ZERO wifi on long haul routes. And they have SO FEW 737-8 and A-321 Neo that you won't really find them on any flights easily. In fact, these are the WORST planes because you can always take a massive twin aisle plane within Asia.....the last thing I want tis to be on a tiny 737-8 lol (like I am this week flying to Osaka, when in the past they used to fly 747s!)
I flew A333, 747-8, 777, 787 recently over the past few months- ZERO WIFI.
https://www.koreanair.com/au/en/in-f...koreanair-wifi