$350 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 4/9. 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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Everything you should know

Cheapest round-trip
$626
Typical prices: $471-$683
Finnair
Mon 2/9Mon 2/23
MAD - SAN • 1 stop
Cheapest one-way
$350
Typical prices: $595-$939
Multiple Airlines
Thu 4/9
MAD - SAN • 3 stops
When to travel
March
Cheapest • 26% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Booking Insights
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

Mon, Feb 9 - Mon, Feb 23
Finnair Logo
11:30 am - 11:09 pm
MAD
-
SAN
20h 39m
1 stop
Finnair Logo
10:50 am - 9:25 am
SAN
-
MAD
13h 35m
1 stop
$626Finnair
Thu, Apr 23 - Mon, May 4
Air Canada Logo
12:15 pm - 11:53 am
BCN
-
SAN
32h 38m
2 stops
Air Canada Logo
4:45 pm - 8:00 am
SAN
-
BCN
30h 15m
2 stops
$629Air Canada
Thu, Apr 16 - Mon, Apr 20
United Airlines Logo
6:50 am - 9:16 am
BIO
-
SAN
35h 26m
2 stops
United Airlines Logo
11:01 am - 11:25 pm
SAN
-
BIO
27h 24m
2 stops
$636United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
12:55 pm - 9:40 am
VLC
-
SAN
29h 45m
2 stops
United Airlines Logo
10:30 pm - 11:55 am
SAN
-
VLC
28h 25m
2 stops
$637United Airlines
Tue, Feb 24 - Tue, Mar 3
SWISS Logo
12:55 pm - 10:44 pm
VLC
-
SAN
42h 49m
2 stops
SWISS Logo
4:00 pm - 2:10 pm
SAN
-
VLC
37h 10m
2 stops
$641SWISS
Fri, Mar 6 - Tue, Mar 10
SWISS Logo
5:35 am - 10:40 pm
AGP
-
SAN
26h 05m
2 stops
SWISS Logo
4:00 pm - 1:05 am
SAN
-
AGP
25h 05m
2 stops
$642SWISS
Fri, Feb 13 - Thu, Feb 26
Lufthansa Logo
6:00 am - 8:49 pm
MAD
-
SAN
23h 49m
2 stops
Lufthansa Logo
11:05 am - 5:50 pm
SAN
-
MAD
21h 45m
2 stops
$647Lufthansa
Fri, Feb 13 - Thu, Feb 26
Lufthansa Logo
7:25 am - 3:45 pm
MAD
-
SAN
17h 20m
1 stop
Lufthansa Logo
9:54 am - 5:50 pm
SAN
-
MAD
22h 56m
2 stops
$654Lufthansa
Mon, Feb 9 - Mon, Feb 23
Iberia Logo
10:40 am - 10:50 pm
BCN
-
SAN
21h 10m
1 stop
Iberia Logo
10:50 am - 5:55 pm
SAN
-
BCN
22h 05m
2 stops
$701Iberia
Wed, Mar 11 - Wed, Apr 1
Iberia Logo
9:35 am - 8:37 pm
BCN
-
SAN
19h 02m
1 stop
Iberia Logo
3:38 pm - 6:10 pm
SAN
-
BCN
17h 32m
2 stops
$723Iberia
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 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 May, where tickets cost $709 on average for one-way flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Spain is $1,862 and $1,257 respectively. For return trips, the best month to travel is March with an average price of $674.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 days before departure.

Good to know

Low seasonNovember
Cheapest flight$350
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 28% increase in price.
Flight from Madrid 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 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 2,646 direct flights from within Spain to San Diego. The most common day for departures is Sunday, with 16% 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.
7.0
IberiaOverall score based on 3099 reviews
7.7Crew
6.4Food
6.8Comfort
7.2Boarding
6.6Entertainment
Airline reviews

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

8.0 ExcellentAnonymous, Jan 2026
BCN - BOS
Read more Iberia reviews

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

The crew was super friendly and helpful. The food was quite good. An overall positive experience.

A more organized boarding experience and better food would have made the experience better.

why can't planes be boarded from back to front?? everything was great otherwise

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

For what we are willing to pay for international air travel, our experience was very good. We had no problem checking in, we had very little wait time at the AA counter in Madrid, and the staff in Madrid were very helpful. The flight crew was helpful and courteous, the plane was on the newer side, and our assigned seats were together without us needing to purchase them. The flight took off on time and arrived early. Overall, it was a pleasant experience or as much as could be expected in economy for almost 10 hours.

Boarding was easy, the flight left on time and even landed 20 minutes early. The food was plentiful and really good! The crew was kind & helpful. Overall it was an exceptional experience!

The flight was safe, confortable and convenient. Thank you. I hope to come back soon!

temperature was too cold there should be free blankets, seat are very uncomfortable, entertainment is limited.

Basic service for a decent price, all amenities are à la cart

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Julian
National City
Borrego Springs
Lemon Grove
Poway
Alpine
Santee

Everything you need to know for your flight to San Diego

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