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$420+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SAN
May 25 — Jun 11
Mon 5/25
Mon 6/1
1 adult, Economy
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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 April 25, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Wed 9/96:30 pm
BCN
-
SAN
1 stop25h 24m
Multiple Airlines
Sun 9/207:15 am
SAN
-
BCN
2 stops40h 35m
Multiple Airlines
Deal found 4/23$801
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Wed 9/96:30 pm
BCN
-
SAN
1 stop25h 24m
Multiple Airlines
Sat 9/198:59 pm
SAN
-
BCN
2 stops40h 31m
Multiple Airlines
Deal found 4/23$817
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Wed 9/96:30 pm
BCN
-
SAN
1 stop25h 24m
Multiple Airlines
Tue 9/155:15 pm
SAN
-
BCN
2 stops21h 10m
Multiple Airlines
Deal found 4/23$833
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Thu 9/106:30 pm
BCN
-
SAN
1 stop25h 24m
Multiple Airlines
Sun 9/205:15 pm
SAN
-
BCN
1 stop20h 10m
Multiple Airlines
Deal found 4/23$843
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Sat 11/218:45 pm
BCN
-
SAN
2 stops56h 39m
Multiple Airlines
Sun 12/65:35 pm
SAN
-
BCN
1 stop15h 00m
Multiple Airlines
Deal found 4/23$850
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Thu 9/106:30 pm
BCN
-
SAN
1 stop25h 24m
Multiple Airlines
Tue 9/155:15 pm
SAN
-
BCN
2 stops21h 10m
Multiple Airlines
Deal found 4/23$853
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Wed 7/16:30 pm
BCN
-
SAN
1 stop26h 13m
Multiple Airlines
Tue 7/78:52 pm
SAN
-
BCN
1 stop30h 18m
Multiple Airlines
Deal found 4/20$858
This Travelis deal was found by Cheapflights users on 4/23. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:20 am
BCN
-
SAN
1 stop14h 30m
KLM
Thu 5/141:40 pm
SAN
-
BCN
1 stop20h 10m
KLM
Deal found 4/23$861
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Sat 11/2111:00 am
MAD
-
SAN
2 stops42h 24m
Multiple Airlines
Sun 12/65:35 pm
SAN
-
MAD
1 stop21h 00m
Multiple Airlines
Deal found 4/23$863
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Wed 11/186:35 pm
BCN
-
SAN
1 stop27h 19m
Multiple Airlines
Sat 12/57:00 am
SAN
-
BCN
1 stop21h 20m
Multiple Airlines
Deal found 4/23$864
This SmartFares deal was found by Cheapflights users on 4/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/72:05 pm
MAD
-
SAN
1 stop28h 45m
JetBlue
Fri 6/128:40 pm
SAN
-
MAD
1 stop29h 50m
JetBlue
Deal found 4/22$865
This KLM deal was found by Cheapflights users on 4/23. 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 5/15:15 pm
VLC
-
SAN
1 stop27h 35m
Multiple Airlines
Tue 5/57:15 am
SAN
-
VLC
2 stops19h 20m
Multiple Airlines
Deal found 4/23$867

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 April 25, 2026.

Round-trip from

$801
(Kiwi.com)

One-way from

$420
(Kiwi.com)

Popular in

January

Cheapest in

May

Average price

$993
From Spain to San Diego
Search Deals
One-way flight from Spain to San Diego
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 25, 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

Wed 5/6

5:15 pm-11:50 am

1 stop27h 35m

San Diego

Sun 5/10

1:37 pm-5:30 pm

2 stops18h 53m

$869

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 5/27

12:00 pm-11:50 am

1 stop32h 50m

San Diego

Tue 7/28

8:00 am-9:50 am

2 stops16h 50m

$900

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Fri 5/8

6:05 am-10:37 pm

3 stops25h 32m

San Diego

Mon 5/11

11:00 am-5:35 pm

2 stops21h 35m

$931

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 5/6

2:10 pm-12:28 am

2 stops19h 18m

San Diego

Sun 5/10

5:15 pm-5:55 pm

1 stop15h 40m

$932

MálagaSan Diego

AGP - SAN

AGPSAN

Malaga

Fri 5/8

9:35 am-11:59 pm

2 stops23h 24m

San Diego

Mon 5/11

6:20 am-7:35 am

2 stops16h 15m

$935

MadridSan Diego

MAD - SAN

MADSAN

Madrid Barajas

Thu 10/1

6:05 am-11:35 am

2 stops38h 30m

San Diego

Thu 10/15

9:45 pm-8:05 am

1 stop25h 20m

$938

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Fri 10/2

7:55 am-3:25 pm

1 stop16h 30m

San Diego

Tue 10/6

7:15 am-2:20 pm

1 stop22h 05m

$940

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Fri 9/11

7:55 am-3:25 pm

1 stop16h 30m

San Diego

Mon 9/14

6:20 am-2:20 pm

1 stop23h 00m

$942

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 9/7

7:55 am-3:25 pm

1 stop16h 30m

San Diego

Fri 9/18

6:20 am-2:20 pm

1 stop23h 00m

$942

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 9/12

7:55 am-3:25 pm

1 stop16h 30m

San Diego

Sun 9/20

6:20 am-2:20 pm

1 stop23h 00m

$942

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 83 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.

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 July is currently the most expensive (average of $748). 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.

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 $944, United Airlines can have you in San Diego from Spain in 20h 44m. The distance between Spain and San Diego is about 5967 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 Madrid Barajas - San Diego, Barcelona-El Prat - San Diego or Malaga - 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 July is currently the most expensive (average of $748). 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

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