$315 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 5/21. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals 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.

Recent round-trip flight deals from Spain to San Diego

KAYAK's recommended round-trip deals from the most popular airlines that fly from Spain to San Diego.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
2:25 pm - 12:11 pmBCN-SAN
30h 46m2 stops
 Logo
10:20 am - 4:45 pmSAN-BCN
21h 25m1 stop
Sat, May 10 - Sat, May 17
Finnair Logo
10:45 am - 11:59 pmBCN-SAN
22h 14m1 stop
Finnair Logo
10:19 am - 10:30 amSAN-BCN
15h 11m1 stop
$673Finnair
Find Deal
Wed, May 7 - Mon, May 26
 Logo
2:25 pm - 12:11 pmBCN-SAN
30h 46m2 stops
 Logo
8:32 am - 4:45 pmSAN-BCN
23h 13m1 stop
Sat, May 10 - Sun, May 18
Iberia Logo
10:45 am - 11:28 pmBCN-SAN
21h 43m1 stop
Iberia Logo
7:50 pm - 10:40 pmSAN-BCN
17h 50m1 stop
$684Iberia
Find Deal
Thu, May 1 - Mon, May 5
Iberia Logo
12:20 pm - 8:46 pmBCN-SAN
17h 26m1 stop
Iberia Logo
6:28 am - 9:05 amSAN-BCN
17h 37m1 stop
$691Iberia
Find Deal
Wed, May 7 - Mon, May 26
United Airlines Logo
6:50 am - 9:49 pmBCN-SAN
23h 59m2 stops
United Airlines Logo
4:10 pm - 7:50 amSAN-BCN
30h 40m3 stops
$759United Airlines
Find Deal
Thu, May 8 - Sat, May 24
United Airlines Logo
12:15 pm - 11:05 pmBCN-SAN
19h 50m2 stops
United Airlines Logo
11:15 am - 1:15 pmSAN-BCN
17h 00m2 stops
$774United Airlines
Find Deal
Wed, May 7 - Mon, May 26
American Airlines Logo
9:20 am - 8:52 pmLCG-SAN
20h 32m2 stops
American Airlines Logo
3:04 pm - 5:05 pmSAN-LCG
17h 01m2 stops
$873American Airlines
Find Deal
Wed, Apr 30 - Sun, May 4
British Airways Logo
6:15 pm - 11:28 pmVLC-SAN
38h 13m2 stops
British Airways Logo
7:50 pm - 11:05 amSAN-VLC
30h 15m1 stop
$932British Airways
Find Deal
Sat, Apr 26 - Sat, May 3
British Airways Logo
10:45 am - 7:20 pmBCN-SAN
17h 35m1 stop
British Airways Logo
9:55 am - 10:10 amSAN-BCN
15h 15m1 stop
$952British Airways
Find Deal
Thu, Jun 12 - Thu, Jun 19

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 day to fly to San Diego?

The average price of all round-trip flights to San Diego clicked on KAYAK for each day over the last 12 months.
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.

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 June, where the average cost of tickets from Spain is $1,109 and $1,031 respectively. For one-way flights, the best month to travel is February with an average price of $662.

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

The average price for all round-trip flights to San Diego depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
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 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 season

March

High season

August

Cheapest flight

$315
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Valencia 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.

  • 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.

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

    Each week there are around 2,228 direct flights from within Spain to San Diego. The most common day for departures is Monday, with 15% of flights taking off on this day.

See more FAQs

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 8656 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2025GUA - LAX
Read more United Airlines reviews

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 ;)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

headphone jack didnt work for the first flight and not much variety

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Great. Food going from Australia to the US was better than other way around, but still needs improvement in terms of quality and quantity!!!

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

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

AA is always pretty solid. Was on time all the way around today so can’t complain!

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

We upgraded to Business class paying approx. $1,300. Despite the upgrade, we were still required to pay an additional €70 for a checked bag. Furthermore, we were informed that another €70 would have been charged for our carry-on bag, as it was 3kg over the limit. To avoid this, we had to move clothing from the carry-on into the checked bag, which was both inconvenient and frustrating. Given the significant amount paid for the Business Class upgrade, we found this treatment to be quite appalling and disappointing. We expected a higher level of service and consideration for our luggage, and this experience did not meet those expectations.

At Barcelona, you have to get your passports checked before going to the E gates so give yourself time for that. The restaurants around the D and E gates are really limited compared to prior to passport control. On boarding, the gate staff tried to charge me EUR100 for my carryon, saying it was too big. I put it in their ‘measurement box’ and it fit with the top slightly protruding where the handle was. The gate staff then said my bag was ok to carry and put an ‘approved’ tag on my bag. I was bussed to the plane I boarded a ‘Level’ carrier which I had not heard of before. If you booked through a code share like American, you will be served food and alcohol on the plane. They do not provide complimentary ear phones or blankets. The internet was free but only for texting. WhatsApp worked but Spotify did not. Entertainment choice was adequate, movies were old and selection was limited. On arrival at LAX, my checked in bag was damaged as the wheel was broken. I am taking this up with Iberia. Their website and customer service was moderate in terms of user friendliness. You have to have all your documents and prepared to be patient and persistent. Let’s see how this goes. All n all, for the price I paid, I would recommend Level.

Was very unhappy with the entire process, from check in to boarding to the comfort of the flight. Did not enjoy the flight on Level.

Overall a great. However, the seating is way too narrow, for guys with any shoulder width. Luckily the crew moved the guy next to me, or it would have been miserable.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

The flight was decent. I purchased my flight through Iberia, traveling with my elderly mother with mobility issues. I try to pay for luggage and seats online prior but Iberia website directs me to AA website. AA airlines website does not recognize the record locator. My mother and I are separated and each get a middle seat. She is seated the furthest away from a bathroom. I had to sit behind her to see her wave at me to use the bathroom. Lights out on the flight and I could not see her wave and she is not tech savvy to push an attendant button even though I showed her how. The attention to this detail puts AA at the bottom of my list when traveling with my elderly mother. Bad execution and handling when servicing those with extra needs due to mobility. I could not get her to the bathroom because she’s slow and she had to wait for me to get up from my middle seat then move her out of her middle seat. She had an accident which required that I hel her clean up before taking her back to her seat.

The flight staff was excellent, one of the best I've had. Food and wine was very good and seats very comfortable. Luggage came out pretty quickly too considering the number of passengers. Also, excellent internet. The only thing that could have been improved on was the choice of movies -- kind of limited and not great selections.

The plane was not well maintained. The entertainment system didn’t work properly, eg moving map. Many of the seat controls did not work. Cabin temperature fluctuated considerably during the flight. The seat allocated was poor, it was noisy and offered no privacy. The perfume in the toilet triggered severe allergies. Crew was very goid.

The seats in row 31 are terrible and small and uncomfortable. Don't ever sit there. The window seat is so close to the curve of the plane is so annoying. I paid extra for this seat and I hated all 10 hours in it.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

Boarding was chaotic. Glad we were group 5 and still had cabin storage available when we boarded. I was expecting crew would get our carryons at the gate since theyclaimed it was a full flight.

Boarding crew is unfriendly as i was asked to handover carryon luggage too upto final destination Bangalore I was not prepared for that and i had to travel without my diabetic and hypertension medicines

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Everything you need to know for your flight to San Diego

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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.