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Cheap flights from Madrid to Los Angeles from $423

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Madrid to Los Angeles departing on 9/10. 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

Find the cheapest flights from Madrid to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
1:00 pm - 10:49 pm
MAD
-
ONT
18h 49m
1 stop
British Airways Logo
3:09 pm - 6:30 pm
ONT
-
MAD
18h 21m
2 stops
$517British Airways
Tue, Jan 12 - Mon, Feb 8
British Airways Logo
10:25 am - 10:49 pm
MAD
-
ONT
21h 24m
2 stops
British Airways Logo
3:09 pm - 6:30 pm
ONT
-
MAD
18h 21m
2 stops
$522British Airways
Tue, Jan 12 - Mon, Feb 8
Multiple Airlines Logo
1:00 pm - 10:49 pm
MAD
-
ONT
18h 49m
1 stop
Multiple Airlines Logo
3:09 pm - 6:10 am
ONT
-
MAD
30h 01m
1 stop
$527Multiple Airlines
Tue, Jan 12 - Mon, Feb 8
British Airways Logo
12:40 pm - 8:58 pm
MAD
-
ONT
17h 18m
1 stop
British Airways Logo
10:58 am - 9:20 am
ONT
-
MAD
13h 22m
1 stop
$559British Airways
Thu, Dec 24 - Wed, Jan 20
British Airways Logo
12:40 pm - 9:29 am
MAD
-
ONT
29h 49m
1 stop
British Airways Logo
2:22 pm - 9:05 am
ONT
-
MAD
33h 43m
1 stop
$562British Airways
Thu, Sep 17 - Mon, Sep 21
British Airways Logo
12:40 pm - 9:34 am
MAD
-
ONT
29h 54m
1 stop
British Airways Logo
2:22 pm - 9:05 am
ONT
-
MAD
33h 43m
1 stop
$563British Airways
Mon, Aug 31 - Mon, Sep 14
British Airways Logo
3:55 pm - 10:59 pm
MAD
-
ONT
16h 04m
1 stop
British Airways Logo
10:29 am - 9:05 am
ONT
-
MAD
13h 36m
1 stop
$566British Airways
Thu, Aug 27 - Mon, Aug 31
Iberia Logo
3:55 pm - 10:59 pm
MAD
-
ONT
16h 04m
1 stop
Iberia Logo
2:22 pm - 2:25 pm
ONT
-
MAD
15h 03m
1 stop
$567Iberia
Thu, Aug 27 - Thu, Sep 10
Iberia Logo
3:55 pm - 10:59 pm
MAD
-
ONT
16h 04m
1 stop
Iberia Logo
2:22 pm - 2:25 pm
ONT
-
MAD
15h 03m
1 stop
$568Iberia
Thu, Aug 27 - Thu, Sep 10
Iberia Logo
3:55 pm - 10:59 pm
MAD
-
ONT
16h 04m
1 stop
Iberia Logo
2:22 pm - 2:25 pm
ONT
-
MAD
15h 03m
1 stop
$569Iberia
Thu, Aug 27 - Thu, Sep 10

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British Airways flights from Madrid to Ontario

Our best British Airways deals on Madrid to Ontario flight tickets
British Airways
Jan 12
MAD1:00 pmMadrid Barajas
18h 49m
1 stop
ONT10:49 pmOntario
Feb 8
ONT3:09 pmOntario
18h 21m
2 stops
MAD6:30 pmMadrid Barajas
$517
British Airways
Jan 12
MAD10:25 amMadrid Barajas
21h 24m
2 stops
ONT10:49 pmOntario
Feb 8
ONT3:09 pmOntario
18h 21m
2 stops
MAD6:30 pmMadrid Barajas
$522
British Airways
Dec 24
MAD12:40 pmMadrid Barajas
17h 18m
1 stop
ONT8:58 pmOntario
Jan 20
ONT10:58 amOntario
13h 22m
1 stop
MAD9:20 amMadrid Barajas
$559

American Airlines flights from Madrid to Ontario

Our best American Airlines deals on Madrid to Ontario flight tickets
American Airlines
Sep 1
MAD3:55 pmMadrid Barajas
16h 04m
1 stop
ONT10:59 pmOntario
Sep 6
ONT10:29 amOntario
13h 36m
1 stop
MAD9:05 amMadrid Barajas
$584
American Airlines
Jan 8
MAD10:00 amMadrid Barajas
21h 01m
2 stops
ONT10:01 pmOntario
Jan 12
ONT10:58 amOntario
13h 22m
1 stop
MAD9:20 amMadrid Barajas
$715
American Airlines
Dec 19
MAD12:55 amMadrid Barajas
18h 00m
1 stop
ONT9:55 amOntario
Jan 17
ONT11:59 pmOntario
24h 21m
1 stop
MAD9:20 amMadrid Barajas
$736

momondo Fare Finder

 
Customize your flight search to find flights from Madrid to Ontario 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 26, 2026.
Use the filters below to find and compare flights from Madrid to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Tue 1/12

1:00 pm-10:49 pm

1 stop18h 49m

Ontario

Mon 2/8

3:09 pm-6:30 pm

2 stops18h 21m

$517

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Tue 1/12

10:25 am-10:49 pm

2 stops21h 24m

Ontario

Mon 2/8

3:09 pm-6:30 pm

2 stops18h 21m

$522

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Tue 1/12

1:00 pm-10:49 pm

1 stop18h 49m

Ontario

Mon 2/8

3:09 pm-6:10 am

1 stop30h 01m

$527

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 12/24

12:40 pm-8:58 pm

1 stop17h 18m

Ontario

Wed 1/20

10:58 am-9:20 am

1 stop13h 22m

$559

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 9/17

12:40 pm-9:29 am

1 stop29h 49m

Ontario

Mon 9/21

2:22 pm-9:05 am

1 stop33h 43m

$562

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 8/31

12:40 pm-9:34 am

1 stop29h 54m

Ontario

Mon 9/14

2:22 pm-9:05 am

1 stop33h 43m

$563
Quickest round-trip

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 8/27

3:55 pm-10:59 pm

1 stop16h 04m

Ontario

Mon 8/31

10:29 am-9:05 am

1 stop13h 36m

$566

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 8/27

3:55 pm-10:59 pm

1 stop16h 04m

Ontario

Thu 9/10

2:22 pm-2:25 pm

1 stop15h 03m

$567

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 8/27

3:55 pm-10:59 pm

1 stop16h 04m

Ontario

Thu 9/10

2:22 pm-2:25 pm

1 stop15h 03m

$568

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 8/27

3:55 pm-10:59 pm

1 stop16h 04m

Ontario

Thu 9/10

2:22 pm-2:25 pm

1 stop15h 03m

$569

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 Los Angeles from

How to get the cheapest flight ticket from Madrid to Ontario

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

Can stopping save me money on Madrid to Ontario flights?

You could potentially save up to 34% on your flight if you consider stops on a Madrid to Ontario flight.

When to book flights from Madrid to Ontario

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

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

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

Fastest flight time

16h 04m

Direct flights

None
The fastest flight from Madrid to Ontario takes 16h 04m
There are no direct flights from Madrid to Ontario. There are no popular flight routes from Madrid to Ontario.
Search flight deals

Frequently asked questions about flying from Madrid to Ontario

  • How far is Madrid Barajas to Ontario by plane?

    Madrid Barajas and Ontario are 5789.5 mi apart from one another. By plane, this route typically takes 16h 04m.

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

    Prices for flights from Madrid Barajas Airport to Ontario Airport refresh daily.

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

  • What documentation or ID do you need to fly to Ontario Airport?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Madrid.

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

Yes. momondo enables you to select and highlight flights to Ontario from Madrid with this policy.

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

momondo provides multiple filters to help you find the best flight to Ontario from Madrid. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Ontario from Madrid are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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