I see the train station is just in the airport, cool, but why is it impossible to buy tickets for most trains? I tried multiple times since my order (months ago) using bahn.de, thetrainline.com, omio.com and it's still unable to provide the simplest train tickets we want :'(. Source: 10 months ago

I found this option on a website called omio.com but not sure if it is reliable or not. Source: 12 months ago

I recommend omio.com and checking train prices in cp.pt and flixbus and https://rede-expressos.pt/en/ for bus prices. Within Lisbon you will have to see what works better depending on where the bus or train takes you. Source: about 1 year ago

I would advise checking separate official websites for more accurate information, but I think omio.com has both trains and buses in their system. Source: over 1 year ago

I was trying to book some tickets from Barcelona to Madrid for a family trip in April, but somehow at the checkout time, I always got this error, it's been a day. I don't know if this is some website problem or just me. Any idea? Btw, is there a legit and good third-party site I can buy train tickets in Spain? I heard of omio.com and is it good? Thanks a lot! Source: over 1 year ago

Nothing quite like this. The closest is airwander.com. Skipped lagged is the exact opposite. Source: about 3 years ago