Originally Posted by
Himeno
The main issue with a 2300 HND arrival is that almost all public transport stops just after midnight, leaving only a handful of night buses.
If you hit any sort of delay with reaching the train or monorail stations ground side, you could very well be stuck with a very expensive taxi or sitting around for upwards of 2 or 3 hours for a bus going somewhere close to where you want to be.
The taxi fare from Haneda are not that bad. A bit depending on where you are going, but central Tokyo is capped and should set you back less than 10.000 yen. I pay about 7000 yen to get home with a taxi from Haneda. If your destination is Yokohama, you may be in for a significant charge.