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San Diego

$293+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SAN
Feb 24 — Mar 31
Tue 2/24
Tue 3/3
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 January 25, 2026.

This lol.travel deal was found by Cheapflights users on 1/23. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/510:40 am
BCN
-
SAN
1 stop17h 32m
Finnair
Mon 2/910:51 am
SAN
-
BCN
1 stop12h 59m
Finnair
Deal found 1/23$615
This lol.travel deal was found by Cheapflights users on 1/22. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/910:00 am
MAD
-
SAN
1 stop22h 09m
Finnair
Mon 2/2310:50 am
SAN
-
MAD
1 stop13h 35m
Finnair
Deal found 1/22$619
This Flysmarter deal was found by Cheapflights users on 1/23. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:15 pm
BCN
-
SAN
2 stops32h 38m
Air Canada
Mon 5/44:45 pm
SAN
-
BCN
2 stops30h 15m
Air Canada
Deal found 1/23$620
This United Airlines deal was found by Cheapflights users on 1/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:50 am
BIO
-
SAN
2 stops21h 01m
United Airlines
Sat 4/256:32 am
SAN
-
BIO
2 stops31h 53m
United Airlines
Deal found 1/23$629
This United Airlines deal was found by Cheapflights users on 1/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:55 pm
VLC
-
SAN
2 stops38h 56m
United Airlines
Sun 4/1910:30 pm
SAN
-
VLC
2 stops28h 25m
United Airlines
Deal found 1/22$630
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 3/46:35 pm
BCN
-
SAN
1 stop34h 00m
Multiple Airlines
Mon 3/3010:02 pm
SAN
-
BCN
2 stops32h 18m
Multiple Airlines
Deal found 1/23$631
This United Airlines deal was found by Cheapflights users on 1/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
BIO
-
SAN
2 stops19h 26m
United Airlines
Mon 4/2011:01 am
SAN
-
BIO
2 stops27h 24m
United Airlines
Deal found 1/23$632
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 3/46:35 pm
BCN
-
SAN
1 stop34h 00m
Multiple Airlines
Tue 3/2410:02 pm
SAN
-
BCN
2 stops37h 03m
Multiple Airlines
Deal found 1/23$633
This United Airlines deal was found by Cheapflights users on 1/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:45 am
BIO
-
SAN
2 stops26h 44m
United Airlines
Thu 3/126:35 pm
SAN
-
BIO
1 stop15h 30m
United Airlines
Deal found 1/23$633
This Expedia deal was found by Cheapflights users on 1/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/66:10 am
VLC
-
SAN
2 stops22h 44m
Multiple Airlines
Tue 2/1010:52 am
SAN
-
VLC
2 stops24h 43m
Multiple Airlines
Deal found 1/22$633
This United Airlines deal was found by Cheapflights users on 1/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:50 am
BCN
-
SAN
2 stops20h 58m
United Airlines
Mon 3/1610:15 pm
SAN
-
BCN
1 stop26h 05m
United Airlines
Deal found 1/23$634
This United Airlines deal was found by Cheapflights users on 1/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/96:00 am
MAD
-
SAN
2 stops22h 54m
United Airlines
Mon 2/237:00 am
SAN
-
MAD
2 stops17h 15m
United Airlines
Deal found 1/23$635

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 January 25, 2026.

Round-trip from

$615
(lol.travel)

One-way from

$293
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$1,189
From Spain to San Diego
Search Deals
One-way flight from Spain to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 25, 2026.
Use the filters below to find and compare flights from Spain to San Diego that are best for you.

Fly from

Spain

Fly to

San Diego

Route

Depart

Return

Price

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Mon 4/13

6:50 am-6:51 pm

2 stops21h 01m

San Diego

Sat 4/25

6:32 am-11:25 pm

2 stops31h 53m

$629

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Thu 4/16

12:55 pm-6:51 pm

2 stops38h 56m

San Diego

Sun 4/19

10:30 pm-11:55 am

2 stops28h 25m

$630

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Thu 4/16

6:50 am-5:16 pm

2 stops19h 26m

San Diego

Mon 4/20

11:01 am-11:25 pm

2 stops27h 24m

$632

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Fri 2/27

6:45 am-12:29 am

2 stops26h 44m

San Diego

Thu 3/12

6:35 pm-6:05 pm

1 stop15h 30m

$633

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Mon 2/23

1:00 pm-12:39 pm

2 stops32h 39m

San Diego

Mon 3/2

7:00 am-12:10 pm

2 stops20h 10m

$633

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Wed 2/18

6:50 am-11:51 am

2 stops38h 01m

San Diego

Sun 2/22

6:30 am-8:20 am

2 stops16h 50m

$634

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 3/9

6:50 am-7:00 pm

2 stops20h 10m

San Diego

Mon 3/16

5:50 pm-8:20 am

2 stops30h 30m

$634

MadridSan Diego

MAD - SAN

MADSAN

Madrid Barajas

Fri 2/20

8:35 am-8:46 pm

2 stops21h 11m

San Diego

Fri 2/27

6:10 pm-9:15 am

2 stops30h 05m

$635

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 4/23

6:40 am-8:46 pm

2 stops23h 06m

San Diego

Mon 5/4

1:59 pm-1:15 pm

1 stop14h 16m

$635

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 2/9

5:50 am-7:54 pm

2 stops23h 04m

San Diego

Mon 2/23

2:10 pm-5:35 pm

2 stops18h 25m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 60 results
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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

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

Currently, February is the cheapest month in which you can book a flight from Spain to San Diego (average of $267). Flying from Spain to San Diego in August is currently the most expensive (average of $802). 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.

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 January 25, 2026.
See what other customers who have flown with Iberia 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.
Iberia
7.0
Good
3,098 reviews

Comfort

6.8

Entertainment

6.6

Overall

7.0

Crew

7.7

Food

6.4

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.
Iberia
7.0
Good
3,098 reviews
Iberia
7.0
Good
3,098 reviews

Comfort

6.8

Entertainment

6.6

Overall

7.0

Crew

7.7

Food

6.4

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.

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 $639, United Airlines can have you in San Diego from Spain in 16h 57m. The distance between Spain and San Diego is about 5839 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 Iberia ($520), American Airlines ($521), and British Airways ($537).

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

    Most travelers choose Madrid Barajas - San Diego, Barcelona-El Prat - 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, February is the cheapest month in which you can book a flight from Spain to San Diego (average of $267). Flying from Spain to San Diego in August is currently the most expensive (average of $802). 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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Alternative routes for Spain to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$640Average$726FlexibilityNo cancel feeOn-time77%

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