrid Barajas

Wed 4/22

8:25 am-10:45 pm

2 stops23h 20m

$699

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 4/20

11:59 pm-9:05 am

1 stop24h 06m

Madrid Barajas

Wed 4/29

10:25 am-9:07 pm

1 stop19h 42m

$730

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 4/20

11:59 pm-9:05 am

1 stop24h 06m

Madrid Barajas

Wed 4/29

1:00 pm-11:46 pm

1 stop19h 46m

$731

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 4/21

2:08 pm-2:25 pm

1 stop15h 17m

Madrid Barajas

Wed 4/29

3:55 pm-11:46 pm

1 stop16h 51m

$735

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 4/19

10:15 pm-12:15 pm

1 stop29h 00m

Madrid Barajas

Mon 5/4

12:45 pm-9:00 pm

1 stop17h 15m

$736

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 4/19

12:49 pm-12:15 pm

1 stop14h 26m

Madrid Barajas

Mon 5/4

12:45 pm-9:00 pm

1 stop17h 15m

$737

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 4/19

10:15 pm-12:15 pm

1 stop29h 00m

Madrid Barajas

Mon 5/4

12:45 pm-11:36 am

1 stop31h 51m

$739

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Madrid from

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

What is the cheapest month to fly to Madrid?

The month of October is, on average, the cheapest month to fly to Madrid from Ontario, with most prices found around $497. If you don’t want to visit Madrid in October, 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 Wednesday when prices can be found for as low as $801. 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 $1,016.

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 $813 when looking at flights departing in the evening. Flights to Madrid are more costly in the afternoon, with an average ticket price of $856. 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 47% 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 06m

Direct flights

None
The fastest flight from Ontario to Madrid takes 13h 06m
There are no direct flights from Ontario to Madrid. There are no popular flight routes from Ontario to Madrid.
Search flight deals

  • How far is Ontario to Madrid Barajas by plane?

    A flight from Ontario to Madrid Barajas will travel around 5789.5 mi. 13h 06m 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?

  • 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?

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 AirlinesPriceFrom $439Free CancellationRating
7.1
11,492 reviews
Search American Airlines flights
DeltaPriceFrom $444Free CancellationRating
7.9
8,319 reviews
Search Delta flights
IberiaPriceFrom $497Free CancellationRating
7.0
3,150 reviews
Search Iberia flights
British AirwaysPriceFrom $504Free CancellationRating
6.7
7,813 reviews
Search British Airways flights

Traveling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Toledo
Segovia
Fuenlabrada
Getafe
Cuenca
San Lorenzo de El Escorial
Guadalajara

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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