Originally Posted by
CPH-Flyer
Unless you have connecting flight where you can get the boarding pass at check-in there, you will indeed need to wait until the JAL counters open 3 hours before departure.
If you are travelling carry-on only, you might be able to use a boarding pass from online check in, though I have not tried if it is actually possible to get a boarding pass at OLCI for JFK departures
I was always able to obtain an OLCI boarding pass, but at T1 the security people said I must obtain a hard copy of the bp from the counter. Unsure if it's a T1 thing or a JL thing tho.