$429 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 9/16. 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, 0 bags

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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Flight Deals

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

Tue, Sep 15 - Sat, Sep 26
Multiple Airlines Logo
7:00 pm - 2:42 pm
BCN
-
SAN
28h 42m
2 stops
Multiple Airlines Logo
7:03 am - 1:35 pm
SAN
-
BCN
21h 32m
1 stop
$769Multiple Airlines
Sat, Sep 5 - Mon, Sep 21
Multiple Airlines Logo
11:05 am - 11:49 pm
MAD
-
SAN
21h 44m
2 stops
Multiple Airlines Logo
1:10 pm - 8:50 am
SAN
-
MAD
34h 40m
1 stop
$808Multiple Airlines
Tue, Sep 15 - Sat, Sep 26
JetBlue Logo
12:50 pm - 12:22 pm
BCN
-
SAN
32h 32m
1 stop
JetBlue Logo
3:00 pm - 9:45 am
SAN
-
BCN
33h 45m
1 stop
$840JetBlue
Fri, Jun 12 - Mon, Jun 15
JetBlue Logo
2:05 pm - 12:36 pm
MAD
-
SAN
31h 31m
1 stop
JetBlue Logo
10:20 am - 11:30 am
SAN
-
MAD
16h 10m
1 stop
$842JetBlue
Sat, Sep 5 - Mon, Sep 21
Delta Logo
6:45 am - 11:50 am
BIO
-
SAN
14h 05m
1 stop
Delta Logo
6:15 am - 9:50 am
SAN
-
BIO
18h 35m
2 stops
$882Delta
Sat, Sep 5 - Mon, Sep 21
Delta Logo
12:00 pm - 8:48 pm
BIO
-
SAN
17h 48m
2 stops
Delta Logo
6:15 am - 9:50 am
SAN
-
BIO
18h 35m
2 stops
$888Delta
Sat, Sep 12 - Sun, Sep 27
Lufthansa Logo
6:05 am - 6:30 pm
VLC
-
SAN
21h 25m
2 stops
Lufthansa Logo
5:15 pm - 5:10 pm
SAN
-
VLC
14h 55m
1 stop
$891Lufthansa
Sat, Sep 19 - Sun, Oct 4
Lufthansa Logo
6:05 am - 6:35 pm
VLC
-
SAN
21h 30m
2 stops
Lufthansa Logo
5:15 pm - 5:10 pm
SAN
-
VLC
14h 55m
1 stop
$892Lufthansa
Wed, Nov 18 - Mon, Nov 30
KLM Logo
8:30 pm - 12:10 pm
MAD
-
SAN
24h 40m
1 stop
KLM Logo
7:00 am - 8:00 am
SAN
-
MAD
16h 00m
1 stop
$897KLM
Fri, Nov 6 - Sat, Nov 14
KLM Logo
8:05 pm - 12:10 pm
BCN
-
SAN
25h 05m
1 stop
KLM Logo
2:05 pm - 4:35 pm
SAN
-
BCN
17h 30m
1 stop
$897KLM
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?

These are the best round-trip prices found by users searching on KAYAK in the last 3 days.

In the last 3 days, the cheapest flight deal to San Diego was found on the route from Madrid, at $769 return. The most popular connection is from San Francisco to San Diego and KAYAK users have found round-trip deals for as low as $108 in the last 3 days.

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 February, where tickets cost $648 on average for return flights. On the other hand, the most expensive months are December and March, where the average cost of tickets from Spain is $1,263 and $1,233 respectively. For one-way flights, the best month to travel is February with an average price of $631.

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 4 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$429
Best time to beat the crowds with an average 30% drop 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 3 days, the cheapest flight deal to San Diego was found on the route from Madrid, at $769 return. The most popular connection is from San Francisco to San Diego and KAYAK users have found round-trip deals for as low as $108 in the last 3 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 4,980 direct flights from within Spain to San Diego. The most common day for departures is Sunday, with 17% 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 airline flying 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.
7.8
KLMOverall score based on 1524 reviews
7.7Comfort
8.4Crew
7.2Entertainment
7.3Food
7.8Boarding
Airline reviews

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

10.0 ExcellentBob, May 2026
AMS - YYZ
Read more KLM reviews

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

Brand new plane lots of room the snack was very flavourful and enjoyable

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

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

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Julian
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Everything you need to know for your flight to San Diego

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