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$326+ Cheap flights from Barcelona-El Prat (BCN) to San Diego (SAN)

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SAN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Barcelona-El Prat to San Diego are usually found in March or January, booked 12 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Barcelona-El Prat to San Diego

Cheapest flights from Barcelona-El Prat to San Diego
Explore the most affordable flight options available from Barcelona-El Prat to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

This Delta deal was found by Cheapflights users on 12/3. 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.
Sun 12/146:00 amBCN - SAN
2 stops21h 18mDelta
Sun 1/1110:15 pmSAN - BCN
1 stop24h 45mDelta
Deal found 12/3$870
This KLM deal was found by Cheapflights users on 12/3. 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 12/1410:15 amBCN - SAN
1 stop22h 43mKLM
Sun 1/1110:15 pmSAN - BCN
1 stop24h 45mKLM
Deal found 12/3$872
This Trip.com deal was found by Cheapflights users on 12/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:15 amBCN - SAN
1 stop34h 47mVirgin Atlantic
Wed 12/2411:25 amSAN - BCN
1 stop34h 50mVirgin Atlantic
Deal found 12/3$925
This Cheapflightsfares deal was found by Cheapflights users on 12/3. 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.
Sat 12/279:10 amBCN - SAN
2 stops19h 47mLufthansa
Wed 1/79:55 amSAN - BCN
2 stops19h 50mLufthansa
Deal found 12/3$957
This Cheapflightsfares deal was found by Cheapflights users on 12/4. 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.
Fri 12/197:40 amBCN - SAN
2 stops20h 03mLufthansa
Fri 1/99:55 amSAN - BCN
2 stops18h 15mLufthansa
Deal found 12/4$987
This United Airlines deal was found by Cheapflights users on 12/4. 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.
Fri 12/1910:30 amBCN - SAN
1 stop19h 22mUnited Airlines
Fri 1/97:00 amSAN - BCN
1 stop17h 00mUnited Airlines
Deal found 12/4$1,014

Find flight deals from Barcelona-El Prat to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to San Diego (SAN). 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 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$607
(Kiwi.com)

One-way from

$326
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,266
Provider with most accurate pricing for Barcelona-El Prat-San Diego flight deals.
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Provider most trusted by Cheapflights users for Barcelona-El Prat-San Diego flights.
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From Barcelona-El Prat to San Diego
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One-way flight from Barcelona-El Prat to San Diego
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat to San Diego 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 4, 2025.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to San Diego that are best for you.

Fly from

Barcelona-El Prat

Fly to

San Diego

Route

Depart

Return

Price

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 1/15

6:00 am-10:31 pm

2 stops25h 31m

San Diego

Fri 1/30

10:37 am-2:00 pm

2 stops18h 23m

$756

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sun 1/18

6:00 am-4:40 pm

2 stops19h 40m

San Diego

Sun 1/25

6:15 am-11:10 am

2 stops19h 55m

$759

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/12

6:00 am-8:50 pm

2 stops23h 50m

San Diego

Tue 1/27

7:05 am-2:00 pm

2 stops21h 55m

$759

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 3/14

1:55 pm-11:50 am

2 stops29h 55m

San Diego

Tue 4/7

6:25 am-8:20 am

2 stops16h 55m

$760

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/26

10:40 am-10:50 pm

1 stop21h 10m

San Diego

Wed 2/25

6:00 pm-7:45 pm

1 stop16h 45m

$762

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/19

11:00 am-11:09 pm

1 stop21h 09m

San Diego

Mon 2/2

6:00 pm-7:45 pm

1 stop16h 45m

$764

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/12

10:15 am-12:05 am

1 stop22h 50m

San Diego

Tue 1/27

8:05 am-8:40 am

1 stop15h 35m

$764

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/12

10:40 am-7:12 pm

1 stop17h 32m

San Diego

Tue 1/27

6:00 pm-5:20 pm

1 stop14h 20m

$764

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/12

11:00 am-11:42 pm

2 stops21h 42m

San Diego

Tue 1/27

7:00 am-9:00 am

1 stop17h 00m

$776

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 5/16

6:50 am-6:37 pm

2 stops20h 47m

San Diego

Thu 5/21

8:50 pm-8:00 am

2 stops26h 10m

$787

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 18 results
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Compare providers for flights from Barcelona-El Prat to San Diego

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 Barcelona-El Prat to San Diego in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 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 Barcelona-El Prat Airport-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Barcelona-El Prat Airport-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Barcelona-El Prat Airport-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Barcelona-El Prat Airport-San Diego flights, Cheapflights users trust eDreams the most. eDreams 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 Barcelona-El Prat Airport-San Diego 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 Barcelona-El Prat to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Barcelona-El Prat 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 Barcelona-El Prat Airport to San Diego

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

Use this chart to determine the optimal time to book a round-trip flight from Barcelona-El Prat to San Diego. Price data was last updated on November 28, 2025.

The price you pay for your flight from Barcelona-El Prat Airport to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 12 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 Barcelona-El Prat Airport to San Diego?

Currently, October is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Diego (average of $589). Flying from Barcelona-El Prat Airport to San Diego in December is currently the most expensive (average of $847). 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.

Related info for your journey

Find useful and relevant information for your journey from Barcelona-El Prat to San Diego. 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 into for flights to San Diego from Barcelona-El Prat?

    San Diego (SAN) is the airport you will fly into if you book a flight from Barcelona-El Prat to San Diego. You should not have trouble finding flights to San Diego from Barcelona-El Prat; the airport handles an average of 0 inbound flights from Barcelona-El Prat per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the San Diego airport from Barcelona-El Prat. It is only a 2.6 mi journey from San Diego (SAN) to San Diego’s city center.

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

    A quick flight from Barcelona-El Prat Airport to San Diego can take about 19h 40m. Delta provides one of the quickest options available for as low as $759. The distance from Barcelona-El Prat Airport to San Diego is about 6025 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $521. Lufthansa flights start at $646 while deals on British Airways start at $659 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Barcelona-El Prat to San Diego 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 Barcelona-El Prat Airport to San Diego?

    Currently, October is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Diego (average of $589). Flying from Barcelona-El Prat Airport to San Diego in December is currently the most expensive (average of $847). 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 San Diego?

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El Cajon
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Coronado
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