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$376+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$651
(Finnair)

One-way from

$376
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$808

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. 16% potential increase in price ($169 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/106:45 amBCN - SAN
2 stops38h 11mMultiple Airlines
Sat 11/159:59 pmSAN - BCN
1 stop30h 21mMultiple Airlines
Deal found 9/11$675
This lol.travel deal was found by Cheapflights users on 9/9. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/612:20 pmBCN - SAN
1 stop20h 20mIberia
Mon 10/206:20 amSAN - BCN
1 stop17h 45mIberia
Deal found 9/9$679
This lol.travel deal was found by Cheapflights users on 9/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/92:00 pmBCN - SAN
1 stop16h 21mIberia
Wed 10/2210:46 amSAN - BCN
1 stop14h 24mIberia
Deal found 9/10$685
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:10 pmBCN - SAN
1 stop35h 00mMultiple Airlines
Tue 1/65:27 pmSAN - BCN
2 stops34h 53mMultiple Airlines
Deal found 9/9$689
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2410:40 pmBCN - SAN
2 stops46h 05mMultiple Airlines
Fri 10/3112:35 pmSAN - BCN
1 stop15h 45mMultiple Airlines
Deal found 9/9$691
This Finnair deal was found by Cheapflights users on 9/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:00 amBCN - SAN
2 stops21h 53mMultiple Airlines
Tue 12/96:00 pmSAN - BCN
1 stop16h 45mMultiple Airlines
Deal found 9/10$692
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/92:00 pmBCN - SAN
1 stop16h 21mAmerican Airlines
Wed 10/2210:46 amSAN - BCN
1 stop14h 24mAmerican Airlines
Deal found 9/11$702
This American Airlines deal was found by Cheapflights users on 9/11. 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 11/1012:50 pmBCN - SAN
1 stop17h 54mAmerican Airlines
Sat 11/1510:49 pmSAN - BCN
1 stop25h 11mAmerican Airlines
Deal found 9/11$719
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:20 pmBCN - SAN
2 stops55h 26mMultiple Airlines
Mon 10/208:48 amSAN - BCN
1 stop18h 27mMultiple Airlines
Deal found 9/9$734

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 September 11, 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

Sun 2/1

9:20 pm-4:10 pm

1 stop27h 50m

San Diego

Sun 2/8

6:00 pm-5:00 pm

1 stop14h 00m

$653

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 11/10

6:45 am-11:56 am

2 stops38h 11m

San Diego

Sat 11/15

9:59 pm-1:20 pm

1 stop30h 21m

$675

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/26

10:40 am-8:08 pm

2 stops18h 28m

San Diego

Sun 2/1

10:56 am-8:50 am

1 stop12h 54m

$676

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 12/13

6:10 pm-8:10 pm

1 stop35h 00m

San Diego

Tue 1/6

5:27 pm-1:20 pm

2 stops34h 53m

$689

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 12/4

11:00 am-11:00 pm

1 stop21h 00m

San Diego

Tue 12/9

6:00 pm-6:25 pm

1 stop15h 25m

$692

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Fri 3/6

12:30 pm-9:43 pm

1 stop18h 13m

San Diego

Tue 3/10

11:25 am-7:50 am

1 stop36h 25m

$696

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 10/9

2:00 pm-9:21 pm

1 stop16h 21m

San Diego

Wed 10/22

11:35 am-10:10 am

1 stop13h 35m

$702

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 10/9

2:00 pm-9:21 pm

1 stop16h 21m

San Diego

Wed 10/22

10:46 am-10:10 am

1 stop14h 24m

$704

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sun 11/16

6:45 am-11:19 pm

2 stops25h 34m

$410

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 11/15

6:45 am-6:33 pm

2 stops20h 48m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 16 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 August 29, 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 September 11, 2025.
Read reviews from past customers who have flown American Airlines and British Airways 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.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
British Airways
6.7
Okay
7,361 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

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.

  • 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 18h 28m. American Airlines provides one of the quickest options available for as low as $676. The distance from Barcelona-El Prat Airport to San Diego is about 6025 mi.

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

    British Airways, at $732, was found to be the cheapest airline from Barcelona-El Prat Airport to San Diego. An alternate airline flying to your destination would be American Airlines. These flights start at 13% lower than the current average price 3 months from now.

  • 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 $633.

  • 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$732Average$903FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$778Average$912FlexibilityNo cancel feeOn-time71%

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