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$304+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SAN
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Find 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 November 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/512:00 pmMAD - SAN
1 stop20h 27mMultiple Airlines
Tue 12/98:00 amSAN - MAD
1 stop15h 50mMultiple Airlines
Deal found 11/7$686
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Mon 11/246:50 amBCN - SAN
2 stops21h 00mLufthansa
Tue 12/95:35 pmSAN - BCN
1 stop15h 00mLufthansa
Deal found 11/9$785
This lol.travel deal was found by Cheapflights users on 11/8. 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.
Fri 12/51:35 pmMAD - SAN
2 stops36h 49mAir Canada
Tue 12/96:10 pmSAN - MAD
2 stops28h 50mAir Canada
Deal found 11/8$785
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Sun 12/146:50 amBCN - SAN
2 stops22h 02mUnited Airlines
Sun 1/1110:40 pmSAN - BCN
2 stops25h 55mUnited Airlines
Deal found 11/9$787
This lol.travel deal was found by Cheapflights users on 11/9. 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.
Sun 11/231:35 pmMAD - SAN
2 stops31h 18mAir Canada
Sat 12/66:10 pmSAN - MAD
2 stops28h 50mAir Canada
Deal found 11/9$792
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/2610:30 amBCN - SAN
1 stop19h 22mUnited Airlines
Sun 1/117:52 pmSAN - BCN
2 stops28h 08mUnited Airlines
Deal found 11/9$799
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/57:25 amMAD - SAN
1 stop17h 20mLufthansa
Tue 12/95:35 pmSAN - MAD
1 stop15h 15mLufthansa
Deal found 11/8$805
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:05 pmVLC - SAN
2 stops37h 25mLufthansa
Tue 1/1311:10 amSAN - VLC
2 stops21h 25mLufthansa
Deal found 11/10$805
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/46:45 amBIO - SAN
2 stops24h 45mUnited Airlines
Sat 2/711:08 amSAN - BIO
2 stops20h 32mUnited Airlines
Deal found 11/9$807
This lol.travel deal was found by Cheapflights users on 11/9. 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.
Sun 11/237:25 amMAD - SAN
1 stop17h 20mMultiple Airlines
Sat 12/67:42 amSAN - MAD
1 stop15h 23mMultiple Airlines
Deal found 11/9$814
This United Airlines deal was found by Cheapflights users on 11/9. 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 11/241:35 pmMAD - SAN
2 stops30h 56mUnited Airlines
Sat 5/98:50 pmSAN - MAD
2 stops24h 50mUnited Airlines
Deal found 11/9$815
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Sun 11/236:50 amBCN - SAN
2 stops22h 43mUnited Airlines
Tue 12/99:55 pmSAN - BCN
1 stop25h 25mUnited Airlines
Deal found 11/9$816

Cheap 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 November 10, 2025.

Round-trip from

$663
(Kiwi.com)

One-way from

$304
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$767
From Spain to San Diego
Search Deals
One-way flight from Spain to San Diego
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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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 November 10, 2025.
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

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sun 2/22

9:20 pm-4:10 pm

1 stop27h 50m

San Diego

Thu 3/5

6:00 pm-6:25 pm

1 stop15h 25m

$745

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Sun 2/1

8:25 pm-4:10 pm

1 stop28h 45m

San Diego

Wed 2/18

6:15 am-11:15 am

2 stops20h 00m

$752

MadridSan Diego

MAD - SAN

MADSAN

Madrid Barajas

Thu 2/19

6:00 am-5:24 pm

2 stops20h 24m

San Diego

Mon 2/23

6:30 am-8:00 am

2 stops16h 30m

$754

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Mon 2/2

1:00 pm-11:45 am

2 stops31h 45m

San Diego

Sun 2/15

11:04 am-12:10 pm

2 stops40h 06m

$755

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Thu 1/29

6:00 am-10:33 pm

2 stops25h 33m

San Diego

Sun 2/15

7:50 pm-12:10 pm

3 stops31h 20m

$755

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Mon 2/2

1:00 pm-11:45 am

2 stops31h 45m

San Diego

Wed 2/18

7:50 pm-11:50 am

3 stops31h 00m

$755

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Mon 2/2

1:00 pm-11:45 am

2 stops31h 45m

San Diego

Mon 2/16

5:00 pm-12:10 pm

2 stops34h 10m

$755

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Thu 1/29

6:00 am-9:56 pm

2 stops24h 56m

San Diego

Wed 2/18

10:15 pm-11:50 am

2 stops28h 35m

$755

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Mon 2/2

1:00 pm-11:53 am

2 stops31h 53m

San Diego

Tue 2/17

12:40 pm-7:00 pm

2 stops45h 20m

$757

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 1/26

1:45 pm-11:45 am

2 stops31h 00m

San Diego

Wed 2/25

10:15 pm-8:20 am

1 stop25h 05m

$757

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 48 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, November is the cheapest month in which you can book a flight from Spain to San Diego (average of $484). Flying from Spain to San Diego in August is currently the most expensive (average of $803). 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.

What is the cheapest time of day to fly from ES to SAN?

Find hourly flight availability from Spain to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2025.

One of the essential ways to save on airfare from Spain to San Diego is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 8% on airfare.

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 November 10, 2025.
See what other customers who have flown with American Airlines and 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.
American Airlines
7.2
Good
11,047 reviews

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
American Airlines
7.2
Good
11,047 reviews
American Airlines
7.2
Good
11,047 reviews

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
Iberia
7.0
Good
3,007 reviews
American Airlines
7.2
Good
11,047 reviews

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

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 $754, British Airways can have you in San Diego from Spain in 20h 24m. 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 most popular routes from Spain to San Diego?

    Most travelers choose Madrid Barajas - San Diego, Barcelona-El Prat - San Diego or Valencia - 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 $484). Flying from Spain to San Diego in August is currently the most expensive (average of $803). 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
Coronado
La Mesa
Poway
Lemon Grove
National City

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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 2 airlines flying from Spain to San Diego

Discover the top 2 airlines 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$639Average$726FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$768Average$1,124FlexibilityNo cancel feeOn-time71%

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