HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$418+ Cheap flights from Spain to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SAN
Jun 20 — Jun 271
Sat 6/20
Sat 6/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Spain to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Spain to San Diego

Cheapest flights from Spain to San Diego
Explore the most affordable flight options available from Spain to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:35 pm
BCN
-
SAN
1 stop27h 19m
Multiple Airlines
Sat 12/57:00 am
SAN
-
BCN
1 stop21h 20m
Multiple Airlines
Deal found 5/16$757
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:35 pm
BCN
-
SAN
1 stop27h 19m
Multiple Airlines
Wed 12/27:00 am
SAN
-
BCN
2 stops21h 20m
Multiple Airlines
Deal found 5/16$763
This Aviatur deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aviatur is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:50 pm
BCN
-
SAN
1 stop32h 32m
JetBlue
Fri 9/258:20 pm
SAN
-
BCN
1 stop28h 25m
JetBlue
Deal found 5/17$817
This SWISS deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:05 am
MAD
-
SAN
2 stops19h 40m
SWISS
Sat 12/54:06 pm
SAN
-
MAD
2 stops32h 14m
SWISS
Deal found 5/16$856
This Condor deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:00 am
BCN
-
SAN
2 stops25h 07m
Multiple Airlines
Tue 6/29:01 am
SAN
-
BCN
2 stops21h 59m
Multiple Airlines
Deal found 5/19$862
This eDestinos deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:00 am
BCN
-
SAN
2 stops20h 02m
Multiple Airlines
Fri 10/211:11 am
SAN
-
BCN
2 stops19h 54m
Multiple Airlines
Deal found 5/18$864
This Scandinavian Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:35 pm
BIO
-
SAN
2 stops36h 13m
Scandinavian Airlines
Tue 9/297:00 am
SAN
-
BIO
2 stops26h 45m
Scandinavian Airlines
Deal found 5/17$871
This Condor deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:00 am
BCN
-
SAN
2 stops21h 07m
Multiple Airlines
Mon 6/19:01 am
SAN
-
BCN
2 stops21h 59m
Multiple Airlines
Deal found 5/19$873
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:10 pm
BCN
-
SAN
1 stop25h 02m
Multiple Airlines
Thu 9/248:12 am
SAN
-
BCN
1 stop20h 23m
Multiple Airlines
Deal found 5/20$879
This eDestinos deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:00 am
BCN
-
SAN
2 stops20h 02m
Multiple Airlines
Fri 9/251:00 pm
SAN
-
BCN
2 stops18h 05m
Multiple Airlines
Deal found 5/17$880
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:35 am
VLC
-
SAN
2 stops23h 04m
Delta
Tue 6/26:30 am
SAN
-
VLC
2 stops20h 05m
Delta
Deal found 5/18$888
This KLM deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:00 pm
BIO
-
SAN
1 stop32h 50m
KLM
Tue 6/163:22 pm
SAN
-
BIO
2 stops16h 08m
KLM
Deal found 5/16$889

Find flight deals from Spain to San Diego

Keep the following information in mind while searching for Spain to San Diego flight deals. Data was last updated May 21, 2026.

Round-trip from

$817
(Aviatur)

One-way from

$418
(Trip.com)

Popular in

May

Cheapest in

February

Average price

$1,470
From Spain to San Diego
Search Deals
One-way flight from Spain to San Diego
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($131 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Spain to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 21, 2026.
Use the filters below to find and compare flights from Spain to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Fri 9/25

7:35 pm-10:48 pm

2 stops36h 13m

San Diego

Tue 9/29

7:00 am-6:45 pm

2 stops26h 45m

$871

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 11/12

6:00 am-12:10 pm

1 stop15h 10m

San Diego

Sun 11/15

9:45 am-2:00 pm

2 stops19h 15m

$892
Quickest round-trip

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Tue 9/15

6:20 am-11:50 am

1 stop14h 30m

San Diego

Fri 9/25

1:30 pm-3:35 pm

2 stops17h 05m

$893

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 11/9

1:10 pm-12:10 pm

1 stop32h 00m

San Diego

Tue 11/17

11:40 am-3:00 pm

2 stops18h 20m

$894

MadridSan Diego

MAD - SAN

MADSAN

Madrid Barajas

Sat 10/10

6:00 am-11:50 am

1 stop14h 50m

San Diego

Sat 10/31

8:00 am-11:30 am

2 stops19h 30m

$895

MadridSan Diego

MAD - SAN

MADSAN

Madrid Barajas

Fri 9/18

6:00 am-6:54 pm

2 stops21h 54m

San Diego

Thu 10/1

3:59 pm-7:15 pm

2 stops18h 16m

$899

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Fri 9/18

6:20 am-3:19 pm

2 stops17h 59m

San Diego

Fri 10/2

10:00 pm-8:35 am

1 stop25h 35m

$902

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 6/4

6:20 am-11:50 am

1 stop14h 30m

San Diego

Thu 6/18

1:36 pm-5:10 pm

2 stops18h 34m

$910

MálagaSan Diego

AGP - SAN

AGPSAN

Malaga

Fri 11/6

4:10 pm-12:10 pm

1 stop29h 00m

San Diego

Tue 12/1

1:05 pm-4:55 pm

2 stops18h 50m

$921

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Fri 9/25

6:45 am-9:32 am

2 stops35h 47m

San Diego

Tue 9/29

5:15 pm-5:55 pm

1 stop15h 40m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Spain to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Spain with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Spain to San Diego

What is the cheapest month to book a flight from Spain to San Diego?

Currently, November is the cheapest month in which you can book a flight from Spain to San Diego (average of $234). Flying from Spain to San Diego in December is currently the most expensive (average of $719). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from Spain to San Diego?

To ensure you get the cheapest price possible for a flight from Spain to San Diego, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated May 21, 2026.
See what other customers who have flown with KLM from Spain to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,518 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Entertainment

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,518 reviews
KLM
7.8
Good
1,518 reviews

Comfort

7.7

Food

7.3

Overall

7.8

Entertainment

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Spain to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Spain?

    Most people fly into San Diego (SAN) if they book a flight to San Diego from Spain. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

  • How long is the flight from Spain to San Diego?

    For as low as $892, Scandinavian Airlines can have you in San Diego from Spain in 15h 10m. The distance between Spain and San Diego is about 6025 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Spain to San Diego one-way?

    The cheapest airlines for a one-way flight from Spain to San Diego are American Airlines ($499), Iberia ($520), and British Airways ($527).

  • What are the most popular routes from Spain to San Diego?

    Most travelers choose Barcelona-El Prat - San Diego, Madrid Barajas - San Diego or Bilbao - San Diego when deciding on the best route from Spain to San Diego.

  • Can I find deals for flights from Spain to San Diego that include hotel bookings?

    Yes. In addition to deals on Spain to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Spain to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Spain to San Diego.

  • Can I find deals for business class flights from Spain to San Diego?

    Yes. Cheapflights offers flight deals from Spain to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Spain to San Diego?

    Currently, November is the cheapest month in which you can book a flight from Spain to San Diego (average of $234). Flying from Spain to San Diego in December is currently the most expensive (average of $719). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Spain to San Diego

Discover the top airline that operate flights from Spain to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$933Average$934FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.