Originally Posted by number_6
JL includes a hotel room at NRT in the price of an F or J ticket if JL does not operate a same-day connection for a particular route.
fyi, jl's policy is much better than that in practice. you don't need to be in f or j (even m-class is ok). as for the having to take a same-day flight if available, some agents will try to make you do an early departure and LONG layover in nrt whereas others will simply put you on the afternoon flight with a hotel voucher.