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Cheap flights from Barcelona-El Prat Airport to Los Angeles from $413

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 10/7. 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 Barcelona-El Prat Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:40 am - 8:01 pm
BCN
-
ONT
22h 21m
2 stops
United Airlines Logo
8:03 am - 2:20 pm
ONT
-
BCN
21h 17m
1 stop
$592United Airlines
Tue, Sep 22 - Wed, Oct 7
United Airlines Logo
1:50 pm - 10:59 pm
BCN
-
ONT
18h 09m
2 stops
United Airlines Logo
6:00 am - 8:20 am
ONT
-
BCN
17h 20m
2 stops
$593United Airlines
Thu, Oct 1 - Sun, Oct 4
United Airlines Logo
1:50 pm - 11:06 pm
BCN
-
ONT
18h 16m
2 stops
United Airlines Logo
6:02 am - 9:00 am
ONT
-
BCN
17h 58m
2 stops
$594United Airlines
Sat, Nov 21 - Fri, Dec 4
British Airways Logo
10:45 am - 10:37 pm
BCN
-
ONT
20h 52m
1 stop
British Airways Logo
1:31 pm - 8:40 pm
ONT
-
BCN
22h 09m
2 stops
$595British Airways
Tue, Sep 29 - Mon, Oct 5
Delta Logo
6:00 am - 4:12 pm
BCN
-
ONT
19h 12m
2 stops
Delta Logo
12:00 pm - 2:00 pm
ONT
-
BCN
17h 00m
2 stops
$598Delta
Sat, Nov 21 - Sat, Dec 5
United Airlines Logo
4:10 pm - 10:59 pm
BCN
-
ONT
15h 49m
1 stop
United Airlines Logo
1:52 pm - 2:20 pm
ONT
-
BCN
15h 28m
1 stop
$603United Airlines
Sat, Oct 3 - Fri, Oct 9
United Airlines Logo
3:15 pm - 10:49 pm
BCN
-
ONT
16h 34m
1 stop
United Airlines Logo
11:10 am - 2:20 pm
ONT
-
BCN
18h 10m
1 stop
$604United Airlines
Tue, Sep 29 - Sun, Oct 4
United Airlines Logo
10:30 am - 8:20 pm
BCN
-
ONT
18h 50m
2 stops
United Airlines Logo
5:00 am - 8:20 am
ONT
-
BCN
18h 20m
2 stops
$605United Airlines
Fri, Nov 6 - Tue, Nov 10
Multiple Airlines Logo
1:15 pm - 10:59 pm
BCN
-
ONT
18h 44m
2 stops
Multiple Airlines Logo
7:00 am - 8:00 am
ONT
-
BCN
16h 00m
2 stops
$615Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
1:15 pm - 10:35 pm
BCN
-
ONT
18h 20m
2 stops
Multiple Airlines Logo
7:00 am - 8:00 am
ONT
-
BCN
16h 00m
2 stops
$617Multiple Airlines
Wed, Sep 2 - Sun, Sep 13

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Iberia flights from Barcelona-El Prat Airport to Ontario

Our best Iberia deals on Barcelona-El Prat Airport to Ontario flight tickets
Iberia
Oct 14
BCN1:30 pmBarcelona-El Prat
18h 36m
1 stop
ONT11:06 pmOntario
Oct 21
ONT10:25 amOntario
14h 45m
1 stop
BCN10:10 amBarcelona-El Prat
$627
Iberia
Sep 16
BCN10:45 amBarcelona-El Prat
18h 24m
1 stop
ONT8:09 pmOntario
Sep 30
ONT8:25 amOntario
16h 45m
1 stop
BCN10:10 amBarcelona-El Prat
$639
Iberia
Sep 18
BCN10:45 amBarcelona-El Prat
18h 24m
1 stop
ONT8:09 pmOntario
Nov 3
ONT10:47 amOntario
13h 03m
1 stop
BCN8:50 amBarcelona-El Prat
$646

United Airlines flights from Barcelona-El Prat Airport to Ontario

Our best United Airlines deals on Barcelona-El Prat Airport to Ontario flight tickets
United Airlines
Oct 1
BCN1:50 pmBarcelona-El Prat
18h 09m
2 stops
ONT10:59 pmOntario
Oct 4
ONT6:00 amOntario
17h 20m
2 stops
BCN8:20 amBarcelona-El Prat
$593
United Airlines
Nov 2
BCN6:50 amBarcelona-El Prat
19h 57m
2 stops
ONT5:47 pmOntario
Nov 12
ONT6:02 amOntario
17h 18m
2 stops
BCN8:20 amBarcelona-El Prat
$594
United Airlines
Sep 29
BCN3:15 pmBarcelona-El Prat
16h 34m
1 stop
ONT10:49 pmOntario
Oct 4
ONT11:10 amOntario
18h 10m
1 stop
BCN2:20 pmBarcelona-El Prat
$604

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 June 17, 2026.
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

Cheapest round-trip

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Tue 9/22

6:40 am-8:01 pm

2 stops22h 21m

Ontario

Wed 10/7

8:03 am-2:20 pm

1 stop21h 17m

$592

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Thu 10/1

1:50 pm-10:59 pm

2 stops18h 09m

Ontario

Sun 10/4

6:00 am-8:20 am

2 stops17h 20m

$593

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Sat 11/21

1:50 pm-11:06 pm

2 stops18h 16m

Ontario

Fri 12/4

6:02 am-9:00 am

2 stops17h 58m

$594

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Tue 9/29

10:45 am-10:37 pm

1 stop20h 52m

Ontario

Mon 10/5

1:31 pm-8:40 pm

2 stops22h 09m

$595

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Sat 11/21

6:00 am-4:12 pm

2 stops19h 12m

Ontario

Sat 12/5

12:00 pm-2:00 pm

2 stops17h 00m

$598
Quickest round-trip

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Sat 10/3

4:10 pm-10:59 pm

1 stop15h 49m

Ontario

Fri 10/9

1:52 pm-2:20 pm

1 stop15h 28m

$603

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Tue 9/29

3:15 pm-10:49 pm

1 stop16h 34m

Ontario

Sun 10/4

11:10 am-2:20 pm

1 stop18h 10m

$604

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Fri 11/6

10:30 am-8:20 pm

2 stops18h 50m

Ontario

Tue 11/10

5:00 am-8:20 am

2 stops18h 20m

$605

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Fri 9/11

1:15 pm-10:59 pm

2 stops18h 44m

Ontario

Fri 9/18

7:00 am-8:00 am

2 stops16h 00m

$615

BarcelonaOntario

BCN - ONT

BCNONT

Barcelona-El Prat

Wed 9/2

1:15 pm-10:35 pm

2 stops18h 20m

Ontario

Sun 9/13

7:00 am-8:00 am

2 stops16h 00m

$617

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 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 45% 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

15h 49m

Direct flights

None
The fastest flight from Barcelona-El Prat Airport to Ontario takes 15h 49m
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

Frequently asked questions about flying from Barcelona-El Prat Airport to Ontario

  • 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 15h 49m, 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.

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Fri 7/17
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