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Cheap flights from Spain to San Diego from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Spain to San Diego departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Spain to San Diego

Recent round-trip flight deals from Spain to San Diego

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:55 am - 6:19 pmMAD  Madrid Barajas-SAN San Diego
21h 24m2 stops Rome Fiumicino San Francisco
Multiple Airlines Logo
10:28 am - 5:10 pmSAN  San Diego-MAD Madrid Barajas
21h 42m2 stops San Francisco Rome Fiumicino
$639Multiple Airlines
Wed, Sep 16 - Tue, Sep 29
Multiple Airlines Logo
10:55 am - 2:10 pmMAD  Madrid Barajas-SAN San Diego
36h 15m2 stops Halifax Intl Calgary
Multiple Airlines Logo
10:28 am - 2:10 pmSAN  San Diego-MAD Madrid Barajas
18h 42m1 stop San Francisco
$807Multiple Airlines
Thu, Sep 17 - Tue, Sep 29
Multiple Airlines Logo
8:00 am - 9:58 pmBCN  Barcelona-El Prat-SAN San Diego
22h 58m2 stops Frankfurt am Main Seattle/Tacoma Intl
Multiple Airlines Logo
9:20 am - 10:10 pmSAN  San Diego-BCN Barcelona-El Prat
28h 50m2 stops Seattle/Tacoma Intl Frankfurt am Main
$815Multiple Airlines
Wed, Oct 21 - Sun, Oct 25
TAP AIR PORTUGAL Logo
7:40 am - 8:20 pmMAD  Madrid Barajas-SAN San Diego
21h 40m2 stops Lisbon Humberto Delgado Boston Logan Intl
TAP AIR PORTUGAL Logo
9:40 pm - 9:30 amSAN  San Diego-MAD Madrid Barajas
26h 50m2 stops Boston Logan Intl Lisbon Humberto Delgado
$816TAP AIR PORTUGAL
Sun, Jan 10 - Sun, Jan 31
Lufthansa Logo
12:50 pm - 12:29 amVLC  Valencia-SAN San Diego
20h 39m2 stops Frankfurt am Main San Francisco
Lufthansa Logo
2:09 pm - 5:30 pmSAN  San Diego-VLC Valencia
18h 21m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
$875Lufthansa
Fri, Jan 15 - Fri, Jan 29
Lufthansa Logo
12:50 pm - 12:29 amVLC  Valencia-SAN San Diego
20h 39m2 stops Frankfurt am Main San Francisco
Lufthansa Logo
2:09 pm - 5:30 pmSAN  San Diego-VLC Valencia
18h 21m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
$876Lufthansa
Fri, Jan 15 - Fri, Jan 29
Lufthansa Logo
7:30 am - 3:45 pmBCN  Barcelona-El Prat-SAN San Diego
17h 15m1 stop Munich Franz Josef Strauss
Lufthansa Logo
5:35 pm - 5:35 pmSAN  San Diego-BCN Barcelona-El Prat
15h 00m1 stop Munich Franz Josef Strauss
$888Lufthansa
Sat, Jan 9 - Sat, Feb 6
KLM Logo
10:00 am - 11:45 pmMAD  Madrid Barajas-SAN San Diego
22h 45m1 stop New York John F Kennedy Intl
KLM Logo
6:20 am - 9:55 amSAN  San Diego-MAD Madrid Barajas
18h 35m1 stop Atlanta Hartsfield-Jackson
$915KLM
Thu, Jan 7 - Sat, Feb 27
KLM Logo
10:25 am - 11:50 amMAD  Madrid Barajas-SAN San Diego
34h 25m1 stop Amsterdam Schiphol
KLM Logo
6:15 am - 12:15 pmSAN  San Diego-MAD Madrid Barajas
21h 00m1 stop Atlanta Hartsfield-Jackson
$939KLM
Fri, Sep 11 - Tue, Oct 13
KLM Logo
4:30 pm - 3:56 pmSCQ  Santiago de Compostela-SAN San Diego
32h 26m2 stops Amsterdam Schiphol Salt Lake City
KLM Logo
1:40 pm - 4:00 pmSAN  San Diego-SCQ Santiago de Compostela
17h 20m1 stop Amsterdam Schiphol
$941KLM
Tue, Aug 25 - Sat, Sep 26

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United Airlines flights from Spain to San Diego

Our best United Airlines deals on Spain to San Diego flight tickets
United Airlines
Oct 27
BCN11:00 amBarcelona-El Prat
18h 22m
1 stop
SAN9:22 pmSan Diego
Nov 13
SAN10:40 amSan Diego
17h 35m
1 stop
BCN1:15 pmBarcelona-El Prat
$823
United Airlines
Oct 24
BCN12:00 pmBarcelona-El Prat
19h 49m
1 stop
SAN10:49 pmSan Diego
Nov 16
SAN8:00 amSan Diego
16h 00m
1 stop
BCN9:00 amBarcelona-El Prat
$843
United Airlines
Jan 22
BIO6:45 amBilbao
26h 44m
2 stops
SAN12:29 amSan Diego
Jan 25
SAN11:20 amSan Diego
26h 50m
2 stops
BIO11:10 pmBilbao
$875

British Airways flights from Spain to San Diego

Our best British Airways deals on Spain to San Diego flight tickets
British Airways
Oct 25
BCN6:40 amBarcelona-El Prat
18h 30m
1 stop
SAN5:10 pmSan Diego
Nov 12
SAN6:00 pmSan Diego
15h 25m
1 stop
BCN6:25 pmBarcelona-El Prat
$841
British Airways
Oct 25
BCN6:40 amBarcelona-El Prat
18h 30m
1 stop
SAN5:10 pmSan Diego
Nov 14
SAN6:00 pmSan Diego
17h 15m
1 stop
BCN8:15 pmBarcelona-El Prat
$855
British Airways
Oct 25
BCN6:40 amBarcelona-El Prat
18h 30m
1 stop
SAN5:10 pmSan Diego
Nov 16
SAN6:00 pmSan Diego
14h 55m
1 stop
BCN5:55 pmBarcelona-El Prat
$861

momondo 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, momondo users made 832,500 searches. Data last updated August 11, 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

MadridSan Diego

MAD Madrid Barajas - SAN San Diego

MADSAN

Madrid Barajas

Wed 9/16

5:55 am-6:19 pm

2 stops21h 24m

San Diego

Tue 9/29

10:28 am-5:10 pm

2 stops21h 42m

$639

MadridSan Diego

MAD Madrid Barajas - SAN San Diego

MADSAN

Madrid Barajas

Thu 9/17

10:55 am-2:10 pm

2 stops36h 15m

San Diego

Tue 9/29

10:28 am-2:10 pm

1 stop18h 42m

$807

BarcelonaSan Diego

BCN Barcelona-El Prat - SAN San Diego

BCNSAN

Barcelona-El Prat

Wed 10/21

8:00 am-9:58 pm

2 stops22h 58m

San Diego

Sun 10/25

9:20 am-10:10 pm

2 stops28h 50m

$815

MadridSan Diego

MAD Madrid Barajas - SAN San Diego

MADSAN

Madrid Barajas

Sun 1/10

7:40 am-8:20 pm

2 stops21h 40m

San Diego

Sun 1/31

9:40 pm-9:30 am

2 stops26h 50m

$816

ValenciaSan Diego

VLC Valencia - SAN San Diego

VLCSAN

Valencia

Fri 1/15

12:50 pm-12:29 am

2 stops20h 39m

San Diego

Fri 1/29

2:09 pm-5:30 pm

2 stops18h 21m

$875

ValenciaSan Diego

VLC Valencia - SAN San Diego

VLCSAN

Valencia

Fri 1/15

12:50 pm-12:29 am

2 stops20h 39m

San Diego

Fri 1/29

2:09 pm-5:30 pm

2 stops18h 21m

$876
Quickest round-trip

BarcelonaSan Diego

BCN Barcelona-El Prat - SAN San Diego

BCNSAN

Barcelona-El Prat

Sat 1/9

7:30 am-3:45 pm

1 stop17h 15m

San Diego

Sat 2/6

5:35 pm-5:35 pm

1 stop15h 00m

$888

MadridSan Diego

MAD Madrid Barajas - SAN San Diego

MADSAN

Madrid Barajas

Thu 1/7

10:00 am-11:45 pm

1 stop22h 45m

San Diego

Sat 2/27

6:20 am-9:55 am

1 stop18h 35m

$915

MadridSan Diego

MAD Madrid Barajas - SAN San Diego

MADSAN

Madrid Barajas

Fri 9/11

10:25 am-11:50 am

1 stop34h 25m

San Diego

Tue 10/13

6:15 am-12:15 pm

1 stop21h 00m

$939

Santiago de CompostelaSan Diego

SCQ Santiago de Compostela - SAN San Diego

SCQSAN

Santiago de Compostela

Tue 8/25

4:30 pm-3:56 pm

2 stops32h 26m

San Diego

Sat 9/26

1:40 pm-4:00 pm

1 stop17h 20m

$941

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Spain to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of February, then departing from Spain during the month October is also very affordable. Most momondo users find prices during this month for around $800.

Can stopping save me money on Spain to San Diego flights?

You could potentially save up to 41% on your flight if you consider stops on a Spain to San Diego flight.

Cheap Spain to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Spain to San Diego

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from Spain to San Diego takes 14h 05m
There are no direct flights from Spain to San Diego. There are no popular flight routes from Spain to San Diego.
Search flight deals

Frequently asked questions about flying from Spain to San Diego

  • When did momondo last update prices for flights from Spain to San Diego Airport?

    Prices for flights from Spain to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from Spain to San Diego Airport?

  • How old do you have to be to fly from Spain to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Spain to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Spain to San Diego

Compare and see reviews for airlines that fly from Spain to San Diego with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $836Free CancellationRating
6.8
8,180 reviews
Search Lufthansa flights
KLMPriceFrom $884Free CancellationRating
7.8
1,556 reviews
Search KLM flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
Coronado
El Cajon
National City
Julian
La Mesa
Poway
San Ysidro
Imperial Beach
Santee
Borrego Springs
Lemon Grove
Alpine

Why use momondo?

Why should I use momondo to find a flight deal from Spain to San Diego?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Spain to San Diego. momondo saves you time and could save you money on your trip.

Can I find flights from Spain to San Diego with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Spain to San Diego flights to just show those with flexible booking policies.

How can momondo help me find flights from Spain to San Diego?

momondo provides multiple filters to help you find the best flight to San Diego from Spain. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Spain to San Diego right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Spain to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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