$451 Cheap Flights from San Luis Potosi (SLP) to Barcelona (BCN)

View $451 flight on Tue, Jan 6, 2026Opens in a new window

Popular airlines from San Luis Potosi Intl. Airport (SLP) to Barcelona El Prat Airport (BCN)

Find available prices by choosing your travel dates.

Cheap Flights from San Luis Potosi to Barcelona (SLP-BCN)

Prices were available within the past 7 days and start at $451 for one-way flights and $954 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, May 20 - Mon, Jun 2
SLP
San Luis Potosi
BCN
Barcelona
$954 Roundtrip, found 3 days ago
$954
Roundtrip
found 3 days ago
Select United flight, departing Tue, May 20 from San Luis Potosi to Barcelona, returning Mon, Jun 2, priced at $954 found 3 days ago
United
Sun, May 25 - Wed, Jun 4
SLP
San Luis Potosi
BCN
Barcelona
$956 Roundtrip, found 3 days ago
$956
Roundtrip
found 3 days ago
Select United flight, departing Sun, May 25 from San Luis Potosi to Barcelona, returning Wed, Jun 4, priced at $956 found 3 days ago
Delta
Tue, Jun 3 - Mon, Jun 16
SLP
San Luis Potosi
BCN
Barcelona
$976 Roundtrip, found 3 days ago
$976
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jun 3 from San Luis Potosi to Barcelona, returning Mon, Jun 16, priced at $976 found 3 days ago
American Airlines
Sun, May 11 - Tue, May 27
SLP
San Luis Potosi
BCN
Barcelona
$987 Roundtrip, found 3 days ago
$987
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, May 11 from San Luis Potosi to Barcelona, returning Tue, May 27, priced at $987 found 3 days ago
United
Sat, May 24 - Mon, Jun 9
SLP
San Luis Potosi
BCN
Barcelona
$995 Roundtrip, found 3 days ago
$995
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 24 from San Luis Potosi to Barcelona, returning Mon, Jun 9, priced at $995 found 3 days ago
United
Sun, May 25 - Wed, Jun 4
SLP
San Luis Potosi
BCN
Barcelona
$997 Roundtrip, found 3 days ago
$997
Roundtrip
found 3 days ago
Select United flight, departing Sun, May 25 from San Luis Potosi to Barcelona, returning Wed, Jun 4, priced at $997 found 3 days ago
United
Sun, May 25 - Wed, Jun 4
SLP
San Luis Potosi
BCN
Barcelona
$999 Roundtrip, found 3 days ago
$999
Roundtrip
found 3 days ago
Select United flight, departing Sun, May 25 from San Luis Potosi to Barcelona, returning Wed, Jun 4, priced at $999 found 3 days ago
American Airlines
Mon, May 5 - Wed, May 21
SLP
San Luis Potosi
BCN
Barcelona
$1,000 Roundtrip, found 3 days ago
$1,000
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, May 5 from San Luis Potosi to Barcelona, returning Wed, May 21, priced at $1,000 found 3 days ago
Aeromexico
Sun, May 25 - Wed, Jun 4
SLP
San Luis Potosi
BCN
Barcelona
$1,330 Roundtrip, found 3 days ago
$1,330
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Sun, May 25 from San Luis Potosi to Barcelona, returning Wed, Jun 4, priced at $1,330 found 3 days ago
Air France
Tue, Jan 6 - Mon, Jan 12
SLP
San Luis Potosi
BCN
Barcelona
$1,525 Roundtrip, found 21 hours ago
$1,525
Roundtrip
found 21 hours ago
Select Air France flight, departing Tue, Jan 6 from San Luis Potosi to Barcelona, returning Mon, Jan 12, priced at $1,525 found 21 hours ago
Flights from San Luis Potosi (SLP) to Barcelona (BCN)
Origin airport
Ponciano Arriaga Intl.
Destination airport
Barcelona Intl.
Airlines serving
Aeromexico, Air France, American Airlines, Delta, KLM, United
Roundtrip price
$953
Distance
5847 mi

San Luis Potosi to Barcelona Flights

The cheapest times to fly from San Luis Potosi to Barcelona

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Luis Potosi to Barcelona are during the month of May. You can find some of the cheapest flights from San Luis Potosi to Barcelona with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Luis Potosi to Barcelona

Sunday is one of the best days to book for cheap flights from San Luis Potosi to Barcelona: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Luis Potosi to Barcelona

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Luis Potosi to Barcelona in 2025. You can also book with separate airlines for your outbound and return journeys, from $451 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Luis Potosi to Barcelona flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Luis Potosi to Barcelona airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Ponciano Arriaga Intl. Airport (SLP) to Barcelona Intl. Airport (BCN) cost?
Discover the latest flight deals from SLP to BCN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SLP to BCN?
The cheapest flights from SLP to BCN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SLP to BCN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SLP to BCN. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Ponciano Arriaga Intl. Airport (SLP) to Barcelona Intl. Airport (BCN)?
Nonstop flights from Ponciano Arriaga Intl. Airport (SLP) to Barcelona Intl. Airport (BCN) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your travel dates and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SLP to BCN?
Typically you’ll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ponciano Arriaga Intl. Airport (SLP) to Barcelona Intl. Airport (BCN)?
Book a flight from Ponciano Arriaga Intl. Airport (SLP) to Barcelona Intl. Airport (BCN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Ponciano Arriaga Intl. Airport (SLP) to Barcelona Intl. Airport (BCN) last-minute?
Holding off until just before your trip to book your flight from SLP to BCN generally means paying more. While you might find some last-minute discounts, there’s no guarantee. Be flexible with your travel plans to maximize your chances of scoring a bargain.
Is it cheaper to book a SLP to BCN flight and hotel package?
You can save money by booking a SLP to BCN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one place. After choosing your ideal accommodations and flights, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Ponciano Arriaga Intl. Airport (SLP) to Barcelona Intl. Airport (BCN)?
In most instances, you can reschedule or cancel your SLP to BCN flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline’s rules and fees on flight changes, or if you need further information, visit our Customer Service portal.

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*Available to One Key members.