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Cheap Flights from Barcelona to San Diego

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Compare Barcelona to San Diego flight deals

Find the cheapest month or even day of the year to fly to San Diego

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Flight deals from Barcelona to San Diego

Looking for a cheap last-minute deal or the best return flight from Barcelona to San Diego? Find the lowest prices on one-way and return tickets right here.
San Diego.$1,084 per passenger.Departing Mon, 12 May, returning Mon, 26 May.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Barcelona on Mon, 12 May, arriving in San Diego International.Inbound indirect flight with Finnair, departs from San Diego International on Mon, 26 May, arriving in Barcelona.Price includes taxes and charges.From $1,084, select.
San Diego.$1,107 per passenger.Departing Wed, 14 May, returning Wed, 9 Jul.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Barcelona on Wed, 14 May, arriving in San Diego International.Inbound indirect flight with Iberia, departs from San Diego International on Wed, 9 Jul, arriving in Barcelona.Price includes taxes and charges.From $1,107, select.
San Diego.$1,137 per passenger.Departing Mon, 29 Sep, returning Mon, 13 Oct.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Barcelona on Mon, 29 Sep, arriving in San Diego International.Inbound indirect flight with Iberia, departs from San Diego International on Mon, 13 Oct, arriving in Barcelona.Price includes taxes and charges.From $1,137, select.
San Diego.$1,141 per passenger.Departing Wed, 4 Jun, returning Mon, 7 Jul.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Barcelona on Wed, 4 Jun, arriving in San Diego International.Inbound indirect flight with Finnair, departs from San Diego International on Mon, 7 Jul, arriving in Barcelona.Price includes taxes and charges.From $1,141, select.
San Diego.$1,154 per passenger.Departing Sat, 30 Aug, returning Tue, 9 Sep.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Barcelona on Sat, 30 Aug, arriving in San Diego International.Inbound indirect flight with Finnair, departs from San Diego International on Tue, 9 Sep, arriving in Barcelona.Price includes taxes and charges.From $1,154, select.
San Diego.$1,156 per passenger.Departing Thu, 25 Sep, returning Tue, 30 Sep.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Barcelona on Thu, 25 Sep, arriving in San Diego International.Inbound indirect flight with Iberia, departs from San Diego International on Tue, 30 Sep, arriving in Barcelona.Price includes taxes and charges.From $1,156, select.
San Diego.$1,188 per passenger.Departing Wed, 14 May, returning Wed, 4 Jun.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Barcelona on Wed, 14 May, arriving in San Diego International.Inbound indirect flight with Iberia, departs from San Diego International on Wed, 4 Jun, arriving in Barcelona.Price includes taxes and charges.From $1,188, select.
San Diego.$1,194 per passenger.Departing Wed, 4 Feb, returning Tue, 10 Feb.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Barcelona on Wed, 4 Feb, arriving in San Diego International.Inbound indirect flight with Air France, departs from San Diego International on Tue, 10 Feb, arriving in Barcelona.Price includes taxes and charges.From $1,194, select.

Find the cheapest month to fly from Barcelona to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Barcelona to San Diego flights are currently cheapest in May.
Apr
from $1,515
May
from $1,084
Jun
from $1,484
Jul
from $1,494
Aug
from $1,502
Sep
from $1,156
Oct
from $1,271
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
from $1,194
Mar
from $1,231

Alternative Barcelona to San Diego routes

Looking for the cheapest, fastest or easiest route from Barcelona to San Diego? You could fly into the following airports instead.

Barcelona to San Diego: Flight information

The things to know before you go.
Cheapest flight found$1,084
Cheapest month to flyMay

Finding cheap flights from Barcelona to San Diego: Frequently asked questions

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Barcelona to San Diego is $1,084. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Barcelona to San Diego. But we found flights with one or more stops from $1,084.
As of April 2025, there are no flights flying from Barcelona to San Diego.
The cheapest month to fly from Barcelona to San Diego is usually April 2025.
If you're flying from Barcelona Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from $1,084.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Barcelona Airport to San Diego on Monday, 12 May 2025.
No airlines currently offer direct flights between Barcelona Airport and San Diego. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 16°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, Finnair offers the cheapest flight tickets to San Diego.

Flying from Barcelona-El Prat Airport (BCN) to San Diego: what you need to know

  • The timezone in San Diego is UTC-7. The city is 8 hours behind Barcelona, where Barcelona-El Prat Airport is located.

  • Leave enough time to catch your flight from BCN to San Diego. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for bigger queues during popular months like July and other peak periods. Arriving up to fours hours ahead of an international flight and two hours for domestic departures is a wise move.

  • Consider adding a stopover to potentially find a cheaper flight from BCN to San Diego. Simply deselect 'Direct flights only' when searching for the departures. Break up the journey at one of these popular airports:

    • Franz Josef Strauss Airport (MUC)

    • San Francisco International Airport (SFO)

    • London Heathrow Airport (LHR)

  • If you hold a passport from Spain, you'll need an ETA to enter United States. This applies if you're booking a cheap ticket from Barcelona-El Prat Airport to San Diego for tourism purposes. Requirements may be different if you're travelling for work or other reasons. Always consult official visa guidelines before you make travel plans and certainly before flying.

  • BCN is about 18 kilometres from central Barcelona. If you're catching a cab, driving or ride-sharing from the centre, it'll take you 24 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the travel time to be around 33 minutes.

  • Catching an early flight from Barcelona-El Prat Airport to San Diego? Avoid rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these hotels close to BCN:

How to find the cheapest flights from Barcelona-El Prat Airport (BCN) to San Diego

  • The best price we've found for a one-way ticket from Barcelona-El Prat Airport to San Diego is $560. The cheapest price for a return flight is $1,084. Keep in mind fares may change due to availability at the time of booking.

  • It's usually smart to book ahead of time if you're looking for flight tickets from BCN to San Diego. That's because airlines change prices based on demand, which tends to increase closer to departure.

  • If you're flexible with your trip dates, make the most of the 'Whole month' search tool. It'll find the lowest price across every month when looking for a ticket from Barcelona-El Prat Airport to San Diego.

  • Set up a Price Alert for flight tickets from BCN to San Diego. There's no need to search every day to see if prices have fallen. We'll notify you as soon as there's a change in price.

  • Take advantage of the filters to find your ideal trip. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Barcelona-El Prat Airport to San Diego, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) is around 5 kilometres from the centre of San Diego. With your own car rental or in a cab, the drive is around 9 minutes.

  • Getting there by public transport typically takes 20 minutes.

  • If you're coming in on a late flight from Barcelona-El Prat Airport to San Diego, few things beat the convenience of staying close to the terminal. Grab your suitcases from the carousel and then be showered and resting soon after at one of these hotels near SAN:

McClellan-Palomar Airport (CLD)

Best time to go to San Diego

  • It's time to work out your trip dates for your flight from Barcelona-El Prat Airport to San Diego. July is the busiest month for a trip to San Diego. If you want a more relaxed vibe, go in May.

  • Lock in your flight from Barcelona-El Prat Airport to San Diego for August to visit the city during its warmest month. You can expect temperatures to range from 17ºC to 28ºC.

  • Search for cheap flights from BCN to San Diego in February if you like cooler conditions. Temperatures are at their lowest around then, ranging between 7ºC and 23ºC on average.

More about San Diego

Complete your San Diego trip with a car rental

  • Pick one of our car rentals in San Diego and explore the city at your leisure. Easily compare companies in one place to find your perfect ride once you've locked in your hotel and cheap flights from Barcelona-El Prat Airport to San Diego.

Plan the rest of your trip from Barcelona to San Diego

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.