What airlines fly to Barcelona-El Prat Airport?

Iberia, LEVEL and Vueling are the top three most popular airlines that fly to Barcelona-El Prat Airport from Ontario according to our data. Iberia is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 22 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Ontario to Barcelona-El Prat Airport?

Dallas (DFW) has the shortest average layover time for this route: 2h 12m.

What is the cheapest airline that flies from Ontario to Barcelona-El Prat?

British Airways and United Airlines are the most popular carriers operating from Ontario to Barcelona-El Prat

Which layover airport has the shortest travel time from Ontario to Barcelona-El Prat Airport?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 14h 15m.

Which airport is the most popular layover for flights between Ontario and Barcelona-El Prat Airport?

Dallas (DFW) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Barcelona-El Prat Airport?

Flights via Dallas (DFW) offer the lowest average round-trip price of $1,134.

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

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

How many operators does momondo search for flights from Ontario Airport to Barcelona-El Prat Airport?

As of February 2026, there are 4 operators available to choose from for flights from Ontario Airport to Barcelona-El Prat Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Barcelona-El Prat Airport.

What documentation or ID do you need to fly to Barcelona-El Prat Airport?

The required travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Barcelona-El Prat Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$278 Cheap Flights from Ontario to Barcelona-El Prat Airport in 2026

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Find the cheapest flights from Ontario to Barcelona

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:39 pm - 6:25 pm

ONT

BCN

18h 46m

2 stops

9:35 am - 11:59 pm

BCN

ONT

22h 24m

1 stop

$834British Airways

Tue, Mar 3 - Thu, Mar 12

5:15 am - 9:00 am

ONT

BCN

19h 45m

2 stops

1:15 pm - 5:47 pm

BCN

ONT

37h 32m

2 stops

$835United Airlines

Mon, Mar 23 - Tue, Mar 31

1:45 pm - 9:35 am

ONT

BCN

34h 50m

2 stops

12:35 pm - 10:18 pm

BCN

ONT

41h 43m

2 stops

$836United Airlines

Tue, Mar 3 - Wed, Mar 11

6:00 am - 8:50 am

ONT

BCN

17h 50m

1 stop

9:35 am - 11:59 pm

BCN

ONT

22h 24m

1 stop

$843British Airways

Tue, Mar 3 - Thu, Mar 12

2:39 pm - 6:25 pm

ONT

BCN

18h 46m

2 stops

9:00 pm - 10:07 pm

BCN

ONT

33h 07m

2 stops

$844British Airways

Tue, Mar 3 - Mon, Mar 9

12:49 pm - 12:50 pm

ONT

BCN

15h 01m

1 stop

11:00 am - 6:33 pm

BCN

ONT

16h 33m

1 stop

$846KLM

Wed, Apr 15 - Fri, May 1

6:14 am - 1:35 pm

ONT

BCN

22h 21m

2 stops

11:50 am - 10:44 pm

BCN

ONT

18h 54m

2 stops

$848Multiple Airlines

Wed, Mar 4 - Tue, Mar 10

12:50 pm - 3:00 pm

ONT

BCN

18h 10m

2 stops

11:00 am - 9:00 pm

BCN

ONT

19h 00m

1 stop

$850Multiple Airlines

Mon, Mar 23 - Tue, Mar 31

6:00 am - 7:35 am

ONT

BCN

16h 35m

1 stop

10:45 am - 10:09 am

BCN

ONT

32h 24m

1 stop

$851British Airways

Tue, Apr 21 - Fri, May 1

7:00 am - 8:00 am

ONT

BCN

16h 00m

2 stops

12:15 pm - 10:26 pm

BCN

ONT

19h 11m

2 stops

$852Multiple Airlines

Wed, Apr 15 - Tue, Apr 21

Delta flights from Ontario to Barcelona-El Prat Airport

Our best Delta deals on Ontario to Barcelona-El Prat Airport flight tickets

Delta

Mar 30

ONT12:57 pmOntario

14h 53m

1 stop

BCN12:50 pmBarcelona-El Prat

Apr 9

BCN11:00 amBarcelona-El Prat

19h 00m

1 stop

ONT9:00 pmOntario

$874

Delta

Mar 29

ONT10:25 pmOntario

29h 25m

1 stop

BCN12:50 pmBarcelona-El Prat

Apr 8

BCN11:00 amBarcelona-El Prat

19h 00m

1 stop

ONT9:00 pmOntario

$883

Delta

Mar 30

ONT12:57 pmOntario

14h 53m

1 stop

BCN12:50 pmBarcelona-El Prat

Apr 7

BCN12:20 pmBarcelona-El Prat

44h 31m

2 stops

ONT11:51 pmOntario

$899

United Airlines flights from Ontario to Barcelona-El Prat Airport

Our best United Airlines deals on Ontario to Barcelona-El Prat Airport flight tickets

United Airlines

Mar 23

ONT5:15 amOntario

19h 45m

2 stops

BCN9:00 amBarcelona-El Prat

Mar 31

BCN1:15 pmBarcelona-El Prat

37h 32m

2 stops

ONT5:47 pmOntario

$835

United Airlines

Mar 3

ONT1:45 pmOntario

34h 50m

2 stops

BCN9:35 amBarcelona-El Prat

Mar 11

BCN12:35 pmBarcelona-El Prat

41h 43m

2 stops

ONT10:18 pmOntario

$836

United Airlines

Mar 23

ONT11:59 pmOntario

25h 01m

2 stops

BCN9:00 amBarcelona-El Prat

Mar 30

BCN10:25 amBarcelona-El Prat

44h 25m

2 stops

ONT9:50 pmOntario

$875

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 3/3

2:39 pm-6:25 pm

2 stops18h 46m

Barcelona-El Prat

Thu 3/12

9:35 am-11:59 pm

1 stop22h 24m

$834

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 3/23

5:15 am-9:00 am

2 stops19h 45m

Barcelona-El Prat

Tue 3/31

1:15 pm-5:47 pm

2 stops37h 32m

$835

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 3/3

1:45 pm-9:35 am

2 stops34h 50m

Barcelona-El Prat

Wed 3/11

12:35 pm-10:18 pm

2 stops41h 43m

$836

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 3/3

6:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Thu 3/12

9:35 am-11:59 pm

1 stop22h 24m

$843

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 3/3

2:39 pm-6:25 pm

2 stops18h 46m

Barcelona-El Prat

Mon 3/9

9:00 pm-10:07 pm

2 stops33h 07m

$844

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 4/15

12:49 pm-12:50 pm

1 stop15h 01m

Barcelona-El Prat

Fri 5/1

11:00 am-6:33 pm

1 stop16h 33m

$846

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 3/4

6:14 am-1:35 pm

2 stops22h 21m

Barcelona-El Prat

Tue 3/10

11:50 am-10:44 pm

2 stops18h 54m

$848

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 3/23

12:50 pm-3:00 pm

2 stops18h 10m

Barcelona-El Prat

Tue 3/31

11:00 am-9:00 pm

1 stop19h 00m

$850

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 4/21

6:00 am-7:35 am

1 stop16h 35m

Barcelona-El Prat

Fri 5/1

10:45 am-10:09 am

1 stop32h 24m

$851

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 4/15

7:00 am-8:00 am

2 stops16h 00m

Barcelona-El Prat

Tue 4/21

12:15 pm-10:26 pm

2 stops19h 11m

$852

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Layovers

What is the cheapest month to fly to Barcelona-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from Ontario is in January. Flight prices, which tend to average around $540, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Barcelona-El Prat Airport from Ontario during March instead. Flights to Barcelona-El Prat Airport in March, while not as cheap as those in January, still average around $772.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Tuesday when prices can be found for as low as $678. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $846. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from Ontario in the evening is the least expensive time of day to depart. momondo users have found prices as low as $802 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,060 on average. Flights to Barcelona-El Prat Airport from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Ontario to Barcelona-El Prat Airport flights?

You could potentially save up to 8% on your flight if you consider stops on a Ontario to Barcelona-El Prat Airport flight.

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

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

Estimated round-trip price

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

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

Fastest flight time	14h 45m
Direct flights	None

The fastest flight from Ontario to Barcelona-El Prat Airport takes 14h 45m

There are no direct flights from Ontario to Barcelona-El Prat Airport. There are no popular flight routes from Ontario to Barcelona-El Prat Airport.

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How far is Ontario to Barcelona-El Prat by plane?
Barcelona-El Prat is 5972.8 mi away from Ontario. 14h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Barcelona-El Prat Airport?
Prices for flights from Ontario Airport to Barcelona-El Prat Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Barcelona-El Prat Airport?
As of February 2026, there are 4 operators available to choose from for flights from Ontario Airport to Barcelona-El Prat Airport.
How old do you have to be to fly from Ontario Airport to Barcelona-El Prat Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Barcelona-El Prat Airport.
What documentation or ID do you need to fly to Barcelona-El Prat Airport?
The required travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Barcelona-El Prat Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Barcelona-El Prat Airport?
Based on momondo bookings for flights between Ontario and Barcelona-El Prat Airport, the leading airline is United Airlines, making up 41% of the total bookings. Other popular airlines include Iberia with 31%, British Airways with 17%, and American Airlines with 11%.

Best airlines flying from Ontario to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Ontario to Barcelona-El Prat Airport with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $605	Free Cancellation	Rating 7.0 3,106 reviews	Search Iberia flights
British Airways	PriceFrom $645	Free Cancellation	Rating 6.7 7,719 reviews	Search British Airways flights
United Airlines	PriceFrom $688	Free Cancellation	Rating 7.4 9,245 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,005	Free Cancellation	Rating 7.2 11,247 reviews	Search American Airlines flights

Lloret de Mar

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Castelldefels

L'Hospitalet de Llobregat

Santa Susanna

Calella

Cadaques

Cambrils

Pals

Empuriabrava

Pineda de Mar

Roses

Badalona

Malgrat de Mar

Palafrugell

Tortosa

Why use momondo?

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

It is quick and easy to find Ontario to Barcelona flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Barcelona that suits you.

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

All flight searches from Ontario to Barcelona on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Barcelona.

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

Of course. momondo tracks the price of Ontario to Barcelona flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Ontario to Barcelona from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Barcelona departing on 4/16. 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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Delta flights from Ontario to Barcelona-El Prat Airport

Our best Delta deals on Ontario to Barcelona-El Prat Airport flight tickets

United Airlines flights from Ontario to Barcelona-El Prat Airport

Our best United Airlines deals on Ontario to Barcelona-El Prat Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Barcelona-El Prat Airport that are best for you.

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

What is the cheapest month to fly to Barcelona-El Prat Airport?

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Can stopping save me money on Ontario to Barcelona-El Prat Airport flights?

You could potentially save up to 8% on your flight if you consider stops on a Ontario to Barcelona-El Prat Airport flight.

What is the cheapest airline that flies from Ontario to Barcelona-El Prat?

British Airways and United Airlines are the most popular carriers operating from Ontario to Barcelona-El Prat

What airlines fly to Barcelona-El Prat Airport?

Which airport is the most popular layover for flights between Ontario and Barcelona-El Prat Airport?

Dallas (DFW) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Barcelona-El Prat Airport?

Flights via Dallas (DFW) offer the lowest average round-trip price of $1,134.

Which layover airport has the shortest travel time from Ontario to Barcelona-El Prat Airport?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 14h 15m.

Which layover airport has the shortest connection time from Ontario to Barcelona-El Prat Airport?

Dallas (DFW) has the shortest average layover time for this route: 2h 12m.

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

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

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

Fastest flight time

Direct flights

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

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

How many operators does momondo search for flights from Ontario Airport to Barcelona-El Prat Airport?

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

What documentation or ID do you need to fly to Barcelona-El Prat Airport?

What is the most popular airline from Ontario to Barcelona-El Prat Airport?

Best airlines flying from Ontario to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Ontario to Barcelona-El Prat Airport with momondo

Traveling to a place near Barcelona?

Why use momondo?

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

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

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

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

An easier way to manage your Barcelona-El Prat Airport 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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