Hello, this is an easy question, my family and I are traveling to Barcelona and we've been there before but I forgot if we could buy our tickets for the bus with our credit card. It's been 2 years since we last visited. I just want to see if I should get some euros before our trip. Thank you.
Get your euros at the airport.
I have never flown into Barcelona, but I've flown out of El Prat. When you're traveling from Placa Catalunya to the airport, there are ticket-vending machines right at the bus pick-up point. I'm nearly certain there was also an employee on the sidewalk, but I didn't pay attention to whether he was selling tickets. Bus departures are extremely frequent, so it would not be unreasonable to have such an arrangement.
You could just buy it online before at aerobusbcn.com
The private bus, which I believe you're thinking of, has a kiosk at the curb (see the portion 28 seconds into this video)
https://www.youtube.com/watch?v=kZlnxmfn040
I'm planning on getting the Barcelona Card at the airport, which covers free metro into the city and (mine will be) good for 72 hours of metro.
Thank you, the video was very helpful. I couldn't remember if we paid with cash or with our card the last time we were there. Thanks again.
The Aerobus accepts credit cards, of course.
Note: the Airport Metro is useless, as well as Hola BCN cards and touristic passes. Just use a T-10, it is simpler, easier, and more economical (Hola card doesn't cover night buses, T-10 it covers everything including the Airport but via Rodalies train or regular bus)