Q&A: Korean Air - Which Prestige seat on New York-Seoul?
What kind of Prestige Class seats are there on Korean Air 84, 85 NYC-Seoul?
We believe you may mean Korean Air flights 85 and 86, as there is no 84 serving that route.
If indeed this is what you mean, according to Korean Air, you'll be on a B747-400 fitted with it's Prestige Plus seat. This is the angled lie-flat, cradle-style offering, as opposed to the airline's newest fully-flat seat.
You can see more on this particular seat by visiting the Korean Air website:
The Korean Air website is an excellent resource. If you would like to see which products fly on other routes, or at other times, have a look at this: