$355 Find Cheap Flights from Spain to San Diego - Compare and Save

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Cheap Flights from Spain to San Diego

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Spain to San Diego

Fri, Jan 15 - Fri, Jan 29
Multiple Airlines Logo
9:20 pm - 12:10 pmVLC  Valencia-SAN San Diego
23h 50m1 stop Amsterdam Schiphol
Multiple Airlines Logo
7:00 am - 11:55 amSAN  San Diego-VLC Valencia
19h 55m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
$786Multiple Airlines
Sun, Jan 10 - Fri, Jan 22
Delta Logo
6:00 am - 8:48 pmVLC  Valencia-SAN San Diego
23h 48m2 stops Amsterdam Schiphol Boston Logan Intl
Delta Logo
6:15 am - 11:55 amSAN  San Diego-VLC Valencia
20h 40m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
$787Delta
Fri, Jan 15 - Fri, Jan 29
Delta Logo
6:00 am - 11:03 pmVLC  Valencia-SAN San Diego
26h 03m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Delta Logo
6:15 am - 11:55 amSAN  San Diego-VLC Valencia
20h 40m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
$787Delta
Mon, Mar 1 - Tue, Mar 30
KLM Logo
8:45 pm - 12:10 pmAGP  Malaga-SAN San Diego
24h 25m1 stop Amsterdam Schiphol
KLM Logo
1:45 pm - 4:35 pmSAN  San Diego-AGP Malaga
17h 50m1 stop Amsterdam Schiphol
$817KLM
Mon, Dec 14 - Mon, Jan 11
KLM Logo
8:30 pm - 12:10 pmMAD  Madrid Barajas-SAN San Diego
24h 40m1 stop Amsterdam Schiphol
KLM Logo
7:00 am - 7:20 amSAN  San Diego-MAD Madrid Barajas
15h 20m1 stop New York John F Kennedy Intl
$825KLM
Wed, Mar 3 - Tue, Mar 30
KLM Logo
8:30 pm - 12:10 pmMAD  Madrid Barajas-SAN San Diego
24h 40m1 stop Amsterdam Schiphol
KLM Logo
1:45 pm - 4:25 pmSAN  San Diego-MAD Madrid Barajas
17h 40m1 stop Amsterdam Schiphol
$826KLM
Thu, Feb 4 - Sun, Feb 7
United Airlines Logo
11:00 am - 12:29 amBCN  Barcelona-El Prat-SAN San Diego
22h 29m3 stops Newark Denver Intl San Francisco
United Airlines Logo
7:00 am - 8:20 amSAN  San Diego-BCN Barcelona-El Prat
16h 20m2 stops Denver Intl Newark
$897United Airlines
Thu, Feb 4 - Sun, Feb 7
United Airlines Logo
11:00 am - 12:29 amBCN  Barcelona-El Prat-SAN San Diego
22h 29m3 stops Newark Denver Intl San Francisco
United Airlines Logo
7:00 am - 8:20 amSAN  San Diego-BCN Barcelona-El Prat
16h 20m2 stops Denver Intl Newark
$898United Airlines
Fri, Oct 23 - Fri, Oct 30
Lufthansa Logo
6:40 am - 5:05 pmBCN  Barcelona-El Prat-SAN San Diego
19h 25m2 stops Frankfurt am Main Denver Intl
Lufthansa Logo
6:35 pm - 11:05 pmSAN  San Diego-BCN Barcelona-El Prat
20h 30m1 stop Munich Franz Josef Strauss
$917Lufthansa
Wed, Oct 21 - Wed, Oct 28
Lufthansa Logo
7:55 am - 3:25 pmBCN  Barcelona-El Prat-SAN San Diego
16h 30m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:35 pm - 11:05 pmSAN  San Diego-BCN Barcelona-El Prat
20h 30m1 stop Munich Franz Josef Strauss
$919Lufthansa
Booking Insights

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 flight to San Diego?

In the last 5 days, the cheapest flight deal to San Diego was found on the route from Madrid, at $786 return. The most popular connection is from Barcelona to San Diego and KAYAK users have found round-trip deals for as low as $809 in the last 5 days.

What is the cheapest month to fly to San Diego?

The cheapest month for flights to San Diego is February, where tickets cost $759 on average for return flights. On the other hand, the most expensive months are May and August, where the average cost of tickets from Spain is $1,403 and $1,211 respectively. For one-way flights, the best month to travel is May with an average price of $669.

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

To get a below average price, you should book around 6 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low season

May

Cheapest flight

$355
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly with an average 18% increase in price.
Flight from Madrid to San Diego

FAQs - booking San Diego flights

  • What is the cheapest flight to San Diego?

    In the last 5 days, the cheapest flight deal to San Diego was found on the route from Madrid, at $786 return. The most popular connection is from Barcelona to San Diego and KAYAK users have found round-trip deals for as low as $809 in the last 5 days.

  • 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 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 6,519 direct flights from within Spain to San Diego. The most common day for departures is Sunday, with 18% of flights taking off on this day.

Top tips for finding cheap flights to San Diego

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Diego flight deals.

Reviews of the top 3 airlines serving from Spain to San Diego

 
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.
7.8
KLMOverall score based on 1576 reviews
8.4Crew
7.3Food
7.8Boarding
7.7Comfort
7.2Entertainment
Airline reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

4.0 OkayJessica, Sep 2026
Read more KLM reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Flight lead was a gentleman with silver hair and he went out of his way to shake hands and interact with each passenger seated in business class. A medical emergency took place during our flight and he handled it with perfect poise and professionalism. He was gracious and confidently competent. Just what you want from a leader,

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

It was operated by Delta. Boarding took a long time. How difficult can it be? Overall decent trip. Liked the Salt Lake City airport. Better option than Chicago for transfers.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

The entire experience convinced my wife, Cathy, and me that traveling Polaris on United is the only way we’ll fly in the future. From check-in and baggage drop to the end of the 12-hour flight, the customer service was exceptional, with numerous staff members exemplifying the very best in care. On board, Andre, our primary crew chief, was sincerely friendly, a consummate professional, and, along with Freddy, one of his team members, truly among the best of the best. The captain even came through the cabin to chat with passengers—a wonderful personal touch, especially on such a long journey.

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

I really enjoyed flying with United airlines amazing experience , good customer service and great food

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Was a pain having to leave the plane and reboard but glad the plane was fixed

Connecting flights were poor,especially in Naples.our Lufthansa air bus was a joke.way too small for that long of a flight.no room at all.couldn’t even get out of the seats to move around or go to the bathrooms.we thought we were getting an actual air bus,double decker.i will never fly that long in a plane like that again.kind of misleading to call it an air bus.we actually had more room on our buses that we used.

For a 22 minute flight all you expect is for it to be safe and comfortable

Lost connnection had to stayON in Chicago Was a mess

Booked economy through United - air canada treated it as standby and was almost refused boarding.

The seats on Lufthansa’s international business class on the A350-900 is the worst product in the market. Our chief purser was AMAZING though. She is the best FA I have had in many years.

I have very bad experience with United because Vince two weeks that I did not receive my luggage yet

Good and they are leaving at time and arriving on time

The flight attendants were wonderful - one man put my carry on in the bin for me. Very attentive service. Loved the blanket and pillow waiting for me in economy. Food was excellent which is a surprise given the reputation of any airline food. Wine was fine with the meals. Delighted with the new movies - flight went by very quickly. I would definitely fly Lufthansa again.

Generally good. Not their fault but the design of the Boeing 747 had seating supports directly in line with my legs. So my legs always had to straddle this support which caused body misallignment. Such poor design from Boeing. There was no USB port for me to charge my phone. The screen touch control was very poor.

Patrick and the whole crew were amazing! Hope to have this team for all my European trips.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

They don’t give information on why a flight is delayed in a timely manner. Very frustrating.

The food was straight up bad not gonna lie, seats are uncomfortable so I had to re-adjust my self most of the time, delayed our arrival time by alot.

Wasn’t overbooked, so it was nice having an empty seat next to me. Appreciated the on time flight. Food was really bad though. Received stale vegetarian sandwich with just a slice of cheese and shredded carrots on it. Very strange and not tasty. I didn’t order a vegetarian meal either way of my trip but received all vegetarian meals because they said that’s all they have available.

Traveling to a place near San Diego?

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