What is the cheapest airline that flies from San Antonio to Barcelona?

United Airlines, Delta, and Air Canada are the most popular carriers operating from San Antonio to Barcelona

What airlines fly to Barcelona?

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Barcelona from San Antonio according to our data. British Airways is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Barcelona. Keep in mind that there are 9 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from San Antonio Airport to Barcelona?

Prices for flights from San Antonio Airport to Barcelona are refreshed on a daily basis.

How many operators does momondo search for flights from San Antonio Airport to Barcelona?

As of November 2025, there are 7 operators available to choose from for flights from San Antonio Airport to Barcelona.

How old do you have to be to fly from San Antonio Airport to Barcelona?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Barcelona.

What documentation or ID do you need to fly to Barcelona?

The travel and health documents you'll need for your trip to Barcelona may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Barcelona. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$417 Cheap Flights from San Antonio to Barcelona in 2025/26

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Find the cheapest flights from San Antonio to Barcelona

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 pm - 8:00 amSAT-BCN

12h 50m1 stop

10:15 am - 11:07 pmBCN-SAT

19h 52m2 stops

$417Virgin Atlantic

Find Deal

Mon, Dec 8 - Wed, Dec 24

12:10 pm - 8:00 amSAT-BCN

12h 50m1 stop

10:55 am - 11:07 pmBCN-SAT

19h 12m1 stop

$421Virgin Atlantic

Find Deal

Mon, Dec 8 - Wed, Dec 24

12:10 pm - 8:00 amSAT-BCN

12h 50m1 stop

10:55 am - 6:53 pmBCN-SAT

14h 58m1 stop

$425Delta

Find Deal

Mon, Dec 8 - Wed, Dec 24

12:55 pm - 8:00 amSAT-BCN

12h 05m1 stop

10:55 am - 10:30 pmBCN-SAT

18h 35m1 stop

$434KLM

Find Deal

Wed, Feb 11 - Thu, Feb 26

6:30 am - 8:00 amSAT-BCN

18h 30m2 stops

10:15 am - 12:36 amBCN-SAT

21h 21m2 stops

$438Virgin Atlantic

Find Deal

Wed, Feb 11 - Thu, Feb 26

6:30 am - 8:00 amSAT-BCN

18h 30m2 stops

12:15 pm - 11:07 pmBCN-SAT

17h 52m2 stops

$452Delta

Find Deal

Mon, Dec 8 - Wed, Dec 24

12:10 pm - 8:00 amSAT-BCN

12h 50m1 stop

10:55 am - 11:07 pmBCN-SAT

19h 12m1 stop

$459KLM

Find Deal

Thu, Dec 11 - Wed, Dec 24

12:55 pm - 8:00 amSAT-BCN

12h 05m1 stop

12:15 pm - 10:57 pmBCN-SAT

17h 42m2 stops

$461Multiple Airlines

Find Deal

Wed, Feb 11 - Tue, Feb 17

12:10 pm - 8:00 amSAT-BCN

12h 50m1 stop

9:30 am - 9:53 pmBCN-SAT

19h 23m2 stops

$463Delta

Find Deal

Thu, Dec 11 - Wed, Dec 24

6:30 am - 8:00 amSAT-BCN

18h 30m2 stops

6:00 am - 12:36 amBCN-SAT

25h 36m2 stops

$465Delta

Find Deal

Wed, Feb 11 - Tue, Feb 17

KLM flights from San Antonio to Barcelona

Our best KLM deals on San Antonio to Barcelona flight tickets

KLM

Dec 11

SAT12:10 pmSan Antonio

12h 50m

1 stop

BCN8:00 amBarcelona-El Prat

Dec 24

BCN9:30 amBarcelona-El Prat

16h 23m

1 stop

SAT6:53 pmSan Antonio

$459

Find similar

KLM

Nov 18

SAT1:05 pmSan Antonio

12h 35m

1 stop

BCN8:40 amBarcelona-El Prat

Nov 24

BCN10:55 amBarcelona-El Prat

16h 26m

1 stop

SAT8:21 pmSan Antonio

$476

Find similar

KLM

Nov 18

SAT8:00 amSan Antonio

17h 40m

1 stop

BCN8:40 amBarcelona-El Prat

Nov 24

BCN10:55 amBarcelona-El Prat

20h 43m

1 stop

SAT12:38 amSan Antonio

$478

Find similar

United Airlines flights from San Antonio to Barcelona

Our best United Airlines deals on San Antonio to Barcelona flight tickets

United Airlines

Apr 7

SAT12:08 pmSan Antonio

13h 12m

1 stop

BCN8:20 amBarcelona-El Prat

Apr 14

BCN1:15 pmBarcelona-El Prat

34h 23m

2 stops

SAT4:38 pmSan Antonio

$726

Find similar

United Airlines

Mar 12

SAT7:30 amSan Antonio

18h 50m

1 stop

BCN8:20 amBarcelona-El Prat

Mar 19

BCN10:30 amBarcelona-El Prat

15h 42m

1 stop

SAT8:12 pmSan Antonio

$733

Find similar

United Airlines

Mar 12

SAT7:30 amSan Antonio

18h 50m

1 stop

BCN8:20 amBarcelona-El Prat

Mar 19

BCN6:50 amBarcelona-El Prat

22h 22m

2 stops

SAT11:12 pmSan Antonio

$735

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Mon 12/8

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Wed 12/24

10:15 am-11:07 pm

2 stops19h 52m

$417

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Mon 12/8

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Wed 12/24

10:55 am-11:07 pm

1 stop19h 12m

$421

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Mon 12/8

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Wed 12/24

10:55 am-6:53 pm

1 stop14h 58m

$425

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Wed 2/11

12:55 pm-8:00 am

1 stop12h 05m

Barcelona-El Prat

Thu 2/26

10:55 am-10:30 pm

1 stop18h 35m

$434

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Wed 2/11

6:30 am-8:00 am

2 stops18h 30m

Barcelona-El Prat

Thu 2/26

10:15 am-12:36 am

2 stops21h 21m

$438

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Mon 12/8

6:30 am-8:00 am

2 stops18h 30m

Barcelona-El Prat

Wed 12/24

12:15 pm-11:07 pm

2 stops17h 52m

$452

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Thu 12/11

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Wed 12/24

10:55 am-11:07 pm

1 stop19h 12m

$459

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Wed 2/11

12:55 pm-8:00 am

1 stop12h 05m

Barcelona-El Prat

Tue 2/17

12:15 pm-10:57 pm

2 stops17h 42m

$461

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Thu 12/11

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Wed 12/24

9:30 am-9:53 pm

2 stops19h 23m

$463

San AntonioBarcelona

SAT - BCN

SATBCN

San Antonio

Wed 2/11

6:30 am-8:00 am

2 stops18h 30m

Barcelona-El Prat

Tue 2/17

6:00 am-12:36 am

2 stops25h 36m

$465

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Antonio to Barcelona

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

Prices

Airlines

What is the cheapest month to fly to Barcelona?

The month of January is, on average, the cheapest month to fly to Barcelona from San Antonio, with most prices found around $580. If you don’t want to visit Barcelona in January, then you should wait until November to fly from San Antonio, when ticket prices are also cheap, with an average price of $658.

What is the cheapest day to depart on your flight to Barcelona?

The cheapest day to depart from San Antonio to Barcelona is on a Tuesday when prices can be found for as low as $778. On the other hand, Friday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,171.

What is the cheapest time of day to depart on your flight to Barcelona?

In the evening is the cheapest time of day to fly from San Antonio to Barcelona when you can find flight prices for as low as $816. Flying to Barcelona in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,000 on average. Flights to Barcelona from San Antonio at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Barcelona?

You are more likely to see cheaper flights to Barcelona from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around $926 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from San Antonio for as low as $749 on momondo.

Cheap San Antonio to Barcelona flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Barcelona

Direct flights	None

There are no direct flights from San Antonio to Barcelona. There are no popular flight routes from San Antonio to Barcelona.

Search flight deals

How far is San Antonio to Barcelona by plane?
There are 5402.3 mi between San Antonio and Barcelona. By plane, this route typically takes 12h 05m.
When did momondo last update prices for flights from San Antonio Airport to Barcelona?
Prices for flights from San Antonio Airport to Barcelona are refreshed on a daily basis.
How many operators does momondo search for flights from San Antonio Airport to Barcelona?
As of November 2025, there are 7 operators available to choose from for flights from San Antonio Airport to Barcelona.
How old do you have to be to fly from San Antonio Airport to Barcelona?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Barcelona.
What documentation or ID do you need to fly to Barcelona?
The travel and health documents you'll need for your trip to Barcelona may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Barcelona. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from San Antonio to Barcelona

Compare and see reviews for airlines that fly from San Antonio to Barcelona with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $460	Free Cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $473	Free Cancellation	Rating 7.5 673 reviews	Search Virgin Atlantic flights
KLM	PriceFrom $493	Free Cancellation	Rating 7.7 1,410 reviews	Search KLM flights
Delta	PriceFrom $582	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Iberia	PriceFrom $622	Free Cancellation	Rating 7.0 3,010 reviews	Search Iberia flights
American Airlines	PriceFrom $637	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
British Airways	PriceFrom $755	Free Cancellation	Rating 6.7 7,516 reviews	Search British Airways flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Barcelona. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Barcelona from San Antonio on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for San Antonio to Barcelona flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Barcelona from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.