HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona-El Prat

$318+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BCN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Barcelona-El Prat with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$619
(KLM)

One-way from

$318
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$729
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
High demand for flights, 23% potential price rise
Search Deals
Best time to find cheap flights, 4% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find 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 December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/315:05 amONT - BCN
2 stops19h 45mUnited Airlines
Fri 6/134:00 pmBCN - ONT
1 stop15h 05mUnited Airlines
Deal found 12/17$1,084
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2512:45 pmONT - BCN
2 stops24h 40mBritish Airways
Tue 12/316:40 amBCN - ONT
2 stops40h 03mBritish Airways
Deal found 12/17$1,295
This KLM deal was found by Cheapflights users on 12/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2210:29 pmONT - BCN
1 stop25h 11mKLM
Sat 1/2510:15 amBCN - ONT
1 stop21h 37mKLM
Deal found 12/17$1,330
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:30 amONT - BCN
2 stops18h 10mDelta
Tue 12/3110:55 amBCN - ONT
1 stop32h 51mDelta
Deal found 12/17$1,394
This Lufthansa deal was found by Cheapflights users on 12/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:05 amONT - BCN
3 stops24h 00mMultiple Airlines
Fri 6/137:45 amBCN - ONT
2 stops21h 32mMultiple Airlines
Deal found 12/17$1,640
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:50 pmONT - BCN
2 stops30h 00mAir Canada
Sat 1/412:15 pmBCN - ONT
2 stops30h 43mAir Canada
Deal found 12/17$3,713
This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2610:30 pmONT - BCN
2 stops24h 10mAvianca
Fri 1/312:50 pmBCN - ONT
2 stops41h 10mAvianca
Deal found 12/16$4,528

Find flights from Ontario to Barcelona-El Prat within your budget

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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 2/11

7:05 am-8:00 am

1 stop15h 55m

Barcelona-El Prat

Thu 2/20

10:15 am-10:52 pm

1 stop21h 37m

$619

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 1/15

6:00 am-9:00 am

2 stops18h 00m

Barcelona-El Prat

Wed 2/5

11:00 am-10:45 pm

2 stops20h 45m

$624

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 1/15

5:10 am-9:50 am

2 stops19h 40m

Barcelona-El Prat

Wed 2/5

7:45 am-8:29 pm

3 stops45h 44m

$648

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Thu 1/23

7:05 am-8:00 am

1 stop15h 55m

Barcelona-El Prat

Thu 2/6

10:15 am-10:52 pm

1 stop21h 37m

$666

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 1/12

11:59 pm-1:40 pm

2 stops28h 41m

Barcelona-El Prat

Mon 1/20

7:55 pm-10:45 pm

2 stops35h 50m

$693

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 3/22

12:39 pm-7:40 am

1 stop35h 01m

Barcelona-El Prat

Tue 4/1

11:35 am-10:58 pm

1 stop20h 23m

$812

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 2/2

10:56 am-5:15 pm

2 stops21h 19m

Barcelona-El Prat

Mon 2/17

6:55 pm-10:16 pm

2 stops36h 21m

$921

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Thu 5/29

1:00 pm-7:50 am

3 stops33h 50m

Barcelona-El Prat

Wed 6/4

12:15 pm-12:33 pm

3 stops33h 18m

$1,243

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Mon 4/28

11:30 pm-9:00 am

2 stops24h 30m

Barcelona-El Prat

Mon 6/2

2:00 pm-10:00 pm

2 stops41h 00m

$1,315

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sat 2/15

12:59 am-1:10 pm

2 stops27h 11m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 19 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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.

Travel insights for flights from Ontario to Barcelona-El Prat

Get recent, data-driven insights about flights from Ontario to Barcelona-El Prat including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Ontario to Barcelona-El Prat Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Barcelona-El Prat. Price data was last updated on December 13, 2024.

To ensure you get the cheapest price possible for a flight from Ontario to Barcelona-El Prat Airport, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Barcelona-El Prat Airport (average of $523). Flying from Ontario to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,098). 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.

What is the cheapest time of day to fly from ONT to BCN?

Find hourly flight availability from Ontario to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

It’s typically best to fly out from Ontario to Barcelona-El Prat Airport in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Ontario to Barcelona-El Prat Airport?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Barcelona-El Prat. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Barcelona-El Prat Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona-El Prat Airport ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona-El Prat Airport when rainfall is around 0.8 in.

Temperature in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona-El Prat Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 December 18, 2024.
To help decide which airline to fly from Ontario to Barcelona, see what other customers have to say about KLM, Delta and Air Canada. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,504 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,059 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,604 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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. 6 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.

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

    Currently priced at $619, KLM will fly you from Ontario to Barcelona-El Prat Airport and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $624 and $648, respectively. KLM is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Barcelona-El Prat Airport one-way?

    $457 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on British Airways and KLM, with prices starting from $471 and $486, respectively.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Barcelona-El Prat Airport (average of $523). Flying from Ontario to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,098). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Barcelona-El Prat flights
Los Angeles to Barcelona-El Prat flights
San Diego to Barcelona-El Prat flights
San Jose to Barcelona-El Prat flights
Santa Ana to Barcelona-El Prat flights
Las Vegas to Barcelona-El Prat flights
Oakland to Barcelona-El Prat flights
Sacramento to Barcelona-El Prat flights
Burbank to Barcelona-El Prat flights
Fresno to Barcelona-El Prat flights
Long Beach to Barcelona-El Prat flights
Medford to Barcelona-El Prat flights
San Luis Obispo to Barcelona-El Prat flights
Reno to Barcelona-El Prat flights
Santa Barbara to Barcelona-El Prat flights
Palm Springs to Barcelona-El Prat flights
Los Angeles to Reus flights
Monterey to Barcelona-El Prat flights
San Francisco to Costa Brava flights
San Francisco to Reus flights
Los Angeles to Costa Brava flights
Las Vegas to Costa Brava flights

Top 6 airlines flying from Ontario to Barcelona-El Prat

Discover the top 6 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$546Average$974FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$563Average$1,059FlexibilityNo cancel feeOn-time70%
DeltaCheapest$566Average$823FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$574Average$943FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$695Average$1,032FlexibilityNo cancel feeOn-time67%
IberiaCheapest$716Average$1,086FlexibilityNo cancel feeOn-time77%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.