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Cheap flights from Ontario to Madrid from $337

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 10/5. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Madrid

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
10:25 am - 9:05 am
ONT
-
MAD
13h 40m
1 stop
British Airways Logo
12:40 pm - 7:54 pm
MAD
-
ONT
16h 14m
1 stop
$733British Airways
Wed, Sep 23 - Tue, Oct 6
United Airlines Logo
5:00 am - 8:00 am
ONT
-
MAD
18h 00m
2 stops
United Airlines Logo
1:25 pm - 6:29 pm
MAD
-
ONT
38h 04m
2 stops
$746United Airlines
Wed, Nov 4 - Wed, Nov 18
United Airlines Logo
6:00 am - 9:00 am
ONT
-
MAD
18h 00m
2 stops
United Airlines Logo
1:25 pm - 6:29 pm
MAD
-
ONT
38h 04m
2 stops
$748United Airlines
Sun, Oct 4 - Wed, Nov 25
United Airlines Logo
7:00 am - 8:50 am
ONT
-
MAD
16h 50m
2 stops
United Airlines Logo
12:45 pm - 8:58 pm
MAD
-
ONT
41h 13m
2 stops
$751United Airlines
Tue, Sep 29 - Wed, Oct 14
United Airlines Logo
1:52 pm - 6:50 am
ONT
-
MAD
55h 58m
2 stops
United Airlines Logo
1:30 pm - 10:59 pm
MAD
-
ONT
42h 29m
2 stops
$757United Airlines
Fri, Sep 25 - Tue, Oct 6
British Airways Logo
10:25 am - 9:05 am
ONT
-
MAD
13h 40m
1 stop
British Airways Logo
12:40 pm - 7:54 pm
MAD
-
ONT
16h 14m
1 stop
$759British Airways
Tue, Sep 22 - Tue, Oct 6
British Airways Logo
10:25 am - 12:15 pm
ONT
-
MAD
17h 50m
2 stops
British Airways Logo
12:55 am - 9:57 am
MAD
-
ONT
18h 02m
1 stop
$760British Airways
Tue, Oct 27 - Mon, Nov 9
Delta Logo
7:00 am - 9:55 am
ONT
-
MAD
17h 55m
1 stop
Delta Logo
11:55 am - 10:14 pm
MAD
-
ONT
19h 19m
1 stop
$763Delta
Mon, Nov 30 - Tue, Dec 15
British Airways Logo
12:46 pm - 7:45 am
ONT
-
MAD
33h 59m
1 stop
British Airways Logo
11:05 am - 6:57 pm
MAD
-
ONT
16h 52m
1 stop
$764British Airways
Sat, Nov 14 - Tue, Nov 24
British Airways Logo
10:47 am - 9:20 am
ONT
-
MAD
13h 33m
1 stop
British Airways Logo
12:40 pm - 9:07 pm
MAD
-
ONT
17h 27m
1 stop
$765British Airways
Tue, Dec 8 - Tue, Dec 15

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Delta flights from Ontario to Madrid

Our best Delta deals on Ontario to Madrid flight tickets
Delta
Nov 30
ONT7:00 amOntario
17h 55m
1 stop
MAD9:55 amMadrid Barajas
Dec 15
MAD11:55 amMadrid Barajas
19h 19m
1 stop
ONT10:14 pmOntario
$763
Delta
Sep 20
ONT10:00 pmOntario
26h 55m
2 stops
MAD9:55 amMadrid Barajas
Sep 29
MAD9:50 amMadrid Barajas
19h 17m
1 stop
ONT8:07 pmOntario
$768
Delta
Jul 25
ONT5:10 pmOntario
52h 10m
2 stops
MAD6:20 amMadrid Barajas
Aug 12
MAD9:50 amMadrid Barajas
19h 03m
1 stop
ONT7:53 pmOntario
$1,343

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 04m
2 stops
ONT6:29 pmOntario
$746
United Airlines
Oct 4
ONT6:00 amOntario
18h 00m
2 stops
MAD9:00 amMadrid Barajas
Nov 25
MAD1:25 pmMadrid Barajas
38h 04m
2 stops
ONT6:29 pmOntario
$748
United Airlines
Sep 29
ONT7:00 amOntario
16h 50m
2 stops
MAD8:50 amMadrid Barajas
Oct 14
MAD12:45 pmMadrid Barajas
41h 13m
2 stops
ONT8:58 pmOntario
$751

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 July 20, 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 9/23

10:25 am-9:05 am

1 stop13h 40m

Madrid Barajas

Tue 10/6

12:40 pm-7:54 pm

1 stop16h 14m

$733

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Wed 11/4

5:00 am-8:00 am

2 stops18h 00m

Madrid Barajas

Wed 11/18

1:25 pm-6:29 pm

2 stops38h 04m

$746

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sun 10/4

6:00 am-9:00 am

2 stops18h 00m

Madrid Barajas

Wed 11/25

1:25 pm-6:29 pm

2 stops38h 04m

$748

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 9/29

7:00 am-8:50 am

2 stops16h 50m

Madrid Barajas

Wed 10/14

12:45 pm-8:58 pm

2 stops41h 13m

$751

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Fri 9/25

1:52 pm-6:50 am

2 stops55h 58m

Madrid Barajas

Tue 10/6

1:30 pm-10:59 pm

2 stops42h 29m

$757

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 9/22

10:25 am-9:05 am

1 stop13h 40m

Madrid Barajas

Tue 10/6

12:40 pm-7:54 pm

1 stop16h 14m

$759

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 10/27

10:25 am-12:15 pm

2 stops17h 50m

Madrid Barajas

Mon 11/9

12:55 am-9:57 am

1 stop18h 02m

$760

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Mon 11/30

7:00 am-9:55 am

1 stop17h 55m

Madrid Barajas

Tue 12/15

11:55 am-10:14 pm

1 stop19h 19m

$763

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Sat 11/14

12:46 pm-7:45 am

1 stop33h 59m

Madrid Barajas

Tue 11/24

11:05 am-6:57 pm

1 stop16h 52m

$764

OntarioMadrid

ONT - MAD

ONTMAD

Ontario

Tue 12/8

10:47 am-9:20 am

1 stop13h 33m

Madrid Barajas

Tue 12/15

12:40 pm-9:07 pm

1 stop17h 27m

$765

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 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 $869. 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 $1,141.

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 $823 when looking at flights departing in the evening. Flights to Madrid are more costly in the afternoon, with an average ticket price of $926. 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 33m

Direct flights

None
The fastest flight from Ontario to Madrid takes 13h 33m
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 33m 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
British AirwaysPriceFrom $504Free CancellationRating
6.7
8,124 reviews
Search British Airways flights
IberiaPriceFrom $511Free CancellationRating
7.0
3,259 reviews
Search Iberia 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
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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