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Cheap flights from Barcelona-El Prat Airport to San Diego from $418

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona-El Prat Airport to San Diego departing on 9/2. 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

Find the cheapest flights from Barcelona-El Prat Airport to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:45 pm - 12:54 pm
BCN
-
SAN
27h 09m
1 stop
Multiple Airlines Logo
7:00 am - 1:10 pm
SAN
-
BCN
21h 10m
1 stop
$685Multiple Airlines
Thu, Nov 12 - Tue, Nov 17
British Airways Logo
11:45 am - 5:50 pm
BCN
-
SAN
15h 05m
1 stop
British Airways Logo
7:40 pm - 7:40 pm
SAN
-
BCN
15h 00m
1 stop
$829British Airways
Sat, Sep 5 - Sat, Oct 3
Delta Logo
1:10 pm - 12:10 pm
BCN
-
SAN
32h 00m
1 stop
Delta Logo
7:00 am - 11:10 am
SAN
-
BCN
19h 10m
2 stops
$832Delta
Fri, Nov 6 - Sat, Nov 14
Delta Logo
1:10 pm - 12:10 pm
BCN
-
SAN
32h 00m
1 stop
Delta Logo
9:45 am - 2:00 pm
SAN
-
BCN
19h 15m
2 stops
$833Delta
Mon, Nov 9 - Tue, Nov 17
British Airways Logo
12:00 pm - 9:44 pm
BCN
-
SAN
18h 44m
1 stop
British Airways Logo
1:22 pm - 4:05 pm
SAN
-
BCN
17h 43m
2 stops
$834British Airways
Wed, Dec 2 - Thu, Dec 10
Delta Logo
1:10 pm - 12:10 pm
BCN
-
SAN
32h 00m
1 stop
Delta Logo
9:45 am - 2:00 pm
SAN
-
BCN
19h 15m
2 stops
$835Delta
Mon, Nov 9 - Tue, Nov 17
KLM Logo
1:10 pm - 12:10 pm
BCN
-
SAN
32h 00m
1 stop
KLM Logo
2:05 pm - 11:10 pm
SAN
-
BCN
24h 05m
1 stop
$836KLM
Fri, Nov 6 - Sat, Nov 14
British Airways Logo
10:45 am - 11:55 pm
BCN
-
SAN
22h 10m
1 stop
British Airways Logo
4:45 pm - 8:40 pm
SAN
-
BCN
18h 55m
1 stop
$837British Airways
Thu, Sep 24 - Mon, Sep 28
British Airways Logo
5:00 pm - 4:10 pm
BCN
-
SAN
32h 10m
1 stop
British Airways Logo
6:00 pm - 6:25 pm
SAN
-
BCN
15h 25m
1 stop
$838British Airways
Tue, Dec 1 - Thu, Dec 10
Multiple Airlines Logo
6:00 am - 12:10 pm
BCN
-
SAN
15h 10m
1 stop
Multiple Airlines Logo
3:59 pm - 5:00 pm
SAN
-
BCN
16h 01m
2 stops
$839Multiple Airlines
Thu, Nov 5 - Sun, Nov 15

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KLM flights from Barcelona-El Prat Airport to San Diego

Our best KLM deals on Barcelona-El Prat Airport to San Diego flight tickets
KLM
Nov 6
BCN1:10 pmBarcelona-El Prat
32h 00m
1 stop
SAN12:10 pmSan Diego
Nov 14
SAN2:05 pmSan Diego
24h 05m
1 stop
BCN11:10 pmBarcelona-El Prat
$836
KLM
Dec 3
BCN6:00 amBarcelona-El Prat
19h 06m
2 stops
SAN4:06 pmSan Diego
Dec 13
SAN8:00 amSan Diego
15h 40m
1 stop
BCN8:40 amBarcelona-El Prat
$841
KLM
Nov 5
BCN6:00 amBarcelona-El Prat
15h 10m
1 stop
SAN12:10 pmSan Diego
Nov 15
SAN8:00 amSan Diego
15h 40m
1 stop
BCN8:40 amBarcelona-El Prat
$843

United Airlines flights from Barcelona-El Prat Airport to San Diego

Our best United Airlines deals on Barcelona-El Prat Airport to San Diego flight tickets
United Airlines
Dec 4
BCN6:50 amBarcelona-El Prat
26h 39m
2 stops
SAN12:29 amSan Diego
Dec 10
SAN8:35 amSan Diego
15h 25m
1 stop
BCN9:00 amBarcelona-El Prat
$923
United Airlines
Sep 5
BCN6:40 amBarcelona-El Prat
23h 05m
3 stops
SAN8:45 pmSan Diego
Oct 3
SAN7:00 amSan Diego
16h 20m
2 stops
BCN8:20 amBarcelona-El Prat
$924
United Airlines
Jul 1
BCN6:40 amBarcelona-El Prat
22h 11m
2 stops
SAN7:51 pmSan Diego
Jul 5
SAN6:53 amSan Diego
21h 22m
1 stop
BCN1:15 pmBarcelona-El Prat
$1,274

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat Airport 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 June 19, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 11/12

6:45 pm-12:54 pm

1 stop27h 09m

San Diego

Tue 11/17

7:00 am-1:10 pm

1 stop21h 10m

$685
Quickest round-trip

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Sat 9/5

11:45 am-5:50 pm

1 stop15h 05m

San Diego

Sat 10/3

7:40 pm-7:40 pm

1 stop15h 00m

$829

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Fri 11/6

1:10 pm-12:10 pm

1 stop32h 00m

San Diego

Sat 11/14

7:00 am-11:10 am

2 stops19h 10m

$832

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 11/9

1:10 pm-12:10 pm

1 stop32h 00m

San Diego

Tue 11/17

9:45 am-2:00 pm

2 stops19h 15m

$833

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Wed 12/2

12:00 pm-9:44 pm

1 stop18h 44m

San Diego

Thu 12/10

1:22 pm-4:05 pm

2 stops17h 43m

$834

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Mon 11/9

1:10 pm-12:10 pm

1 stop32h 00m

San Diego

Tue 11/17

9:45 am-2:00 pm

2 stops19h 15m

$835

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Fri 11/6

1:10 pm-12:10 pm

1 stop32h 00m

San Diego

Sat 11/14

2:05 pm-11:10 pm

1 stop24h 05m

$836

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 9/24

10:45 am-11:55 pm

1 stop22h 10m

San Diego

Mon 9/28

4:45 pm-8:40 pm

1 stop18h 55m

$837

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Tue 12/1

5:00 pm-4:10 pm

1 stop32h 10m

San Diego

Thu 12/10

6:00 pm-6:25 pm

1 stop15h 25m

$838

BarcelonaSan Diego

BCN - SAN

BCNSAN

Barcelona-El Prat

Thu 11/5

6:00 am-12:10 pm

1 stop15h 10m

San Diego

Sun 11/15

3:59 pm-5:00 pm

2 stops16h 01m

$839

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 Barcelona-El Prat Airport 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 typical price of a round-trip flight between Barcelona-El Prat Airport and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of November, then departing from Barcelona-El Prat Airport during the month March is also very affordable. Most momondo users find prices during this month for around $812.

Can stopping save me money on Barcelona-El Prat Airport to San Diego flights?

You could potentially save up to 18% on your flight if you consider stops on a Barcelona-El Prat Airport to San Diego flight.

How have Barcelona-El Prat Airport to San Diego flight prices changed over time?

As of June 2026, prices for Barcelona-El Prat Airport to San Diego flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Barcelona-El Prat Airport to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Barcelona-El Prat Airport to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Barcelona-El Prat Airport to San Diego (BCN to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Barcelona-El Prat Airport to San Diego

Fastest flight time

21h 24m

Direct flights

None
The fastest flight from Barcelona-El Prat Airport to San Diego takes 21h 24m
There are no direct flights from Barcelona-El Prat Airport to San Diego. There are no popular flight routes from Barcelona-El Prat Airport to San Diego.
Search flight deals

Frequently asked questions about flying from Barcelona-El Prat Airport to San Diego

  • How far is Barcelona-El Prat to San Diego by plane?

    The distance between Barcelona-El Prat and San Diego is about 6024.5 mi. A reasonable flight in good conditions will take 21h 24m.

  • When did momondo last update prices for flights from Barcelona-El Prat Airport to San Diego Airport?

    Prices for flights from Barcelona-El Prat Airport to San Diego Airport were last updated today.

  • How old do you have to be to fly from Barcelona-El Prat Airport 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 Barcelona-El Prat Airport 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.

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
Julian
National City
Poway
La Mesa
San Ysidro
Borrego Springs
Imperial Beach
Lemon Grove
Santee
Alpine

Why use momondo?

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

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

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

All flight searches from Barcelona to San Diego on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

Yes. momondo can track prices for Barcelona 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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