Saw this notice which isn't the simplest rather like their needlessly complex web booking.
Not sure I'll ride SRT until they new C Rai line links to China probaly in 22nd century, but Sloppee or was it Laze Harder promise my James Bond jetpack will arrive by then, it's out for delivery .
Well don't stop your coupling or shoot the messenger.
If you want to know how it should be done
checkout CDG Amsterdam Schipol Wien Schwechat , Kastrup Kobenhavn or virtually any German city .
I regularly use those plus Narita F am main, Munchen and Dusseldorf
Nice clean fast Inter city trains right in the Airport. In Germany through ticketing sometimes though not as reliable as you may imagine, my Berliner express to Prague was cancelled with 30m notice and 2 hour wait for next in Dresden HBF last year and similar at Dortmund earlier.
The new Chinese trains in Laos are sleek but Zero grog and most stations miles from town and ticketing tricky for foreign cards, ticket collection according to a friend who came to me that route last month
Athough not to same level Gatwick, Manchester have long distance trains in the airport to places I like to Go like Cambridge and Chitty -on-Trent on the Crewe Riviera, means you can avoid Madchester and it's glum footy fans and "Tram Spotters"