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Barcelona-El Prat

$314+ Cheap flights from Ontario (ONT) to Barcelona-El Prat (BCN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BCN
apr 11 — apr 181
lör 4/11
lör 4/18
1 adult, Economy
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Cheap flight deals from Ontario to Barcelona-El Prat

Cheapest flights from Ontario to Barcelona-El Prat
Explore the most affordable flight options available from Ontario to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mars 12, 2026.

This FlightHub deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 5/1511:25 pm
ONT
-
BCN
2 stops50h 20m
Turkish Airlines
ons 6/37:40 am
BCN
-
ONT
2 stops46h 05m
Turkish Airlines
Deal found 3/9$833
This KAYAK deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 5/1511:25 pm
ONT
-
BCN
2 stops53h 05m
Turkish Airlines
mån 5/252:35 pm
BCN
-
ONT
2 stops39h 10m
Turkish Airlines
Deal found 3/10$875
This KAYAK deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 5/1511:25 pm
ONT
-
BCN
2 stops53h 05m
Turkish Airlines
mån 6/112:10 pm
BCN
-
ONT
2 stops65h 35m
Turkish Airlines
Deal found 3/9$883
This Turkish Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 9/1110:56 pm
ONT
-
BCN
2 stops53h 34m
Multiple Airlines
sön 9/207:40 am
BCN
-
ONT
2 stops40h 07m
Multiple Airlines
Deal found 3/10$903
This oojo deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 4/1411:59 pm
ONT
-
BCN
1 stop22h 36m
British Airways
tis 4/2110:45 am
BCN
-
ONT
1 stop19h 09m
British Airways
Deal found 3/9$910
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 10/41:33 pm
ONT
-
BCN
1 stop15h 47m
United Airlines
ons 10/144:10 pm
BCN
-
ONT
1 stop15h 56m
United Airlines
Deal found 3/9$915
This oojo deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 4/72:08 pm
ONT
-
BCN
1 stop32h 27m
British Airways
tis 4/1410:45 am
BCN
-
ONT
1 stop20h 51m
British Airways
Deal found 3/8$918
This Virgin Atlantic deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 4/1512:49 pm
ONT
-
BCN
1 stop15h 01m
Virgin Atlantic
ons 4/2911:00 am
BCN
-
ONT
2 stops21h 44m
Virgin Atlantic
Deal found 3/10$920
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 9/18:00 am
ONT
-
BCN
1 stop21h 20m
United Airlines
tis 9/1512:15 pm
BCN
-
ONT
2 stops33h 23m
United Airlines
Deal found 3/7$923
This Condor deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 9/159:40 am
ONT
-
BCN
2 stops27h 30m
Multiple Airlines
ons 9/308:00 am
BCN
-
ONT
2 stops22h 29m
Multiple Airlines
Deal found 3/10$925
This Air Canada deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 4/196:00 am
ONT
-
BCN
2 stops18h 20m
Multiple Airlines
tors 4/3012:15 pm
BCN
-
ONT
2 stops19h 20m
Multiple Airlines
Deal found 3/7$927
This oojo deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 4/87:30 am
ONT
-
BCN
1 stop15h 05m
British Airways
ons 4/2210:45 am
BCN
-
ONT
1 stop16h 52m
British Airways
Deal found 3/7$933

Find flight deals from Ontario to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Barcelona-El Prat (BCN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mars 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$833
(FlightHub)

One-way from

$314
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$965
Provider with most accurate pricing for Ontario-Barcelona-El Prat flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Barcelona-El Prat flights.
Search Deals
From Ontario to Barcelona-El Prat
Search Deals
One-way flight from Ontario to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($224 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Barcelona-El Prat 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, Cheapflights users made 2,558,603 searches. Data last updated mars 12, 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

sön 9/6

11:59 pm-5:40 pm

2 stops56h 41m

Barcelona-El Prat

tors 9/17

2:35 pm-9:29 pm

2 stops63h 54m

$947

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

sön 5/10

1:30 pm-2:20 pm

1 stop15h 50m

Barcelona-El Prat

tis 5/26

4:10 pm-10:37 pm

1 stop15h 27m

$993
Quickest round-trip

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

tis 5/12

11:52 am-11:10 am

1 stop14h 18m

Barcelona-El Prat

fre 5/22

11:00 am-6:36 pm

1 stop16h 36m

$1,020

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

mån 3/30

12:57 pm-12:50 pm

1 stop14h 53m

Barcelona-El Prat

tors 4/9

11:00 am-9:00 pm

1 stop19h 00m

$1,040

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

ons 5/13

1:30 pm-2:20 pm

1 stop15h 50m

Barcelona-El Prat

fre 6/5

4:10 pm-10:37 pm

1 stop15h 27m

$1,043

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

sön 5/10

1:30 pm-2:20 pm

1 stop15h 50m

Barcelona-El Prat

lör 5/23

4:10 pm-10:50 pm

1 stop15h 40m

$1,128

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

lör 5/9

10:00 pm-8:35 am

2 stops49h 35m

Barcelona-El Prat

fre 6/5

6:20 am-4:17 pm

2 stops18h 57m

$1,139

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

tis 5/19

6:45 am-11:10 am

1 stop19h 25m

Barcelona-El Prat

ons 6/17

1:20 pm-10:40 pm

1 stop18h 20m

$1,163

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

mån 8/3

12:00 pm-12:50 pm

1 stop15h 50m

Barcelona-El Prat

fre 8/14

1:20 pm-10:40 pm

1 stop18h 20m

$1,185

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

ons 5/20

6:00 am-3:35 pm

2 stops24h 35m

Barcelona-El Prat

tis 5/26

11:15 am-10:46 pm

2 stops20h 31m

$1,188

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Ontario to Barcelona-El Prat

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Barcelona-El Prat in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Barcelona-El Prat Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Barcelona-El Prat Airport

What is the cheapest month to book a flight from Ontario to Barcelona-El Prat Airport?

Currently, October is the cheapest month in which you can book a flight from Ontario to Barcelona-El Prat Airport (average of $367). Flying from Ontario to Barcelona-El Prat Airport in June is currently the most expensive (average of $607). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona-El Prat. Reviews last updated mars 12, 2026.
Read reviews from past customers who have flown United Airlines,Iberia, andBritish Airways from Ontario to Barcelona-El Prat Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,420 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,420 reviews
United Airlines
7.4
Good
9,420 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
3,133 reviews
United Airlines
7.4
Good
9,420 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,784 reviews
United Airlines
7.4
Good
9,420 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Ontario to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Barcelona-El Prat?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Barcelona-El Prat. 3 airlines have flights from Ontario to Barcelona-El Prat on a regular basis. Booking flights from Ontario to Barcelona-El Prat should not be difficult; the airport handles an average of 0 outbound flights to Barcelona-El Prat per day.

  • How long is the flight from Ontario to Barcelona-El Prat Airport?

    Airlines like Turkish Airlines, United Airlines, and KLM fly from Ontario to Barcelona-El Prat Airport in about 14h 18m. The time it takes to get you to your destination can typically vary by up to 42h 23m. Ontario and Barcelona-El Prat Airport are separated by a distance of 5971 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Ontario to Barcelona-El Prat Airport round-trip?

    Currently priced at $605, Iberia will fly you from Ontario to Barcelona-El Prat Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and British Airways - these airlines can fly you to your destination from $682 and $747, respectively. Iberia is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Ontario to Barcelona-El Prat that include hotel bookings?

    Yes. In addition to deals on Ontario to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Barcelona-El Prat?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Barcelona-El Prat.

  • Can I find deals for business class flights from Ontario to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Ontario to Barcelona-El Prat by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Barcelona-El Prat Airport?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Barcelona-El Prat Airport (average of $367). Flying from Ontario to Barcelona-El Prat Airport in June is currently the most expensive (average of $607). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Roses
Calella
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

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Top 3 airlines flying from Ontario to Barcelona-El Prat

Discover the top 3 airlines that operate flights from Ontario to Barcelona-El Prat. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mars 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$605Average$993FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$682Average$1,102FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$747Average$969FlexibilityNo cancel feeOn-time70%

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