worst affected cities and flight routes? , ., ., , routes? this has been a really frustrating routes? this has been a really frustrating holiday routes? this has been a really frustrating holiday travel - routes? this has been a really l frustrating holiday travel season all around. frustrating holiday travel season allaround. right frustrating holiday travel season all around. right now we have storms in the midwest, so our hubs of chicago and denver are really hit hard, and atalanta, one of the busiest airports in the world, has also been hit. as you mention, there are more than 4000 cancellations worldwide, and roughly 2400 of those are here in the us. and this has just been going on since christmas eve. i think in total more than 12,000 flights have been cancelled since this started on christmas eve. and what are the airlines doing to try to help? try to help? airlines are doing their best try to help? airlines are doing their best to try to help? airlines are doing their