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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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — SAN
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
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 March 23, 2026.

This lol.travel deal was found by Cheapflights users on 3/21. 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 9/2112:50 pm
BCN
-
SAN
1 stop32h 30m
JetBlue
Wed 9/308:55 pm
SAN
-
BCN
1 stop27h 50m
JetBlue
Deal found 3/21$756
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/33:00 pm
BCN
-
SAN
1 stop32h 10m
Multiple Airlines
Sun 5/106:52 am
SAN
-
BCN
1 stop21h 28m
Multiple Airlines
Deal found 3/18$794
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 9/219:55 pm
BCN
-
SAN
2 stops49h 29m
Multiple Airlines
Wed 9/305:15 pm
SAN
-
BCN
1 stop15h 40m
Multiple Airlines
Deal found 3/21$812
This Expedia deal was found by Cheapflights users on 3/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:20 am
BCN
-
SAN
1 stop14h 30m
KLM
Sat 5/91:40 pm
SAN
-
BCN
1 stop20h 10m
KLM
Deal found 3/18$825
This KLM deal was found by Cheapflights users on 3/21. 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.
Wed 5/612:00 pm
BIO
-
SAN
1 stop32h 50m
Multiple Airlines
Tue 5/263:15 pm
SAN
-
BIO
2 stops17h 15m
Multiple Airlines
Deal found 3/21$833
This KLM deal was found by Cheapflights users on 3/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:45 am
BIO
-
SAN
1 stop14h 05m
KLM
Wed 4/87:00 am
SAN
-
BIO
2 stops19h 15m
KLM
Deal found 3/20$835
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:35 am
VLC
-
SAN
2 stops25h 24m
Delta
Tue 4/79:50 am
SAN
-
VLC
2 stops21h 25m
Delta
Deal found 3/20$835
This KLM deal was found by Cheapflights users on 3/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/310:20 pm
VLC
-
SAN
1 stop22h 30m
KLM
Tue 4/71:40 pm
SAN
-
VLC
1 stop33h 45m
KLM
Deal found 3/18$836
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:20 am
BCN
-
SAN
1 stop14h 30m
Delta
Sun 5/36:25 am
SAN
-
BCN
2 stops19h 50m
Delta
Deal found 3/20$839
This KLM deal was found by Cheapflights users on 3/21. 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.
Wed 5/612:00 pm
BIO
-
SAN
1 stop32h 50m
KLM
Tue 5/261:40 pm
SAN
-
BIO
1 stop24h 05m
KLM
Deal found 3/21$839
This Delta deal was found by Cheapflights users on 3/21. 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.
Tue 5/56:35 am
VLC
-
SAN
2 stops21h 24m
Delta
Tue 5/127:15 am
SAN
-
VLC
2 stops24h 00m
Delta
Deal found 3/21$839
This KLM deal was found by Cheapflights users on 3/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/310:25 am
MAD
-
SAN
1 stop34h 25m
Multiple Airlines
Fri 4/176:30 pm
SAN
-
MAD
1 stop19h 45m
Multiple Airlines
Deal found 3/19$840

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 March 23, 2026.

Round-trip from

$794
(Kiwi.com)

One-way from

$304
(Expedia)

Popular in

January

Cheapest in

March

Average price

$689
From Spain to San Diego
Search Deals
One-way flight from Spain to San Diego
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 23, 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

Sat 4/4

6:45 am-11:50 am

1 stop14h 05m

San Diego

Wed 4/8

7:00 am-11:15 am

2 stops19h 15m

$835

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Fri 4/3

10:20 pm-11:50 am

1 stop22h 30m

San Diego

Tue 4/7

1:40 pm-4:35 pm

1 stop17h 55m

$835

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 4/25

6:20 am-11:50 am

1 stop14h 30m

San Diego

Sun 5/3

6:25 am-11:15 am

2 stops19h 50m

$839

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 4/4

6:20 am-11:50 am

1 stop14h 30m

San Diego

Mon 4/20

6:25 am-11:15 am

2 stops19h 50m

$839

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 5/6

12:00 pm-11:50 am

1 stop32h 50m

San Diego

Tue 5/26

1:40 pm-10:45 pm

1 stop24h 05m

$839

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Tue 5/5

6:35 am-6:59 pm

2 stops21h 24m

San Diego

Tue 5/12

7:15 am-4:15 pm

2 stops24h 00m

$839

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Mon 5/4

6:35 am-10:36 pm

2 stops25h 01m

San Diego

Mon 5/11

2:30 pm-11:00 pm

2 stops23h 30m

$840

MadridSan Diego

MAD - SAN

MADSAN

Madrid Barajas

Fri 4/3

10:25 am-11:50 am

1 stop34h 25m

San Diego

Fri 4/17

6:30 pm-11:15 pm

1 stop19h 45m

$841

ValenciaSan Diego

VLC - SAN

VLCSAN

Valencia

Sat 5/2

6:35 am-5:23 pm

2 stops19h 48m

San Diego

Sat 5/9

1:40 pm-11:00 pm

1 stop24h 20m

$841

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sun 5/3

6:20 am-5:34 pm

2 stops20h 14m

San Diego

Sun 5/10

1:37 pm-5:10 pm

2 stops18h 33m

$844

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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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, 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 March 23, 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
3,147 reviews

Boarding

7.2

Overall

7.0

Entertainment

6.6

Comfort

6.8

Crew

7.7

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Laba,Feb 2026

DEN - DFW

Were not helpful at all when I found out at the very last minute, just when my daughter was about to board at Dallas to Madrid, that the connecting flight ticket had been reissued to somebody else.
Iberia
7.0
Good
3,147 reviews
Iberia
7.0
Good
3,147 reviews

Boarding

7.2

Overall

7.0

Entertainment

6.6

Comfort

6.8

Crew

7.7

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Laba,Feb 2026

DEN - DFW

Were not helpful at all when I found out at the very last minute, just when my daughter was about to board at Dallas to Madrid, that the connecting flight ticket had been reissued to somebody else.

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 $835, KLM can have you in San Diego from Spain in 14h 05m. The distance between Spain and San Diego is about 5742 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 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, 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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