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Cheap flights from Ontario to Madrid from $425

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 1/18. 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
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.
United Airlines Logo
5:00 am - 8:00 am
ONT
-
MAD
18h 00m2 stops
United Airlines Logo
12:40 pm - 10:25 pm
MAD
-
ONT
41h 45m2 stops
$506United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
6:10 am - 9:15 am
ONT
-
MAD
18h 05m2 stops
United Airlines Logo
1:35 pm - 10:25 pm
MAD
-
ONT
41h 50m2 stops
$507United Airlines
Sun, Feb 1 - Wed, Mar 4
British Airways Logo
10:58 am - 4:55 pm
ONT
-
MAD
20h 57m2 stops
British Airways Logo
12:40 pm - 10:48 pm
MAD
-
ONT
19h 08m1 stop
$510British Airways
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
6:22 am - 8:50 am
ONT
-
MAD
17h 28m2 stops
Multiple Airlines Logo
12:00 pm - 10:48 pm
MAD
-
ONT
19h 48m2 stops
$515Multiple Airlines
Sun, Jan 18 - Tue, Feb 3
British Airways Logo
10:58 am - 2:15 pm
ONT
-
MAD
18h 17m2 stops
British Airways Logo
12:40 pm - 10:48 pm
MAD
-
ONT
19h 08m1 stop
$519British Airways
Tue, Jan 20 - Wed, Jan 28
British Airways Logo
7:16 am - 9:25 am
ONT
-
MAD
17h 09m1 stop
British Airways Logo
12:40 pm - 10:48 pm
MAD
-
ONT
19h 08m1 stop
$520British Airways
Wed, Jan 28 - Wed, Feb 4
British Airways Logo
11:59 pm - 4:55 pm
ONT
-
MAD
31h 56m2 stops
British Airways Logo
8:50 pm - 10:07 pm
MAD
-
ONT
33h 17m2 stops
$521British Airways
Mon, Mar 2 - Mon, Mar 9
Iberia Logo
6:10 am - 6:15 am
ONT
-
MAD
15h 05m1 stop
Iberia Logo
12:55 am - 10:06 am
MAD
-
ONT
17h 11m1 stop
$522Iberia
Tue, Mar 3 - Mon, Mar 9
United Airlines Logo
6:00 am - 9:15 am
ONT
-
MAD
18h 15m2 stops
United Airlines Logo
8:30 am - 8:58 pm
MAD
-
ONT
21h 28m2 stops
$523United Airlines
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
5:00 am - 8:00 am
ONT
-
MAD
18h 00m2 stops
United Airlines Logo
8:35 am - 10:57 pm
MAD
-
ONT
23h 22m2 stops
$526United Airlines
Mon, Feb 16 - Fri, Feb 27

British Airways flights from Ontario to Madrid

Our best British Airways deals on Ontario to Madrid flight tickets
British Airways
Jan 28
ONT10:58 amOntario
20h 57m
2 stops
MAD4:55 pmMadrid Barajas
Feb 4
MAD12:40 pmMadrid Barajas
19h 08m
1 stop
ONT10:48 pmOntario
$510
Find similar
British Airways
Jan 20
ONT10:58 amOntario
18h 17m
2 stops
MAD2:15 pmMadrid Barajas
Jan 28
MAD12:40 pmMadrid Barajas
19h 08m
1 stop
ONT10:48 pmOntario
$519
Find similar
British Airways
Jan 28
ONT7:16 amOntario
17h 09m
1 stop
MAD9:25 amMadrid Barajas
Feb 4
MAD12:40 pmMadrid Barajas
19h 08m
1 stop
ONT10:48 pmOntario
$520
Find similar

United Airlines flights from Ontario to Madrid

Our best United Airlines deals on Ontario to Madrid flight tickets
United Airlines
Mar 4
ONT5:00 amOntario
18h 00m
2 stops
MAD8:00 amMadrid Barajas
Mar 11
MAD12:40 pmMadrid Barajas
41h 45m
2 stops
ONT10:25 pmOntario
$506
Find similar
United Airlines
Feb 1
ONT6:10 amOntario
18h 05m
2 stops
MAD9:15 amMadrid Barajas
Mar 4
MAD1:35 pmMadrid Barajas
41h 50m
2 stops
ONT10:25 pmOntario
$507
Find similar
United Airlines
Jan 28
ONT6:00 amOntario
18h 15m
2 stops
MAD9:15 amMadrid Barajas
Feb 4
MAD8:30 amMadrid Barajas
21h 28m
2 stops
ONT8:58 pmOntario
$523
Find similar

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 December 16, 2025.
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

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 3/4

5:00 am-8:00 am

2 stops18h 00m

Madrid Barajas

Wed 3/11

12:40 pm-10:25 pm

2 stops41h 45m

$506

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 2/1

6:10 am-9:15 am

2 stops18h 05m

Madrid Barajas

Wed 3/4

1:35 pm-10:25 pm

2 stops41h 50m

$507

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 1/28

10:58 am-4:55 pm

2 stops20h 57m

Madrid Barajas

Wed 2/4

12:40 pm-10:48 pm

1 stop19h 08m

$510

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 1/18

6:22 am-8:50 am

2 stops17h 28m

Madrid Barajas

Tue 2/3

12:00 pm-10:48 pm

2 stops19h 48m

$515

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 1/20

10:58 am-2:15 pm

2 stops18h 17m

Madrid Barajas

Wed 1/28

12:40 pm-10:48 pm

1 stop19h 08m

$519

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 1/28

7:16 am-9:25 am

1 stop17h 09m

Madrid Barajas

Wed 2/4

12:40 pm-10:48 pm

1 stop19h 08m

$520

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 3/2

11:59 pm-4:55 pm

2 stops31h 56m

Madrid Barajas

Mon 3/9

8:50 pm-10:07 pm

2 stops33h 17m

$521

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 3/3

6:10 am-6:15 am

1 stop15h 05m

Madrid Barajas

Mon 3/9

12:55 am-10:06 am

1 stop17h 11m

$522

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 1/28

6:00 am-9:15 am

2 stops18h 15m

Madrid Barajas

Wed 2/4

8:30 am-8:58 pm

2 stops21h 28m

$523

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 2/16

5:00 am-8:00 am

2 stops18h 00m

Madrid Barajas

Fri 2/27

8:35 am-10:57 pm

2 stops23h 22m

$526

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 January to fly from Ontario, when ticket prices are also cheap, with an average price of $538.

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 $788. 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 $1,066.

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

Flying to Madrid from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $760 when looking at flights departing at noon. Flights to Madrid are more costly in the afternoon, with an average ticket price of $899. 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 15% 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 04m

Direct flights

None
The fastest flight from Ontario to Madrid takes 13h 04m
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 04m 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
DeltaPriceFrom $444Free CancellationRating
7.9
8,008 reviews
Search Delta flights
IberiaPriceFrom $497Free CancellationRating
7.0
3,051 reviews
Search Iberia flights
British AirwaysPriceFrom $517Free CancellationRating
6.7
7,582 reviews
Search British Airways flights
American AirlinesPriceFrom $595Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights

Traveling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Toledo
Segovia
Getafe
Fuenlabrada
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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