Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Barcelona-El Prat Airport to Los Angeles from $455

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona-El Prat Airport to Los Angeles departing on 2/3. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Barcelona-El Prat Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
10:40 am - 6:39 pm
BCN
-
ONT
16h 59m1 stop
British Airways Logo
10:59 am - 8:50 am
ONT
-
BCN
12h 51m1 stop
$598British Airways
Wed, Feb 25 - Mon, Mar 2
British Airways Logo
10:40 am - 6:45 pm
BCN
-
ONT
17h 05m1 stop
British Airways Logo
7:16 am - 8:50 am
ONT
-
BCN
16h 34m1 stop
$599British Airways
Thu, Jan 22 - Thu, Feb 5
British Airways Logo
10:40 am - 6:39 pm
BCN
-
ONT
16h 59m1 stop
British Airways Logo
10:59 am - 8:50 am
ONT
-
BCN
12h 51m1 stop
$610British Airways
Thu, Feb 12 - Thu, Feb 19
American Airlines Logo
10:40 am - 6:45 pm
BCN
-
ONT
17h 05m1 stop
American Airlines Logo
10:58 am - 8:50 am
ONT
-
BCN
12h 52m1 stop
$616American Airlines
Wed, Jan 21 - Sun, Jan 25
Iberia Logo
10:40 am - 10:48 pm
BCN
-
ONT
21h 08m1 stop
Iberia Logo
10:59 am - 8:50 am
ONT
-
BCN
12h 51m1 stop
$635Iberia
Mon, Feb 2 - Tue, Feb 24
Iberia Logo
10:40 am - 2:18 pm
BCN
-
ONT
36h 38m1 stop
Iberia Logo
10:58 am - 8:50 am
ONT
-
BCN
12h 52m1 stop
$651Iberia
Fri, Feb 6 - Tue, Feb 10
Iberia Logo
6:40 am - 2:18 pm
BCN
-
ONT
40h 38m2 stops
Iberia Logo
7:16 am - 8:50 am
ONT
-
BCN
16h 34m1 stop
$657Iberia
Fri, Feb 6 - Tue, Feb 10
Iberia Logo
10:40 am - 11:58 pm
BCN
-
ONT
22h 18m1 stop
Iberia Logo
7:10 am - 8:50 am
ONT
-
BCN
16h 40m1 stop
$659Iberia
Sun, Feb 22 - Wed, Mar 4
Iberia Logo
10:40 am - 10:31 pm
BCN
-
ONT
20h 51m1 stop
Iberia Logo
7:00 am - 7:50 am
ONT
-
BCN
16h 50m1 stop
$703Iberia
Mon, Mar 2 - Mon, Mar 16
Iberia Logo
10:45 am - 11:40 pm
BCN
-
ONT
21h 55m1 stop
Iberia Logo
12:55 pm - 7:35 am
ONT
-
BCN
33h 40m1 stop
$707Iberia
Mon, Apr 27 - Sat, May 9

British Airways flights from Barcelona-El Prat Airport to Ontario

Our best British Airways deals on Barcelona-El Prat Airport to Ontario flight tickets
British Airways
Feb 25
BCN10:40 amBarcelona-El Prat
16h 59m
1 stop
ONT6:39 pmOntario
Mar 2
ONT10:59 amOntario
12h 51m
1 stop
BCN8:50 amBarcelona-El Prat
$598
Find similar
British Airways
Jan 22
BCN10:40 amBarcelona-El Prat
17h 05m
1 stop
ONT6:45 pmOntario
Feb 5
ONT7:16 amOntario
16h 34m
1 stop
BCN8:50 amBarcelona-El Prat
$599
Find similar
British Airways
Feb 12
BCN10:40 amBarcelona-El Prat
16h 59m
1 stop
ONT6:39 pmOntario
Feb 19
ONT10:59 amOntario
12h 51m
1 stop
BCN8:50 amBarcelona-El Prat
$610
Find similar

American Airlines flights from Barcelona-El Prat Airport to Ontario

Our best American Airlines deals on Barcelona-El Prat Airport to Ontario flight tickets
American Airlines
Jan 21
BCN10:40 amBarcelona-El Prat
17h 05m
1 stop
ONT6:45 pmOntario
Jan 25
ONT10:58 amOntario
12h 52m
1 stop
BCN8:50 amBarcelona-El Prat
$616
Find similar
American Airlines
Jan 22
BCN10:40 amBarcelona-El Prat
17h 05m
1 stop
ONT6:45 pmOntario
Feb 5
ONT10:58 amOntario
12h 52m
1 stop
BCN8:50 amBarcelona-El Prat
$716
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat Airport 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 December 4, 2025.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Wed 2/25

10:40 am-6:39 pm

1 stop16h 59m

Ontario

Mon 3/2

10:59 am-8:50 am

1 stop12h 51m

$598

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Thu 1/22

10:40 am-6:45 pm

1 stop17h 05m

Ontario

Thu 2/5

7:16 am-8:50 am

1 stop16h 34m

$599

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Thu 2/12

10:40 am-6:39 pm

1 stop16h 59m

Ontario

Thu 2/19

10:59 am-8:50 am

1 stop12h 51m

$610

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Wed 1/21

10:40 am-6:45 pm

1 stop17h 05m

Ontario

Sun 1/25

10:58 am-8:50 am

1 stop12h 52m

$616

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Mon 2/2

10:40 am-10:48 pm

1 stop21h 08m

Ontario

Tue 2/24

10:59 am-8:50 am

1 stop12h 51m

$635

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Fri 2/6

10:40 am-2:18 pm

1 stop36h 38m

Ontario

Tue 2/10

10:58 am-8:50 am

1 stop12h 52m

$651

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Fri 2/6

6:40 am-2:18 pm

2 stops40h 38m

Ontario

Tue 2/10

7:16 am-8:50 am

1 stop16h 34m

$657

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Sun 2/22

10:40 am-11:58 pm

1 stop22h 18m

Ontario

Wed 3/4

7:10 am-8:50 am

1 stop16h 40m

$659

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Mon 3/2

10:40 am-10:31 pm

1 stop20h 51m

Ontario

Mon 3/16

7:00 am-7:50 am

1 stop16h 50m

$703

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Mon 4/27

10:45 am-11:40 pm

1 stop21h 55m

Ontario

Sat 5/9

12:55 pm-7:35 am

1 stop33h 40m

$707

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Barcelona-El Prat Airport 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 Barcelona-El Prat Airport to Ontario flights?

You could potentially save up to 67% on your flight if you consider stops on a Barcelona-El Prat Airport to Ontario flight.

When to book flights from Barcelona-El Prat Airport to Ontario

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

Cheap Barcelona-El Prat Airport to Ontario (BCN to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Barcelona-El Prat Airport to Ontario

Fastest flight time

16h 00m

Direct flights

None
The fastest flight from Barcelona-El Prat Airport to Ontario takes 16h 00m
There are no direct flights from Barcelona-El Prat Airport to Ontario. There are no popular flight routes from Barcelona-El Prat Airport to Ontario.
Search flight deals

  • How far is Barcelona-El Prat to Ontario by plane?

    The distance between Barcelona-El Prat and Ontario is about 5972.8 mi. Flights usually cover this in 16h 59m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Barcelona-El Prat Airport to Ontario Airport?

    Prices for flights from Barcelona-El Prat Airport to Ontario Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Barcelona-El Prat Airport to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Barcelona-El Prat Airport to Ontario Airport.

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

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Barcelona to Ontario. momondo saves you time and could save you money on your trip.

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

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

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

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

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

Price alerts on flights to Ontario from Barcelona 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.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/3
Sat 1/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States