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$366+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SAN
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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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 January 26, 2026.

This Flysmarter deal was found by Cheapflights users on 1/24. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:15 pm
BCN
-
SAN
2 stops32h 38m
Air Canada
Mon 5/44:45 pm
SAN
-
BCN
2 stops30h 15m
Air Canada
Deal found 1/24$624
This Flighttix deal was found by Cheapflights users on 1/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/95:50 am
BCN
-
SAN
2 stops23h 04m
Lufthansa
Mon 2/232:10 pm
SAN
-
BCN
2 stops18h 25m
Lufthansa
Deal found 1/24$635
This United Airlines deal was found by Cheapflights users on 1/24. 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 4/106:40 am
BCN
-
SAN
2 stops23h 46m
United Airlines
Sat 4/186:20 am
SAN
-
BCN
2 stops21h 55m
United Airlines
Deal found 1/24$637
This Flighttix deal was found by Cheapflights users on 1/26. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/179:55 am
BCN
-
SAN
2 stops21h 05m
Lufthansa
Wed 3/116:35 pm
SAN
-
BCN
1 stop15h 00m
Lufthansa
Deal found 1/26$639
This United Airlines deal was found by Cheapflights users on 1/24. 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 2/186:50 am
BCN
-
SAN
2 stops41h 51m
United Airlines
Sun 2/228:30 am
SAN
-
BCN
1 stop14h 50m
United Airlines
Deal found 1/24$640
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Thu 3/126:50 am
BCN
-
SAN
2 stops19h 43m
United Airlines
Thu 3/195:50 pm
SAN
-
BCN
2 stops30h 30m
United Airlines
Deal found 1/25$641
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Sat 4/258:00 am
BCN
-
SAN
2 stops21h 46m
United Airlines
Sun 5/35:15 pm
SAN
-
BCN
1 stop15h 40m
United Airlines
Deal found 1/26$642
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/176:50 am
BCN
-
SAN
2 stops20h 58m
United Airlines
Wed 3/1111:03 am
SAN
-
BCN
2 stops22h 32m
United Airlines
Deal found 1/26$644
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Mon 2/96:35 am
BCN
-
SAN
2 stops36h 52m
United Airlines
Mon 2/231:40 pm
SAN
-
BCN
1 stop34h 20m
United Airlines
Deal found 1/24$645

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$630
(Flysmarter)

One-way from

$366
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$1,189
Provider with most accurate pricing for Barcelona-El Prat-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Barcelona-El Prat-San Diego flights.
Search Deals
From Barcelona-El Prat to San Diego
Search Deals
One-way flight from Barcelona-El Prat to San Diego
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 26, 2026.
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

Wed 2/18

6:50 am-11:51 am

2 stops38h 01m

San Diego

Sun 2/22

8:30 am-8:20 am

1 stop14h 50m

$637

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 3/12

6:50 am-6:33 pm

2 stops19h 43m

San Diego

Thu 3/19

5:50 pm-8:20 am

2 stops30h 30m

$641

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sun 4/26

6:40 am-8:12 pm

2 stops22h 32m

San Diego

Sun 5/3

5:15 pm-5:55 pm

1 stop15h 40m

$642

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 4/25

8:00 am-8:46 pm

2 stops21h 46m

San Diego

Sun 5/3

11:06 am-2:20 pm

1 stop18h 14m

$643

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 2/9

6:35 am-10:27 am

2 stops36h 52m

San Diego

Mon 2/23

7:00 am-9:00 am

2 stops17h 00m

$645

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 4/23

7:55 am-3:25 pm

1 stop16h 30m

San Diego

Mon 5/4

9:09 am-2:20 pm

1 stop20h 11m

$646

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Wed 2/4

6:35 pm-1:57 pm

3 stops52h 22m

$366

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Tue 2/3

6:10 pm-2:01 pm

3 stops52h 51m

$398

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 3/7

10:00 am-10:47 am

3 stops57h 47m

$423

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 2/2

6:10 pm-11:31 pm

3 stops38h 21m

$430

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 12 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Barcelona-El Prat Airport-San Diego flight deals on Cheapflights vs. FlightHub >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 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 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 January 23, 2026.

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 $592). Flying from Barcelona-El Prat Airport to San Diego in December is currently the most expensive (average of $901). 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.

How much does it cost to fly round-trip from Barcelona-El Prat Airport to San Diego?

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 38h 01m. United Airlines provides one of the quickest options available for as low as $637. The distance from Barcelona-El Prat Airport to San Diego is about 6025 mi.

  • 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. British Airways flights start at $537 while deals on Lufthansa start at $628 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 $592). Flying from Barcelona-El Prat Airport to San Diego in December is currently the most expensive (average of $901). 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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