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.

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.

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

Virgin Atlantic, Air Canada, and United Airlines are the most popular carriers operating from Ontario to Barcelona-El Prat

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 46% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 23 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.

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 November 2025, there are 5 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.

$502 Cheap Flights from Ontario to Barcelona-El Prat Airport in 2025/26

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Find the cheapest flights from Ontario to Barcelona

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Enter your travel dates to find the best prices.

1:34 pm - 9:35 amONT-BCN

35h 01m2 stops

1:35 pm - 8:42 pmBCN-ONT

40h 07m2 stops

$674Air Canada

Find Deal

Tue, Dec 2 - Thu, Dec 11

10:58 am - 8:50 amONT-BCN

12h 52m1 stop

10:40 am - 6:40 pmBCN-ONT

17h 00m1 stop

$682British Airways

Find Deal

Wed, Feb 4 - Wed, Feb 18

7:05 am - 8:40 amONT-BCN

16h 35m1 stop

10:55 am - 7:39 pmBCN-ONT

17h 44m1 stop

$683Delta

Find Deal

Tue, Nov 18 - Fri, Dec 12

7:00 am - 1:10 pmONT-BCN

21h 10m1 stop

6:50 am - 10:49 pmBCN-ONT

24h 59m2 stops

$685United Airlines

Find Deal

Wed, Nov 26 - Tue, Dec 16

6:00 am - 11:10 amONT-BCN

20h 10m2 stops

10:55 am - 11:04 pmBCN-ONT

21h 09m1 stop

$686Delta

Find Deal

Wed, Nov 26 - Thu, Dec 4

6:05 am - 9:00 amONT-BCN

17h 55m2 stops

3:05 pm - 10:31 pmBCN-ONT

16h 26m1 stop

$687United Airlines

Find Deal

Tue, Nov 18 - Tue, Nov 25

6:41 pm - 9:35 amONT-BCN

29h 54m2 stops

1:35 pm - 12:32 pmBCN-ONT

31h 57m3 stops

$695Multiple Airlines

Find Deal

Tue, Dec 2 - Thu, Dec 11

7:16 am - 9:45 amONT-BCN

17h 29m2 stops

10:40 am - 10:48 pmBCN-ONT

21h 08m1 stop

$702Iberia

Find Deal

Sat, Jan 31 - Sun, Feb 8

10:58 am - 8:50 amONT-BCN

12h 52m1 stop

10:40 am - 6:45 pmBCN-ONT

17h 05m1 stop

$758Multiple Airlines

Find Deal

Mon, Feb 2 - Mon, Feb 9

7:10 am - 8:50 amONT-BCN

16h 40m1 stop

10:40 am - 10:02 pmBCN-ONT

19h 22m1 stop

$836Iberia

Find Deal

Mon, Mar 2 - Mon, Mar 16

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

Nov 26

ONT7:00 amOntario

21h 10m

1 stop

BCN1:10 pmBarcelona-El Prat

Dec 16

BCN6:50 amBarcelona-El Prat

24h 59m

2 stops

ONT10:49 pmOntario

$685

Find similar

United Airlines

Nov 18

ONT6:05 amOntario

17h 55m

2 stops

BCN9:00 amBarcelona-El Prat

Nov 25

BCN3:05 pmBarcelona-El Prat

16h 26m

1 stop

ONT10:31 pmOntario

$687

Find similar

United Airlines

Nov 18

ONT6:05 amOntario

17h 55m

2 stops

BCN9:00 amBarcelona-El Prat

Nov 27

BCN6:50 amBarcelona-El Prat

19h 44m

2 stops

ONT5:34 pmOntario

$689

Find similar

British Airways flights from Ontario to Barcelona-El Prat Airport

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

British Airways

Feb 4

ONT10:58 amOntario

12h 52m

1 stop

BCN8:50 amBarcelona-El Prat

Feb 18

BCN10:40 amBarcelona-El Prat

17h 00m

1 stop

ONT6:40 pmOntario

$682

Find similar

British Airways

Jan 13

ONT10:58 amOntario

12h 52m

1 stop

BCN8:50 amBarcelona-El Prat

Feb 13

BCN10:40 amBarcelona-El Prat

20h 51m

1 stop

ONT10:31 pmOntario

$711

Find similar

British Airways

Nov 18

ONT4:47 pmOntario

17h 58m

2 stops

BCN7:45 pmBarcelona-El Prat

Nov 25

BCN11:20 amBarcelona-El Prat

19h 39m

2 stops

ONT9:59 pmOntario

$727

Find similar

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 12/2

1:34 pm-9:35 am

2 stops35h 01m

Barcelona-El Prat

Thu 12/11

1:35 pm-8:42 pm

2 stops40h 07m

$674

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 2/4

10:58 am-8:50 am

1 stop12h 52m

Barcelona-El Prat

Wed 2/18

10:40 am-6:40 pm

1 stop17h 00m

$682

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 11/18

7:05 am-8:40 am

1 stop16h 35m

Barcelona-El Prat

Fri 12/12

10:55 am-7:39 pm

1 stop17h 44m

$683

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 11/26

7:00 am-1:10 pm

1 stop21h 10m

Barcelona-El Prat

Tue 12/16

6:50 am-10:49 pm

2 stops24h 59m

$685

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 11/26

6:00 am-11:10 am

2 stops20h 10m

Barcelona-El Prat

Thu 12/4

10:55 am-11:04 pm

1 stop21h 09m

$686

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 11/18

6:05 am-9:00 am

2 stops17h 55m

Barcelona-El Prat

Tue 11/25

3:05 pm-10:31 pm

1 stop16h 26m

$687

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 12/2

6:41 pm-9:35 am

2 stops29h 54m

Barcelona-El Prat

Thu 12/11

1:35 pm-12:32 pm

3 stops31h 57m

$695

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 1/31

7:16 am-9:45 am

2 stops17h 29m

Barcelona-El Prat

Sun 2/8

10:40 am-10:48 pm

1 stop21h 08m

$702

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 2/2

10:58 am-8:50 am

1 stop12h 52m

Barcelona-El Prat

Mon 2/9

10:40 am-6:45 pm

1 stop17h 05m

$758

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 3/2

7:10 am-8:50 am

1 stop16h 40m

Barcelona-El Prat

Mon 3/16

10:40 am-10:02 pm

1 stop19h 22m

$836

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 typical price of a round-trip flight between Ontario and Barcelona-El Prat Airport?

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 $688.

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 $600. 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 Friday because tickets tend to average around $838. 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 $782 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 $1,081 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 66% 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

Direct flights	None

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.

Search flight deals

How far is Ontario to Barcelona-El Prat by plane?
Barcelona-El Prat is 5972.8 mi away from Ontario. 12h 52m 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 November 2025, there are 5 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 32% of the total bookings. Other popular airlines include Iberia with 29%, Delta with 16%, and American Airlines with 13%.

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
British Airways	PriceFrom $544	Free Cancellation	Rating 6.7 7,496 reviews	Search British Airways flights
Iberia	PriceFrom $605	Free Cancellation	Rating 7.0 3,007 reviews	Search Iberia flights
Delta	PriceFrom $609	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
United Airlines	PriceFrom $682	Free Cancellation	Rating 7.4 9,003 reviews	Search United Airlines flights
American Airlines	PriceFrom $982	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights

Lloret de Mar

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Castelldefels

El Prat de Llobregat

L'Hospitalet de Llobregat

Tarragona

Santa Susanna

Cambrils

Cadaques

Empuriabrava

Pineda de Mar

Roses

Badalona

Calella

Pals

Palafrugell

Tortosa

La Pineda

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.

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

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Cheap flights from Ontario to Barcelona from $502

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 3/28. 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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Filter for what you want

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Find the cheapest flights from Ontario to Barcelona

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United Airlines flights from Ontario to Barcelona-El Prat Airport

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

British Airways flights from Ontario to Barcelona-El Prat Airport

Our best British Airways 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.

See travel insights to Barcelona from

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

What is the typical price of a round-trip flight between Ontario and 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 66% 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?

Virgin Atlantic, Air Canada, 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

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.

Find better results for your trip to Barcelona

Popular cities in Spain

Popular flights according to clicks in the last 7 days on momondo