Originally Posted by
geilux
08:55 AM flight to HKG and it is on a weekday.
We are a party of three (with little geilux 7Y old) so not as fast as a solo businessman

There are some through trains from Keikyu Kawasaki to HND international terminal which do not involve a change in Keikyu Kamata.
On a weekday in March:
Keikyu Kawasaki - Haneda International Terminal
(direct unless otherwise stated)
07:01 - 07:18 (change at Keikyu Kamata)
07:02 - 07:18
07:04 - 07:26 (change at Keikyu Kamata)
07:09 - 07:26 (change at Keikyu Kamata)
07:12 - 07:29
The fare is 360 yen.