I am looking at booking flights for December 2014 - January 2015 from Sydney (SYD) to Frankfurt (FRA). I have never booked international flights on my own before so I would appreciate some advise. One of the return flights I have looked into has quite long stop overs in Bangkok - One 13hrs 45 min and the other 22hrs 10 mins. My question is are you able to leave the airport during this time and if so what happens with your checked baggage. We are thinking of booking a hotel for both of the stopovers (we realise that the 13hr stop over wouldn't allow us much sleep but better than sleeping at the airport).The fights are with Lufthansa and Thai Airways.