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Cheap flights from Ontario to Barcelona from $260

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 1/14. 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

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Find the cheapest flights from Ontario to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
10:58 am - 12:40 pm
ONT
-
BCN
16h 42m2 stops
Iberia Logo
9:15 pm - 10:48 pm
BCN
-
ONT
34h 33m2 stops
$616Iberia
mar., ene. 20 - mar., ene. 27
Iberia Logo
10:58 am - 12:40 pm
ONT
-
BCN
16h 42m2 stops
Iberia Logo
10:40 am - 10:48 pm
BCN
-
ONT
21h 08m1 stop
$724Iberia
mar., ene. 20 - mar., ene. 27
Iberia Logo
10:58 am - 8:50 am
ONT
-
BCN
12h 52m1 stop
Iberia Logo
9:15 pm - 2:18 pm
BCN
-
ONT
26h 03m2 stops
$725Iberia
mié., ene. 14 - mié., feb. 4
Iberia Logo
6:00 am - 8:50 am
ONT
-
BCN
17h 50m1 stop
Iberia Logo
9:15 am - 10:48 pm
BCN
-
ONT
22h 33m2 stops
$791Iberia
jue., ene. 15 - mar., feb. 3
Iberia Logo
7:16 am - 8:50 am
ONT
-
BCN
16h 34m1 stop
Iberia Logo
3:05 pm - 2:18 pm
BCN
-
ONT
32h 13m2 stops
$807Iberia
mié., ene. 14 - mié., ene. 28
British Airways Logo
3:09 pm - 7:45 pm
ONT
-
BCN
19h 36m2 stops
British Airways Logo
10:40 am - 10:48 pm
BCN
-
ONT
21h 08m1 stop
$831British Airways
lun., ene. 12 - mar., ene. 27
British Airways Logo
10:58 am - 8:50 am
ONT
-
BCN
12h 52m1 stop
British Airways Logo
10:40 am - 6:45 pm
BCN
-
ONT
17h 05m1 stop
$841British Airways
lun., ene. 12 - mié., ene. 28
Multiple Airlines Logo
9:45 am - 1:15 pm
ONT
-
BCN
18h 30m2 stops
Multiple Airlines Logo
11:50 am - 11:56 pm
BCN
-
ONT
21h 06m2 stops
$842Multiple Airlines
dom., ene. 25 - vie., ene. 30
Iberia Logo
7:16 am - 8:50 am
ONT
-
BCN
16h 34m1 stop
Iberia Logo
10:40 am - 10:48 pm
BCN
-
ONT
21h 08m1 stop
$843Iberia
mié., ene. 14 - mié., feb. 4
American Airlines Logo
10:58 am - 2:40 pm
ONT
-
BCN
18h 42m2 stops
American Airlines Logo
12:30 pm - 10:48 pm
BCN
-
ONT
19h 18m2 stops
$844American Airlines
mié., ene. 14 - mié., ene. 28

Iberia flights from Ontario to Barcelona-El Prat Airport

Our best Iberia deals on Ontario to Barcelona-El Prat Airport flight tickets
Iberia
Jan 20
ONT10:58 amOntario
16h 42m
2 stops
BCN12:40 pmBarcelona-El Prat
Jan 27
BCN9:15 pmBarcelona-El Prat
34h 33m
2 stops
ONT10:48 pmOntario
$616
Find similar
Iberia
Jan 20
ONT10:58 amOntario
16h 42m
2 stops
BCN12:40 pmBarcelona-El Prat
Jan 27
BCN10:40 amBarcelona-El Prat
21h 08m
1 stop
ONT10:48 pmOntario
$724
Find similar
Iberia
Jan 14
ONT10:58 amOntario
12h 52m
1 stop
BCN8:50 amBarcelona-El Prat
Feb 4
BCN9:15 pmBarcelona-El Prat
26h 03m
2 stops
ONT2:18 pmOntario
$725
Find similar

American Airlines flights from Ontario to Barcelona-El Prat Airport

Our best American Airlines deals on Ontario to Barcelona-El Prat Airport flight tickets
American Airlines
Jan 14
ONT10:58 amOntario
18h 42m
2 stops
BCN2:40 pmBarcelona-El Prat
Jan 28
BCN12:30 pmBarcelona-El Prat
19h 18m
2 stops
ONT10:48 pmOntario
$844
Find similar
American Airlines
Jan 15
ONT10:58 amOntario
12h 52m
1 stop
BCN8:50 amBarcelona-El Prat
Jan 29
BCN10:40 amBarcelona-El Prat
17h 05m
1 stop
ONT6:45 pmOntario
$883
Find similar
American Airlines
Jan 15
ONT10:58 amOntario
12h 52m
1 stop
BCN8:50 amBarcelona-El Prat
Jan 29
BCN10:40 amBarcelona-El Prat
17h 05m
1 stop
ONT6:45 pmOntario
$884
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Barcelona-El Prat Airport 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 diciembre 8, 2025.
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

mar. 1/20

10:58 am-12:40 pm

2 stops16h 42m

Barcelona-El Prat

mar. 1/27

9:15 pm-10:48 pm

2 stops34h 33m

$616

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

mar. 1/20

10:58 am-12:40 pm

2 stops16h 42m

Barcelona-El Prat

mar. 1/27

10:40 am-10:48 pm

1 stop21h 08m

$724

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

mié. 1/14

10:58 am-8:50 am

1 stop12h 52m

Barcelona-El Prat

mié. 2/4

9:15 pm-2:18 pm

2 stops26h 03m

$725

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

jue. 1/15

6:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

mar. 2/3

9:15 am-10:48 pm

2 stops22h 33m

$791

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

mié. 1/14

7:16 am-8:50 am

1 stop16h 34m

Barcelona-El Prat

mié. 1/28

3:05 pm-2:18 pm

2 stops32h 13m

$807

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

lun. 1/12

3:09 pm-7:45 pm

2 stops19h 36m

Barcelona-El Prat

mar. 1/27

10:40 am-10:48 pm

1 stop21h 08m

$831

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

lun. 1/12

10:58 am-8:50 am

1 stop12h 52m

Barcelona-El Prat

mié. 1/28

10:40 am-6:45 pm

1 stop17h 05m

$841

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

dom. 1/25

9:45 am-1:15 pm

2 stops18h 30m

Barcelona-El Prat

vie. 1/30

11:50 am-11:56 pm

2 stops21h 06m

$842

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

mié. 1/14

7:16 am-8:50 am

1 stop16h 34m

Barcelona-El Prat

mié. 2/4

10:40 am-10:48 pm

1 stop21h 08m

$843

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

mié. 1/14

10:58 am-2:40 pm

2 stops18h 42m

Barcelona-El Prat

mié. 1/28

12:30 pm-10:48 pm

2 stops19h 18m

$844

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $709.

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 $613. 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 $833. 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 $787 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 25% 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 09m

Direct flights

None
The fastest flight from Ontario to Barcelona-El Prat Airport takes 14h 09m
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?

  • 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?

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 AirwaysPriceFrom $544Free CancellationRating
6.7
7,564 reviews
Search British Airways flights
IberiaPriceFrom $605Free CancellationRating
7.0
3,042 reviews
Search Iberia flights
United AirlinesPriceFrom $688Free CancellationRating
7.4
9,076 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,005Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tossa de Mar
El Prat de Llobregat
Castelldefels
L'Hospitalet de Llobregat
Tarragona
Santa Susanna
Cambrils
Cadaques
Empuriabrava
Roses
Calella
Pineda de Mar
Badalona
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.

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