Narita's curfew is between 2300 to 0600 the next day.
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Snoopy:
An addition:
The only strange op that I can see is that ANA flight 1 from IAD to NRT has been diverted to Haneda. This is probably for curfew reasons as it was delayed leaving IAD and is due to arrive here at about 1 am. NRT has curfew, whereas HND doesn't.
[This message has been edited by Snoopy (edited 05-03-2003).]</font>
Probably the low demand cause the cancellation. But this may be unlikely due to the "Golden Week" holiday in Japan.