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Cheap flights from Ontario to Barcelona from $458

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 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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.
Multiple Airlines Logo
11:58 am - 11:15 pm
ONT
-
BCN
26h 17m
2 stops
Multiple Airlines Logo
12:10 pm - 8:13 pm
BCN
-
ONT
41h 03m
2 stops
$907Multiple Airlines
Tue, Sep 1 - Mon, Oct 5
Turkish Airlines Logo
11:24 pm - 11:15 pm
ONT
-
BCN
38h 51m
2 stops
Turkish Airlines Logo
7:05 pm - 8:13 pm
BCN
-
ONT
58h 08m
2 stops
$921Turkish Airlines
Sat, Sep 5 - Tue, Sep 15
Multiple Airlines Logo
7:57 pm - 5:40 pm
ONT
-
BCN
36h 43m
2 stops
Multiple Airlines Logo
7:40 am - 11:16 am
BCN
-
ONT
36h 36m
2 stops
$967Multiple Airlines
Wed, Sep 2 - Sat, Sep 12
Turkish Airlines Logo
9:10 pm - 11:15 pm
ONT
-
BCN
41h 05m
2 stops
Turkish Airlines Logo
12:10 pm - 8:13 pm
BCN
-
ONT
41h 03m
2 stops
$1,004Turkish Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
6:00 am - 11:15 pm
ONT
-
BCN
32h 15m
2 stops
Multiple Airlines Logo
7:40 am - 11:16 am
BCN
-
ONT
36h 36m
2 stops
$1,007Multiple Airlines
Wed, Sep 2 - Sat, Sep 12
United Airlines Logo
6:00 am - 2:20 pm
ONT
-
BCN
23h 20m
1 stop
United Airlines Logo
12:15 pm - 10:26 pm
BCN
-
ONT
43h 11m
2 stops
$1,045United Airlines
Sun, Sep 27 - Tue, Oct 6
Multiple Airlines Logo
6:00 am - 11:15 pm
ONT
-
BCN
32h 15m
2 stops
Multiple Airlines Logo
7:40 am - 2:47 pm
BCN
-
ONT
40h 07m
2 stops
$1,056Multiple Airlines
Tue, Sep 29 - Sun, Oct 11
British Airways Logo
7:20 am - 10:10 am
ONT
-
BCN
17h 50m
1 stop
British Airways Logo
1:30 pm - 9:08 pm
BCN
-
ONT
16h 38m
1 stop
$1,060British Airways
Tue, Sep 29 - Tue, Oct 13
United Airlines Logo
1:44 pm - 2:20 pm
ONT
-
BCN
15h 36m
1 stop
United Airlines Logo
4:10 pm - 11:06 pm
BCN
-
ONT
15h 56m
1 stop
$1,065United Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
6:00 am - 5:40 pm
ONT
-
BCN
26h 40m
2 stops
Multiple Airlines Logo
6:30 pm - 11:09 am
BCN
-
ONT
49h 39m
2 stops
$1,067Multiple Airlines
Thu, Aug 27 - Sat, Dec 19

Turkish Airlines flights from Ontario to Barcelona-El Prat Airport

Our best Turkish Airlines deals on Ontario to Barcelona-El Prat Airport flight tickets
Turkish Airlines
Sep 5
ONT11:24 pmOntario
38h 51m
2 stops
BCN11:15 pmBarcelona-El Prat
Sep 15
BCN7:05 pmBarcelona-El Prat
58h 08m
2 stops
ONT8:13 pmOntario
$921
Turkish Airlines
Sep 21
ONT9:10 pmOntario
41h 05m
2 stops
BCN11:15 pmBarcelona-El Prat
Sep 29
BCN12:10 pmBarcelona-El Prat
41h 03m
2 stops
ONT8:13 pmOntario
$1,004
Turkish Airlines
Sep 29
ONT9:10 pmOntario
28h 35m
2 stops
BCN10:45 amBarcelona-El Prat
Oct 6
BCN12:10 pmBarcelona-El Prat
41h 03m
2 stops
ONT8:13 pmOntario
$1,108

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
Sep 29
ONT7:20 amOntario
17h 50m
1 stop
BCN10:10 amBarcelona-El Prat
Oct 13
BCN1:30 pmBarcelona-El Prat
16h 38m
1 stop
ONT9:08 pmOntario
$1,060
British Airways
May 6
ONT7:30 amOntario
15h 05m
1 stop
BCN7:35 amBarcelona-El Prat
May 12
BCN10:45 amBarcelona-El Prat
16h 53m
1 stop
ONT6:38 pmOntario
$1,088
British Airways
May 5
ONT7:30 amOntario
15h 05m
1 stop
BCN7:35 amBarcelona-El Prat
May 12
BCN10:45 amBarcelona-El Prat
16h 53m
1 stop
ONT6:38 pmOntario
$1,093

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 April 6, 2026.
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

Cheapest round-trip

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/1

11:58 am-11:15 pm

2 stops26h 17m

Barcelona-El Prat

Mon 10/5

12:10 pm-8:13 pm

2 stops41h 03m

$907

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 9/5

11:24 pm-11:15 pm

2 stops38h 51m

Barcelona-El Prat

Tue 9/15

7:05 pm-8:13 pm

2 stops58h 08m

$921

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 9/2

7:57 pm-5:40 pm

2 stops36h 43m

Barcelona-El Prat

Sat 9/12

7:40 am-11:16 am

2 stops36h 36m

$967

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 9/21

9:10 pm-11:15 pm

2 stops41h 05m

Barcelona-El Prat

Tue 9/29

12:10 pm-8:13 pm

2 stops41h 03m

$1,004

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 9/2

6:00 am-11:15 pm

2 stops32h 15m

Barcelona-El Prat

Sat 9/12

7:40 am-11:16 am

2 stops36h 36m

$1,007

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 9/27

6:00 am-2:20 pm

1 stop23h 20m

Barcelona-El Prat

Tue 10/6

12:15 pm-10:26 pm

2 stops43h 11m

$1,045

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/29

6:00 am-11:15 pm

2 stops32h 15m

Barcelona-El Prat

Sun 10/11

7:40 am-2:47 pm

2 stops40h 07m

$1,056

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/29

7:20 am-10:10 am

1 stop17h 50m

Barcelona-El Prat

Tue 10/13

1:30 pm-9:08 pm

1 stop16h 38m

$1,060
Quickest round-trip

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 9/21

1:44 pm-2:20 pm

1 stop15h 36m

Barcelona-El Prat

Tue 9/29

4:10 pm-11:06 pm

1 stop15h 56m

$1,065

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Thu 8/27

6:00 am-5:40 pm

2 stops26h 40m

Barcelona-El Prat

Sat 12/19

6:30 pm-11:09 am

2 stops49h 39m

$1,067

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 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 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 $673. 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 $830. 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 $788 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 $966 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 4% 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

13h 43m

Direct flights

None
The fastest flight from Ontario to Barcelona-El Prat Airport takes 13h 43m
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

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

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

    Barcelona-El Prat is 5972.8 mi away from Ontario. 13h 43m 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
IberiaPriceFrom $605Free CancellationRating
7.0
3,163 reviews
Search Iberia flights
United AirlinesPriceFrom $682Free CancellationRating
7.4
9,546 reviews
Search United Airlines flights
British AirwaysPriceFrom $747Free CancellationRating
6.7
7,855 reviews
Search British Airways 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
Castelldefels
Tarragona
El Prat de Llobregat
L'Hospitalet de Llobregat
Calella
Cambrils
Santa Susanna
Cadaques
Badalona
Pals
Pineda de Mar
Roses
Empuriabrava
Palafrugell
Calella de Palafrugell
Malgrat de Mar

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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