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Cheap flights from Madrid to Los Angeles from $415

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 8/31. 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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Find the cheapest flights from Madrid to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 10:37 pm
MAD
-
ONT
25h 37m
2 stops
Delta Logo
9:50 am - 4:45 pm
ONT
-
MAD
21h 55m
2 stops
$838Delta
Wed, May 6 - Sun, May 10
KLM Logo
6:00 am - 4:25 pm
MAD
-
ONT
19h 25m
2 stops
KLM Logo
10:00 pm - 12:15 pm
ONT
-
MAD
29h 15m
1 stop
$842KLM
Wed, May 6 - Sun, May 10
KLM Logo
12:45 pm - 9:00 pm
MAD
-
ONT
17h 15m
1 stop
KLM Logo
10:00 pm - 12:15 pm
ONT
-
MAD
29h 15m
1 stop
$847KLM
Wed, May 6 - Sun, May 10
British Airways Logo
3:55 pm - 11:46 pm
MAD
-
ONT
16h 51m
1 stop
British Airways Logo
10:59 am - 9:35 am
ONT
-
MAD
13h 36m
1 stop
$863British Airways
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
4:00 pm - 10:09 am
MAD
-
ONT
27h 09m
1 stop
Multiple Airlines Logo
12:19 pm - 2:25 pm
ONT
-
MAD
17h 06m
2 stops
$865Multiple Airlines
Fri, May 8 - Tue, May 12
Iberia Logo
3:55 pm - 11:46 pm
MAD
-
ONT
16h 51m
1 stop
Iberia Logo
12:40 pm - 2:25 pm
ONT
-
MAD
16h 45m
1 stop
$871Iberia
Mon, May 11 - Tue, May 26
Iberia Logo
3:55 pm - 11:46 pm
MAD
-
ONT
16h 51m
1 stop
Iberia Logo
2:18 pm - 2:25 pm
ONT
-
MAD
15h 07m
1 stop
$873Iberia
Wed, May 13 - Tue, May 26
KLM Logo
9:50 am - 6:36 pm
MAD
-
ONT
17h 46m
1 stop
KLM Logo
11:48 am - 12:15 pm
ONT
-
MAD
15h 27m
1 stop
$874KLM
Mon, Jun 1 - Sat, Jul 25
KLM Logo
6:00 am - 5:15 pm
MAD
-
ONT
20h 15m
2 stops
KLM Logo
1:35 pm - 4:25 pm
ONT
-
MAD
17h 50m
2 stops
$877KLM
Mon, May 4 - Sun, May 24
British Airways Logo
3:55 pm - 11:46 pm
MAD
-
ONT
16h 51m
1 stop
British Airways Logo
10:59 am - 9:35 am
ONT
-
MAD
13h 36m
1 stop
$879British Airways
Sat, May 9 - Wed, May 13

Delta flights from Madrid to Ontario

Our best Delta deals on Madrid to Ontario flight tickets
Delta
May 6
MAD6:00 amMadrid Barajas
25h 37m
2 stops
ONT10:37 pmOntario
May 10
ONT9:50 amOntario
21h 55m
2 stops
MAD4:45 pmMadrid Barajas
$838
Delta
May 6
MAD12:45 pmMadrid Barajas
17h 15m
1 stop
ONT9:00 pmOntario
May 10
ONT10:00 pmOntario
29h 15m
1 stop
MAD12:15 pmMadrid Barajas
$930
Delta
Apr 27
MAD12:45 pmMadrid Barajas
17h 15m
1 stop
ONT9:00 pmOntario
May 3
ONT12:49 pmOntario
14h 26m
1 stop
MAD12:15 pmMadrid Barajas
$1,207

KLM flights from Madrid to Ontario

Our best KLM deals on Madrid to Ontario flight tickets
KLM
May 6
MAD6:00 amMadrid Barajas
19h 25m
2 stops
ONT4:25 pmOntario
May 10
ONT10:00 pmOntario
29h 15m
1 stop
MAD12:15 pmMadrid Barajas
$842
KLM
May 6
MAD12:45 pmMadrid Barajas
17h 15m
1 stop
ONT9:00 pmOntario
May 10
ONT10:00 pmOntario
29h 15m
1 stop
MAD12:15 pmMadrid Barajas
$847
KLM
Jun 1
MAD9:50 amMadrid Barajas
17h 46m
1 stop
ONT6:36 pmOntario
Jul 25
ONT11:48 amOntario
15h 27m
1 stop
MAD12:15 pmMadrid Barajas
$874

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 April 23, 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

Wed 5/6

6:00 am-10:37 pm

2 stops25h 37m

Ontario

Sun 5/10

9:50 am-4:45 pm

2 stops21h 55m

$838

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 5/6

6:00 am-4:25 pm

2 stops19h 25m

Ontario

Sun 5/10

10:00 pm-12:15 pm

1 stop29h 15m

$842

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 5/6

12:45 pm-9:00 pm

1 stop17h 15m

Ontario

Sun 5/10

10:00 pm-12:15 pm

1 stop29h 15m

$847
Quickest round-trip

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 5/4

3:55 pm-11:46 pm

1 stop16h 51m

Ontario

Mon 5/11

10:59 am-9:35 am

1 stop13h 36m

$863

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Fri 5/8

4:00 pm-10:09 am

1 stop27h 09m

Ontario

Tue 5/12

12:19 pm-2:25 pm

2 stops17h 06m

$865

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 5/11

3:55 pm-11:46 pm

1 stop16h 51m

Ontario

Tue 5/26

12:40 pm-2:25 pm

1 stop16h 45m

$871

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 5/13

3:55 pm-11:46 pm

1 stop16h 51m

Ontario

Tue 5/26

2:18 pm-2:25 pm

1 stop15h 07m

$873

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 6/1

9:50 am-6:36 pm

1 stop17h 46m

Ontario

Sat 7/25

11:48 am-12:15 pm

1 stop15h 27m

$874

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 5/4

6:00 am-5:15 pm

2 stops20h 15m

Ontario

Sun 5/24

1:35 pm-4:25 pm

2 stops17h 50m

$877

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Sat 5/9

3:55 pm-11:46 pm

1 stop16h 51m

Ontario

Wed 5/13

10:59 am-9:35 am

1 stop13h 36m

$879

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

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

Can stopping save me money on Madrid to Ontario flights?

You could potentially save up to 3% 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 51m

Direct flights

None
The fastest flight from Madrid to Ontario takes 16h 51m
There are no direct flights from Madrid to Ontario. There are no popular flight routes from Madrid to Ontario.
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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 51m.

  • 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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