Barcelona has a well-connected public transportation system, including buses, metro, and trains. Consider getting a T10 transport card for 10 rides at a discounted price. Taxis and ride-sharing services are also available, but can be more expensive.
The estimated travel time from the airport to the city center is around 30-40 minutes by taxi or public transportation. Expect to pay €20-€40 for a taxi and €4.60 for a single metro ticket.
If you have more time, consider visiting the Gothic Quarter, Picasso Museum, or Camp Nou Stadium. If you have less time, prioritize your must-see attractions and skip the ones that are not as important to you.
Be mindful of pickpocketing in crowded areas and avoid tourist traps that charge high prices for mediocre food or souvenirs.