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$375+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SAN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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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

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 July 29, 2025.

Round-trip from

$671
(Kiwi.com)

One-way from

$375
(Mytrip)

Popular in

July

Cheapest in

March

Average price

$1,124

Good one-way deal

$143 or less
From Barcelona-El Prat to San Diego
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One-way flight from Barcelona-El Prat to San Diego
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Highest demand for flights based on searches. 13% potential increase in price ($133 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a one-way flight from Barcelona-El Prat to San Diego.
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Find 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 July 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:30 pmBCN - SAN
1 stop25h 20mMultiple Airlines
Mon 9/298:24 amSAN - BCN
2 stops28h 26mMultiple Airlines
Deal found 7/29$671
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Thu 9/188:00 pmBCN - SAN
2 stops35h 02mSWISS
Sat 9/204:11 pmSAN - BCN
2 stops41h 59mSWISS
Deal found 7/29$731
This British Airways deal was found by Cheapflights users on 7/29. 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.
Sun 12/148:00 pmBCN - SAN
2 stops32h 03mBritish Airways
Sun 1/113:03 pmSAN - BCN
1 stop32h 47mBritish Airways
Deal found 7/29$777
This lol.travel deal was found by Cheapflights users on 7/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:50 amBCN - SAN
1 stop16h 35mUnited Airlines
Mon 9/158:11 pmSAN - BCN
2 stops26h 39mUnited Airlines
Deal found 7/28$795
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 9/1512:20 pmBCN - SAN
1 stop17h 00mAmerican Airlines
Mon 9/298:18 amSAN - BCN
1 stop16h 52mAmerican Airlines
Deal found 7/29$798
This Air Canada deal was found by Cheapflights users on 7/27. 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.
Sun 12/149:55 amBCN - SAN
2 stops34h 23mAir Canada
Sun 1/116:10 pmSAN - BCN
2 stops30h 25mAir Canada
Deal found 7/27$800
This Finnair deal was found by Cheapflights users on 7/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:20 pmBCN - SAN
1 stop19h 33mFinnair
Mon 9/1510:42 amSAN - BCN
1 stop14h 28mFinnair
Deal found 7/28$804
This Lufthansa deal was found by Cheapflights users on 7/27. 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.
Mon 8/253:40 pmBCN - SAN
1 stop32h 45mLufthansa
Sun 9/75:15 pmSAN - BCN
1 stop19h 25mLufthansa
Deal found 7/27$819
This lastminute.com deal was found by Cheapflights users on 7/29. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:00 amBCN - SAN
2 stops19h 27mVirgin Atlantic
Mon 9/298:00 amSAN - BCN
2 stops18h 55mVirgin Atlantic
Deal found 7/29$821
This Delta deal was found by Cheapflights users on 7/27. 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.
Mon 8/251:20 pmBCN - SAN
1 stop31h 40mDelta
Sun 9/71:57 pmSAN - BCN
2 stops18h 13mDelta
Deal found 7/27$828
This Austrian Airlines deal was found by Cheapflights users on 7/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:00 amBCN - SAN
2 stops41h 20mAustrian Airlines
Mon 9/2911:08 amSAN - BCN
2 stops23h 42mAustrian Airlines
Deal found 7/29$870

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 July 29, 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

Mon 9/15

6:30 pm-10:50 am

1 stop25h 20m

San Diego

Mon 9/29

8:24 am-9:50 pm

2 stops28h 26m

$671

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 9/18

8:00 pm-10:02 pm

2 stops35h 02m

San Diego

Sat 9/20

4:11 pm-7:10 pm

2 stops41h 59m

$731

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sun 12/14

9:20 pm-4:10 pm

1 stop27h 50m

San Diego

Sun 1/11

3:03 pm-8:50 am

1 stop32h 47m

$777

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 9/1

7:50 am-3:25 pm

1 stop16h 35m

San Diego

Mon 9/15

8:00 am-8:20 am

1 stop15h 20m

$795

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 9/15

12:20 pm-8:20 pm

1 stop17h 00m

San Diego

Mon 9/29

8:18 am-10:10 am

1 stop16h 52m

$798

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sun 12/14

9:55 am-11:18 am

2 stops34h 23m

San Diego

Sun 1/11

6:10 pm-9:35 am

2 stops30h 25m

$800

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 9/1

12:20 pm-10:53 pm

1 stop19h 33m

San Diego

Mon 9/15

10:42 am-10:10 am

1 stop14h 28m

$804

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 8/25

3:40 pm-3:25 pm

1 stop32h 45m

San Diego

Sun 9/7

5:15 pm-9:40 pm

1 stop19h 25m

$819

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 9/15

9:00 am-7:27 pm

2 stops19h 27m

San Diego

Mon 9/29

8:00 am-11:55 am

2 stops18h 55m

$821

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 8/25

1:20 pm-12:00 pm

1 stop31h 40m

San Diego

Sun 9/7

1:57 pm-5:10 pm

2 stops18h 13m

$828

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 17 results
1
2

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 July 25, 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, August is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Diego (average of $286). Flying from Barcelona-El Prat Airport to San Diego in March is currently the most expensive (average of $366). 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 San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Delta, Austrian Airlines, and Finnair from Barcelona-El Prat Airport to San Diego. 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.
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
821 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,683 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 2 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.

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

    SWISS, at $731, was found to be the cheapest airline from Barcelona-El Prat Airport to San Diego.Alternate airlines to your destination round-trip include British Airways and United Airlines. These flights start at 12% lower than the current average price 3 months from now.

  • 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $574. WestJet flights start at $612 while deals on Aer Lingus start at $667 one-way.

  • What are the cheapest flights from Barcelona-El Prat Airport to San Diego?

    On average you can expect to pay $235 for a flight from Barcelona-El Prat Airport to San Diego. The cheapest flight overall is $143 while the most popular route, (Barcelona-El Prat - San Diego) is currently priced at $668.

  • 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, August is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Diego (average of $286). Flying from Barcelona-El Prat Airport to San Diego in March is currently the most expensive (average of $366). 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?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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Top 2 airlines flying from Barcelona-El Prat to San Diego

Discover the top 2 airlines that operate flights from Barcelona-El Prat to San Diego. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$732Average$903FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$778Average$912FlexibilityNo cancel feeOn-time71%

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