HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$246+ Cheap flights from San Diego (SAN) to Barcelona

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BCN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Barcelona with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Diego to Barcelona are usually found in November or January, booked 4 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from San Diego to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$575
(Air Canada)

One-way from

$246
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$737
From San Diego to Barcelona
Search Deals
One-way flight from San Diego to Barcelona
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from San Diego to Barcelona

Cheapest flights from San Diego to Barcelona
Explore the most affordable flight options available from San Diego to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/285:35 pmSAN - BCN
1 stop20h 30mLufthansa
Tue 12/97:30 amBCN - SAN
1 stop17h 15mLufthansa
Deal found 9/15$575
This KLM deal was found by Cheapflights users on 9/16. 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 10/42:00 pmSAN - BCN
1 stop32h 15mKLM
Mon 10/201:20 pmBCN - SAN
1 stop31h 40mKLM
Deal found 9/16$576
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/710:30 pmSAN - BCN
1 stop29h 40mUnited Airlines
Fri 11/213:05 pmBCN - SAN
1 stop36h 47mUnited Airlines
Deal found 9/16$578
This Delta deal was found by Cheapflights users on 9/16. 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 11/221:10 pmSAN - BCN
1 stop33h 50mDelta
Tue 12/26:00 amBCN - SAN
2 stops23h 41mDelta
Deal found 9/16$581
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/276:15 amSAN - BCN
2 stops18h 20mUnited Airlines
Thu 12/1110:30 amBCN - SAN
1 stop19h 03mUnited Airlines
Deal found 9/15$583
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:10 pmSAN - BCN
2 stops30h 25mAir Canada
Tue 12/99:55 amBCN - SAN
2 stops34h 33mAir Canada
Deal found 9/15$584
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/255:01 pmSAN - BCN
2 stops31h 34mUnited Airlines
Sun 11/91:35 pmBCN - SAN
2 stops39h 17mUnited Airlines
Deal found 9/16$585
This Finnair deal was found by Cheapflights users on 9/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2810:35 pmSAN - BCN
1 stop23h 30mMultiple Airlines
Tue 12/912:30 pmBCN - SAN
2 stops28h 58mMultiple Airlines
Deal found 9/16$587
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/298:00 amSAN - BCN
2 stops17h 00mUnited Airlines
Wed 11/51:35 pmBCN - SAN
2 stops18h 14mUnited Airlines
Deal found 9/17$588
This Finnair deal was found by Cheapflights users on 9/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:32 amSAN - BCN
2 stops16h 28mMultiple Airlines
Fri 11/1412:30 pmBCN - SAN
1 stop18h 14mMultiple Airlines
Deal found 9/17$589
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/46:00 pmSAN - BCN
3 stops28h 50mUnited Airlines
Mon 10/208:00 amBCN - SAN
2 stops21h 19mUnited Airlines
Deal found 9/16$592

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Barcelona 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 September 17, 2025.
Use the filters below to find and compare flights from San Diego to Barcelona that are best for you.

Fly from

San Diego

Fly to

Barcelona

Route

Depart

Return

Price

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Sun 2/22

10:42 pm-9:35 am

2 stops25h 53m

Barcelona-El Prat

Sun 3/8

10:30 am-7:33 pm

1 stop18h 03m

$575

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Sat 10/4

2:00 pm-7:15 am

1 stop32h 15m

Barcelona-El Prat

Mon 10/20

1:20 pm-12:00 pm

1 stop31h 40m

$576

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Fri 11/7

6:47 pm-1:10 pm

2 stops33h 23m

Barcelona-El Prat

Fri 11/21

3:05 pm-6:52 pm

1 stop36h 47m

$578

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Mon 10/13

6:25 am-11:15 am

2 stops19h 50m

Barcelona-El Prat

Tue 11/11

6:00 am-8:58 pm

2 stops23h 58m

$579

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Fri 11/28

7:00 am-8:00 am

1 stop16h 00m

Barcelona-El Prat

Tue 12/9

10:15 am-11:53 pm

1 stop22h 38m

$583

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Fri 11/28

6:30 am-9:00 am

1 stop17h 30m

Barcelona-El Prat

Tue 12/9

12:30 pm-9:44 pm

1 stop18h 14m

$583

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Sat 10/18

1:01 pm-4:45 pm

1 stop18h 44m

$246

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Wed 10/15

2:11 pm-1:30 am

3 stops50h 19m

$288

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Mon 10/6

6:49 pm-7:45 pm

3 stops39h 56m

$294

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Thu 10/30

5:49 pm-8:20 pm

2 stops42h 31m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 14 results
1
2

Best time to book a flight from San Diego to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from San Diego 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 San Diego to Barcelona

How far ahead should I book a flight from San Diego to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Barcelona. Price data was last updated on September 12, 2025.

Booking 4 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Barcelona. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Diego to Barcelona (average of $523). Flying from San Diego to Barcelona in June is currently the most expensive (average of $1,061). 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 SAN to BCN?

Find hourly flight availability from San Diego to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from San Diego to Barcelona, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 10% versus a flight in the morning.

What is the cheapest day to fly from San Diego to Barcelona?

Use this chart to determine the cheapest time to fly round-trip from San Diego to Barcelona. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Diego to Barcelona flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from San Diego to Barcelona?

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from San Diego to Barcelona, such as United Airlines, American Airlines, and Iberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,925 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,409 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,367 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from San Diego to Barcelona. 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 from for flights from San Diego to Barcelona?

    Located just 2.6 mi from the city center, San Diego is the airport most travelers will use when flying to Barcelona from San Diego. Booking flights from San Diego (SAN) to Barcelona should be relatively easy as there are 0 daily outbound flights to Barcelona from 8 different airlines.

  • How long is the flight from San Diego to Barcelona?

    A quick flight from San Diego to Barcelona can take about 25h 53m. United Airlines provides one of the quickest options available for as low as $575. The distance from San Diego to Barcelona is about 6025 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Diego to Barcelona round-trip?

    Cheapflights users have booked flights from San Diego to Barcelona round-trip from $513. Other airlines that can offer you cheap pricing are Air Canada, from $528, and Delta, from $540. You may be able to fly from San Diego to Barcelona for 42% less than the average price by searching for these airlines.

  • Where are the most common layover locations when flying from San Diego to Barcelona?

    The most popular layover on flights from San Diego to Barcelona is London. London is followed by Chicago in terms of the most popular layover location on flights from San Diego to Barcelona.

  • What are some popular things to do or see while on a layover in London?

    The majority of London visitors spend their time at Hyde Park, Buckingham Palace, and Piccadilly Circus. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Those landing in London looking to spend some time exploring during their layover can rent a car for about $40 per day.

  • What are some popular points of interest to see during a layover in Chicago?

    Magnificent Mile, River North, and Grant Park are currently the most popular points of interest in Chicago at the moment. Magnificent Mile, River North, and Grant Park are located about 15.5 mi, 15.0 mi, and 16.2 mi, respectively from Chicago O'Hare Intl. Travelers in need of a car in Chicago can rent one for about $48 per day.

  • Where are the least popular layover locations for San Diego to Barcelona flights?

    Flights departing from San Diego and landing in Barcelona layover in Munich least frequently. Philadelphia sees the second fewest layovers for non-direct flights flying from San Diego to Barcelona.

  • Can I find deals for flights from San Diego to Barcelona that include hotel bookings?

    Yes. In addition to deals on San Diego to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Barcelona.

  • Can I find deals for business class flights from San Diego to Barcelona?

    Yes. Cheapflights offers flight deals from San Diego to Barcelona 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 San Diego to Barcelona?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Barcelona (average of $523). Flying from San Diego to Barcelona in June is currently the most expensive (average of $1,061). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Barcelona-El Prat flights
Los Angeles to Barcelona-El Prat flights
Santa Ana to Barcelona-El Prat flights
Ontario to Barcelona-El Prat flights
San Jose to Barcelona-El Prat flights
San Diego to Barcelona-El Prat flights
Oakland to Barcelona-El Prat flights
Las Vegas to Barcelona-El Prat flights
Sacramento to Barcelona-El Prat flights
Burbank to Barcelona-El Prat flights
Santa Barbara to Barcelona-El Prat flights
Reno to Barcelona-El Prat flights
Fresno to Barcelona-El Prat flights
Long Beach to Barcelona-El Prat flights
Palm Springs to Barcelona-El Prat flights
Monterey to Barcelona-El Prat flights
San Luis Obispo to Barcelona-El Prat flights
San Francisco to Costa Brava flights
Medford to Barcelona-El Prat flights
San Francisco to Lleida flights
San Francisco to Reus flights
Los Angeles to Reus flights
Los Angeles to Costa Brava flights
Las Vegas to Costa Brava flights

Top 8 airlines flying from San Diego to Barcelona

Discover the top 8 airlines that operate flights from San Diego to Barcelona. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$513Average$794FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$528Average$784FlexibilityNo cancel feeOn-time67%
DeltaCheapest$540Average$855FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$546Average$896FlexibilityNo cancel feeOn-time71%
IberiaCheapest$573Average$946FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$579Average$854FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$581Average$887FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$601Average$929FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.