Originally Posted by
Masterofpuppets
I've read that ICN is nearly maxed out at 107 movements an hour during peak hours so its not like DL can just add extra flights during these times.
That is likely true, as esp. recently (this year) there's been a number of occasions at ICN when a plane pulls back from gate and then sits for 20, 30, 40 minutes due to "airport congestion."