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Cheap flights from Ontario to Barcelona from $383

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 8/11. 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.
Turkish Airlines Logo
11:25 pm - 5:35 pm
ONT
-
BCN
33h 10m
2 stops
Turkish Airlines Logo
12:10 pm - 8:45 pm
BCN
-
ONT
41h 35m
2 stops
$829Turkish Airlines
Sat, May 16 - Mon, May 25
Turkish Airlines Logo
10:56 pm - 5:40 pm
ONT
-
BCN
33h 44m
2 stops
Turkish Airlines Logo
12:10 pm - 9:29 pm
BCN
-
ONT
42h 19m
2 stops
$847Turkish Airlines
Mon, Sep 14 - Sun, Sep 20
Turkish Airlines Logo
10:56 pm - 1:30 pm
ONT
-
BCN
29h 34m
2 stops
Turkish Airlines Logo
12:10 pm - 9:29 pm
BCN
-
ONT
42h 19m
2 stops
$854Turkish Airlines
Thu, Sep 17 - Thu, Oct 1
Turkish Airlines Logo
11:25 pm - 11:15 pm
ONT
-
BCN
38h 50m
2 stops
Turkish Airlines Logo
12:10 pm - 8:45 pm
BCN
-
ONT
65h 35m
2 stops
$887Turkish Airlines
Sat, May 16 - Tue, May 26
Turkish Airlines Logo
11:59 pm - 11:15 pm
ONT
-
BCN
62h 16m
2 stops
Turkish Airlines Logo
12:10 pm - 9:29 pm
BCN
-
ONT
42h 19m
2 stops
$902Turkish Airlines
Sat, Sep 5 - Sat, Sep 19
Turkish Airlines Logo
10:56 pm - 10:45 am
ONT
-
BCN
26h 49m
2 stops
Turkish Airlines Logo
12:10 pm - 9:29 pm
BCN
-
ONT
42h 19m
2 stops
$909Turkish Airlines
Fri, Sep 11 - Sat, Sep 19
Multiple Airlines Logo
11:59 pm - 5:40 pm
ONT
-
BCN
32h 41m
2 stops
Multiple Airlines Logo
7:40 am - 11:11 pm
BCN
-
ONT
24h 31m
2 stops
$942Multiple Airlines
Mon, Jul 27 - Thu, Aug 6
Turkish Airlines Logo
10:56 pm - 11:15 pm
ONT
-
BCN
39h 19m
2 stops
Turkish Airlines Logo
7:40 am - 9:29 pm
BCN
-
ONT
46h 49m
2 stops
$951Turkish Airlines
Tue, Sep 15 - Tue, Sep 29
Multiple Airlines Logo
6:58 pm - 5:40 pm
ONT
-
BCN
37h 42m
2 stops
Multiple Airlines Logo
12:10 pm - 10:39 pm
BCN
-
ONT
43h 29m
2 stops
$967Multiple Airlines
Wed, Sep 2 - Fri, Sep 11
Multiple Airlines Logo
6:00 am - 11:15 pm
ONT
-
BCN
32h 15m
2 stops
Multiple Airlines Logo
7:40 am - 9:45 am
BCN
-
ONT
35h 05m
2 stops
$987Multiple Airlines
Fri, Apr 17 - Fri, Apr 24

KLM flights from Ontario to Barcelona-El Prat Airport

Our best KLM deals on Ontario to Barcelona-El Prat Airport flight tickets
KLM
Apr 21
ONT12:49 pmOntario
15h 01m
1 stop
BCN12:50 pmBarcelona-El Prat
Apr 28
BCN11:00 amBarcelona-El Prat
16h 33m
1 stop
ONT6:33 pmOntario
$1,012
KLM
Apr 5
ONT12:57 pmOntario
14h 53m
1 stop
BCN12:50 pmBarcelona-El Prat
Apr 28
BCN11:00 amBarcelona-El Prat
16h 33m
1 stop
ONT6:33 pmOntario
$1,413
KLM
Mar 31
ONT12:57 pmOntario
14h 53m
1 stop
BCN12:50 pmBarcelona-El Prat
Jul 1
BCN11:00 amBarcelona-El Prat
16h 15m
1 stop
ONT6:15 pmOntario
$1,533

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
May 16
ONT11:25 pmOntario
33h 10m
2 stops
BCN5:35 pmBarcelona-El Prat
May 25
BCN12:10 pmBarcelona-El Prat
41h 35m
2 stops
ONT8:45 pmOntario
$829
Turkish Airlines
May 16
ONT11:25 pmOntario
38h 50m
2 stops
BCN11:15 pmBarcelona-El Prat
May 24
BCN2:35 pmBarcelona-El Prat
63h 10m
2 stops
ONT8:45 pmOntario
$831
Turkish Airlines
Sep 14
ONT10:56 pmOntario
33h 44m
2 stops
BCN5:40 pmBarcelona-El Prat
Sep 20
BCN12:10 pmBarcelona-El Prat
42h 19m
2 stops
ONT9:29 pmOntario
$847

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 March 22, 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

Sat 5/16

11:25 pm-5:35 pm

2 stops33h 10m

Barcelona-El Prat

Mon 5/25

12:10 pm-8:45 pm

2 stops41h 35m

$829

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 9/14

10:56 pm-5:40 pm

2 stops33h 44m

Barcelona-El Prat

Sun 9/20

12:10 pm-9:29 pm

2 stops42h 19m

$847

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Thu 9/17

10:56 pm-1:30 pm

2 stops29h 34m

Barcelona-El Prat

Thu 10/1

12:10 pm-9:29 pm

2 stops42h 19m

$854

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 5/16

11:25 pm-11:15 pm

2 stops38h 50m

Barcelona-El Prat

Tue 5/26

12:10 pm-8:45 pm

2 stops65h 35m

$887

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 9/5

11:59 pm-11:15 pm

2 stops62h 16m

Barcelona-El Prat

Sat 9/19

12:10 pm-9:29 pm

2 stops42h 19m

$902

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Fri 9/11

10:56 pm-10:45 am

2 stops26h 49m

Barcelona-El Prat

Sat 9/19

12:10 pm-9:29 pm

2 stops42h 19m

$909
Quickest round-trip

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 7/27

11:59 pm-5:40 pm

2 stops32h 41m

Barcelona-El Prat

Thu 8/6

7:40 am-11:11 pm

2 stops24h 31m

$942

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 9/15

10:56 pm-11:15 pm

2 stops39h 19m

Barcelona-El Prat

Tue 9/29

7:40 am-9:29 pm

2 stops46h 49m

$951

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 9/2

6:58 pm-5:40 pm

2 stops37h 42m

Barcelona-El Prat

Fri 9/11

12:10 pm-10:39 pm

2 stops43h 29m

$967

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Fri 4/17

6:00 am-11:15 pm

2 stops32h 15m

Barcelona-El Prat

Fri 4/24

7:40 am-9:45 am

2 stops35h 05m

$987

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 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 $680. 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 $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 $786 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 $974 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 15% 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

15h 01m

Direct flights

None
The fastest flight from Ontario to Barcelona-El Prat Airport takes 15h 01m
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. 15h 01m 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
3,147 reviews
Search Iberia flights
United AirlinesPriceFrom $682Free CancellationRating
7.4
9,460 reviews
Search United Airlines flights
British AirwaysPriceFrom $747Free CancellationRating
6.7
7,813 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
Santa Susanna
Cadaques
Cambrils
Badalona
Pals
Pineda de Mar
Empuriabrava
Roses
Calella de Palafrugell
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.

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

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