HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$401+ Cheap flights from Ontario (ONT) to Barcelona

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BCN
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Barcelona 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

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Barcelona (S37). 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 November 20, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$478
(Air Canada)

One-way from

$401
(KLM)
High demand for flights, 32% potential price rise
Search Deals
Best time to find cheap flights, 28% potential price drop
Search Deals
From Ontario to Barcelona
Search Deals
One-way flight from Ontario to Barcelona
Search Deals

Find flight deals from Ontario to Barcelona

Cheapest flights from Ontario to Barcelona
Explore the most affordable flight options available from Ontario to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Air Canada deal was found by Cheapflights users on 11/19. 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.
Tue 12/35:05 amONT - BCN
3 stops19h 45mAir Canada
Tue 12/1012:15 pmBCN - ONT
3 stops33h 25mAir Canada
Deal found 11/19$629
This KLM deal was found by Cheapflights users on 11/19. 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.
Tue 12/310:00 pmONT - BCN
1 stop25h 40mKLM
Tue 12/1010:55 amBCN - ONT
1 stop17h 50mKLM
Deal found 11/19$633
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/46:00 amONT - BCN
2 stops17h 20mUnited Airlines
Tue 12/1011:00 amBCN - ONT
2 stops19h 42mUnited Airlines
Deal found 11/19$644
This Air Canada deal was found by Cheapflights users on 11/19. 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.
Wed 12/46:00 amONT - BCN
2 stops18h 50mMultiple Airlines
Tue 12/1712:15 pmBCN - ONT
3 stops33h 25mMultiple Airlines
Deal found 11/19$645
This British Airways deal was found by Cheapflights users on 11/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/310:43 amONT - BCN
2 stops19h 02mBritish Airways
Tue 12/108:35 pmBCN - ONT
2 stops31h 03mBritish Airways
Deal found 11/19$659
This Delta deal was found by Cheapflights users on 11/18. 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.
Tue 12/310:00 pmONT - BCN
1 stop25h 40mDelta
Tue 12/1710:15 amBCN - ONT
2 stops21h 47mDelta
Deal found 11/18$692
This Iberia deal was found by Cheapflights users on 11/18. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/52:54 pmONT - BCN
2 stops20h 26mIberia
Thu 12/197:00 amBCN - ONT
2 stops25h 57mIberia
Deal found 11/18$1,191
This Air France deal was found by Cheapflights users on 11/19. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1712:11 pmONT - BCN
2 stops16h 49mAir France
Thu 12/2610:55 amBCN - ONT
1 stop17h 46mAir France
Deal found 11/19$1,194
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/206:10 amONT - BCN
2 stops17h 50mAmerican Airlines
Sat 11/239:55 amBCN - ONT
2 stops23h 02mAmerican Airlines
Deal found 11/19$1,385

Find flights from Ontario to Barcelona within your budget

Customize your flight search to find flights from Ontario to Barcelona 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 3/9

5:05 am-8:50 am

2 stops19h 45m

Barcelona-El Prat

Thu 3/20

11:15 am-8:57 pm

2 stops41h 42m

$478

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 3/4

7:00 am-8:40 am

1 stop16h 40m

Barcelona-El Prat

Tue 3/18

9:55 am-10:58 pm

1 stop21h 03m

$493

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 2/4

7:00 am-8:00 am

1 stop16h 00m

Barcelona-El Prat

Thu 2/13

10:15 am-10:52 pm

1 stop21h 37m

$495

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Wed 1/8

5:10 am-9:50 am

2 stops19h 40m

Barcelona-El Prat

Thu 1/16

11:00 am-9:57 pm

2 stops19h 57m

$505

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 1/12

2:44 pm-8:10 pm

2 stops20h 26m

Barcelona-El Prat

Mon 1/20

7:55 pm-6:37 pm

2 stops31h 42m

$549

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Fri 3/21

5:05 am-8:50 am

3 stops19h 45m

Barcelona-El Prat

Mon 3/31

12:15 pm-9:59 am

2 stops30h 44m

$606

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Sun 1/12

2:44 pm-5:15 pm

2 stops17h 31m

Barcelona-El Prat

Sun 1/26

1:30 pm-11:58 pm

2 stops19h 28m

$817

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 1/21

7:00 am-8:00 am

1 stop16h 00m

$401

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 1/21

5:10 am-9:00 am

2 stops18h 50m

$403

OntarioBarcelona

ONT - BCN

ONTBCN

Ontario

Tue 1/14

7:00 am-8:00 am

1 stop16h 00m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 18 results
1
2

Best time to book a flight from Ontario to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

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

How far ahead should I book a flight from Ontario to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Barcelona. Price data was last updated on November 15, 2024.

The price you pay for your flight from Ontario to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Ontario to Barcelona?

Currently, January is the cheapest month in which you can book a flight from Ontario to Barcelona (average of $521). Flying from Ontario to Barcelona in June is currently the most expensive (average of $1,020). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

It’s typically best to fly out from Ontario to Barcelona 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?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Barcelona. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Ontario to Barcelona 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 by month

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

In terms of precipitation, rainfall in Barcelona 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 when rainfall is around 0.8 in.

Temperature in Barcelona by month

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

If weather is an important factor for your trip to Barcelona, 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

Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated November 20, 2024.
Peruse reviews from past customers who have flown with KLM, United Airlines and Air Canada from Ontario to Barcelona to help guide your decision. 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
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
1,523 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

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. 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?

    For a flight from Ontario to Barcelona, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to Barcelona per day. 6 airlines have flights to Barcelona from Ontario on a regular basis.

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

    Currently priced at $478, Air Canada will fly you from Ontario to Barcelona and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and Delta - these airlines can fly you to your destination from $493 and $495, respectively. Air Canada is currently priced 44% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $401 on KLM. Other airlines that offer cheap prices include United Airlines from $403 and Virgin Atlantic from $417 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Barcelona 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?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Barcelona (average of $521). Flying from Ontario to Barcelona in June is currently the most expensive (average of $1,020). 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

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

Top 6 airlines flying from Ontario to Barcelona

Discover the top 6 airlines that operate flights from Ontario to Barcelona. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$546Average$974FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$563Average$1,170FlexibilityNo cancel feeOn-time70%
DeltaCheapest$566Average$843FlexibilityNo 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.
View all available airlines