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Cheap flights from Madrid to Los Angeles from $463

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 8/24. 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.
KLM Logo
11:55 am - 10:14 pm
MAD
-
ONT
18h 19m
1 stop
KLM Logo
12:00 pm - 10:55 am
ONT
-
MAD
13h 55m
1 stop
$736KLM
Fri, Oct 30 - Fri, Jan 29
British Airways Logo
12:40 pm - 8:09 pm
MAD
-
ONT
16h 29m
1 stop
British Airways Logo
10:25 am - 9:05 am
ONT
-
MAD
13h 40m
1 stop
$763British Airways
Wed, Sep 16 - Wed, Sep 30
British Airways Logo
3:55 pm - 11:06 pm
MAD
-
ONT
16h 11m
1 stop
British Airways Logo
10:25 am - 9:20 am
ONT
-
MAD
14h 55m
1 stop
$764British Airways
Mon, Oct 19 - Thu, Oct 29
KLM Logo
9:50 am - 6:04 pm
MAD
-
ONT
17h 14m
1 stop
KLM Logo
11:59 am - 12:15 pm
ONT
-
MAD
15h 16m
1 stop
$765KLM
Thu, Sep 17 - Sat, Oct 3
British Airways Logo
12:40 pm - 8:04 pm
MAD
-
ONT
16h 24m
1 stop
British Airways Logo
10:25 am - 9:20 am
ONT
-
MAD
14h 55m
1 stop
$766British Airways
Thu, Oct 8 - Tue, Oct 27
British Airways Logo
12:40 pm - 8:04 pm
MAD
-
ONT
16h 24m
1 stop
British Airways Logo
10:47 am - 9:20 am
ONT
-
MAD
13h 33m
1 stop
$770British Airways
Wed, Oct 7 - Wed, Nov 4
British Airways Logo
1:00 pm - 11:57 pm
MAD
-
ONT
19h 57m
1 stop
British Airways Logo
7:00 am - 11:55 am
ONT
-
MAD
19h 55m
2 stops
$771British Airways
Fri, Nov 13 - Tue, Nov 17
British Airways Logo
1:00 pm - 11:57 pm
MAD
-
ONT
19h 57m
1 stop
British Airways Logo
2:59 pm - 6:30 pm
ONT
-
MAD
18h 31m
2 stops
$772British Airways
Fri, Nov 13 - Tue, Nov 17
British Airways Logo
10:35 am - 11:57 pm
MAD
-
ONT
22h 22m
2 stops
British Airways Logo
2:59 pm - 8:00 pm
ONT
-
MAD
20h 01m
2 stops
$775British Airways
Fri, Nov 13 - Tue, Nov 17
British Airways Logo
10:35 am - 11:57 pm
MAD
-
ONT
22h 22m
2 stops
British Airways Logo
7:00 am - 11:55 am
ONT
-
MAD
19h 55m
2 stops
$776British Airways
Fri, Nov 13 - Tue, Nov 17

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American Airlines flights from Madrid to Ontario

Our best American Airlines deals on Madrid to Ontario flight tickets
American Airlines
Sep 8
MAD3:55 pmMadrid Barajas
16h 04m
1 stop
ONT10:59 pmOntario
Sep 13
ONT10:25 amOntario
13h 40m
1 stop
MAD9:05 amMadrid Barajas
$804
American Airlines
Aug 28
MAD3:55 pmMadrid Barajas
16h 04m
1 stop
ONT10:59 pmOntario
Sep 25
ONT10:25 amOntario
13h 40m
1 stop
MAD9:05 amMadrid Barajas
$866
American Airlines
Nov 15
MAD1:00 pmMadrid Barajas
18h 23m
1 stop
ONT10:23 pmOntario
Dec 6
ONT10:47 amOntario
13h 33m
1 stop
MAD9:20 amMadrid Barajas
$867

Iberia flights from Madrid to Ontario

Our best Iberia deals on Madrid to Ontario flight tickets
Iberia
Sep 2
MAD3:55 pmMadrid Barajas
16h 04m
1 stop
ONT10:59 pmOntario
Oct 14
ONT12:35 pmOntario
16h 50m
1 stop
MAD2:25 pmMadrid Barajas
$788
Iberia
Oct 30
MAD1:00 pmMadrid Barajas
18h 06m
1 stop
ONT11:06 pmOntario
Jan 29
ONT7:16 amOntario
17h 04m
1 stop
MAD9:20 amMadrid Barajas
$807
Iberia
Nov 6
MAD1:00 pmMadrid Barajas
18h 23m
1 stop
ONT10:23 pmOntario
Nov 11
ONT10:47 amOntario
13h 33m
1 stop
MAD9:20 amMadrid Barajas
$817

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 June 11, 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

Fri 10/30

11:55 am-10:14 pm

1 stop18h 19m

Ontario

Fri 1/29

12:00 pm-10:55 am

1 stop13h 55m

$736

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 9/16

12:40 pm-8:09 pm

1 stop16h 29m

Ontario

Wed 9/30

10:25 am-9:05 am

1 stop13h 40m

$763

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Mon 10/19

3:55 pm-11:06 pm

1 stop16h 11m

Ontario

Thu 10/29

10:25 am-9:20 am

1 stop14h 55m

$764

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 9/17

9:50 am-6:04 pm

1 stop17h 14m

Ontario

Sat 10/3

11:59 am-12:15 pm

1 stop15h 16m

$765

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Thu 10/8

12:40 pm-8:04 pm

1 stop16h 24m

Ontario

Tue 10/27

10:25 am-9:20 am

1 stop14h 55m

$766
Quickest round-trip

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Wed 10/7

12:40 pm-8:04 pm

1 stop16h 24m

Ontario

Wed 11/4

10:47 am-9:20 am

1 stop13h 33m

$770

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Fri 11/13

1:00 pm-11:57 pm

1 stop19h 57m

Ontario

Tue 11/17

7:00 am-11:55 am

2 stops19h 55m

$771

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Fri 11/13

1:00 pm-11:57 pm

1 stop19h 57m

Ontario

Tue 11/17

2:59 pm-6:30 pm

2 stops18h 31m

$772

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Fri 11/13

10:35 am-11:57 pm

2 stops22h 22m

Ontario

Tue 11/17

2:59 pm-8:00 pm

2 stops20h 01m

$775

MadridOntario

MAD - ONT

MADONT

Madrid Barajas

Fri 11/13

10:35 am-11:57 pm

2 stops22h 22m

Ontario

Tue 11/17

7:00 am-11:55 am

2 stops19h 55m

$776

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 cheapest month to fly to Ontario?

In general, October is the cheapest month to fly from Madrid to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel during the month of October, then book flights to Ontario from Madrid during November instead. Flights to Ontario in November, while not as cheap as those in October, still average around $484.

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

15h 18m

Direct flights

None
The fastest flight from Madrid to Ontario takes 15h 18m
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 15h 18m.

  • 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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