$285 Find Cheap Flights from Spain to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Diego departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
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Cheap Flights from Spain to San Diego

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Spain to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Spain to San Diego

Wed, Sep 3 - Tue, Sep 9
Iberia Logo
12:20 pm - 8:20 pmBCN-SAN
17h 00m1 stop
Iberia Logo
10:42 am - 10:10 amSAN-BCN
14h 28m1 stop
$612Iberia
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Fri, Oct 17 - Sat, Oct 25
 Logo
6:30 pm - 11:18 amBCN-SAN
25h 48m1 stop
 Logo
2:05 pm - 9:55 pmSAN-BCN
46h 50m2 stops
Fri, Oct 17 - Sat, Oct 25
 Logo
6:30 pm - 11:18 amBCN-SAN
25h 48m1 stop
 Logo
9:58 am - 4:45 pmSAN-BCN
21h 47m1 stop
Thu, Sep 11 - Mon, Sep 15
Lufthansa Logo
6:00 am - 5:29 pmVLC-SAN
20h 29m2 stops
Lufthansa Logo
2:11 pm - 6:00 pmSAN-VLC
42h 49m2 stops
$664Lufthansa
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Wed, Sep 17 - Wed, Oct 8
United Airlines Logo
12:45 pm - 3:50 pmMAD-SAN
36h 05m2 stops
United Airlines Logo
10:30 pm - 6:40 amSAN-MAD
23h 10m2 stops
$667United Airlines
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Wed, Sep 3 - Tue, Sep 9
United Airlines Logo
12:10 pm - 9:08 pmBCN-SAN
17h 58m2 stops
United Airlines Logo
10:38 am - 1:15 pmSAN-BCN
17h 37m2 stops
$676United Airlines
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Wed, Sep 3 - Tue, Sep 9
Lufthansa Logo
9:05 am - 3:25 pmBCN-SAN
15h 20m1 stop
Lufthansa Logo
10:38 am - 2:00 pmSAN-BCN
18h 22m1 stop
$677Lufthansa
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Wed, Sep 17 - Wed, Oct 8
British Airways Logo
1:45 pm - 9:45 pmMAD-SAN
17h 00m1 stop
British Airways Logo
4:40 pm - 4:15 pmSAN-MAD
14h 35m1 stop
$680British Airways
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Tue, Nov 11 - Wed, Nov 19
British Airways Logo
1:15 pm - 9:34 pmMAD-SAN
17h 19m1 stop
British Airways Logo
9:53 am - 8:55 amSAN-MAD
14h 02m1 stop
$690British Airways
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Thu, Jul 17 - Fri, Dec 19
American Airlines Logo
7:45 am - 2:50 pmBCN-SAN
16h 05m1 stop
American Airlines Logo
8:55 am - 1:05 pmSAN-BCN
19h 10m1 stop
$1,145American Airlines
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KAYAK's insights & trends for flights to San Diego

Get data-powered insights and trends for flights to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to San Diego is March, where tickets cost $664 on average for return flights. On the other hand, the most expensive months are July and April, where the average cost of tickets from Spain is $1,121 and $955 respectively. For one-way flights, the best month to travel is February with an average price of $662.

How far in advance should I book a flight to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.


Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$285
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Barcelona to San Diego

FAQs - booking San Diego flights

  • How far is San Diego Airport from central San Diego?

    The city center of San Diego is 3 miles from San Diego Airport.

  • What is the name of San Diego’s airport?

    There is only 1 airport in San Diego, called San Diego Airport (SAN). It can also be referred to as Lindbergh Field, San Diego, or San Diego Intl.

  • How much is a flight to San Diego?

    On average, a flight to San Diego costs $235. The cheapest price found on KAYAK in the last 2 weeks cost $143 and departed from Barcelona-El Prat Airport.

  • What is the cheapest day to fly to San Diego?

    Based on KAYAK data, the cheapest day to fly to San Diego is Monday where round-trip tickets can be as cheap as $856. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,071 on average.

  • How does KAYAK find such low prices on flights to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to San Diego?

    The cheapest time of day to fly to San Diego is generally in the morning, when round-trip flights cost $904 on average. The most expensive time of day to fly to San Diego is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,239.

  • How many direct flights to San Diego are there each week?

    Each week there are around 2,201 direct flights from within Spain to San Diego. The most common day for departures is Friday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to San Diego

  • Looking for cheap airfare to San Diego? 25% of our users found round-trip tickets to San Diego for the following prices or less: From Barcelona-El Prat $143
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Diego flight deals.

Top 4 airlines serving from Spain to San Diego

 
See real verified KAYAK customer reviews for airlines flying to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Spain to San Diego. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8801 reviews
7.0Entertainment
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
Airline reviews

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

8.0 ExcellentLawrence, Jun 2025HNL - SFO
Read more United Airlines reviews

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Its good expeince but in enternteiment please be like you tube the music i like or movie

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

A bit rush for transit. Food and entertainment are not available

Wonderful and fast TSA checkpoint. The line was fast and our gate was close by

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Long 5 hour and 45 min flight and only one drink service and cookie snack

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

You get what you pay for. In general I like the service and flight attendants.

Excellent! Outstanding customer service, the best service I have received. Food was served, dinner, snacks, beverages, crew was there to greet you. 10/10

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Great to have power available for every seat in Premium Economy. I do wish the WiFi was less expensive. It was 23-24 Euros for the flight for one device. And there were times it was unavailable.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

The crew on AA international flights in my experience are generally lazy, rude, and inefficient. These guys did not disappoint.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

I wish they could put the pre-tsa check on the tickets or global entry.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

Everything you need to know for your flight to San Diego

Information on the airport you'll fly into in San Diego

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