Is it easy to transfer between the Pamukkale Express to the Eskisehir-Istanbul YHT? Pamukkale Express arrives in Eskisehir at 4.06 pm and the YHT departs for Istanbul at 4.22 pm.
The platforms are next to each other, where walking from one to another will take only 2-3 minutes.
However, there’s a security check before getting on YHT. Security check is fast, but there may be a queue.
Another risk is the delay of Pamukkale Express. A delay over 10 minutes will make it almost impossible to catch YHT. Delays in YHT trains, on the contrary, is not common.
I’d suggest buying ticket for the next YHT if possible, and enjoy Eskisehir for a few hours. Another option would be changing the ticket if you are late. If it’s because of delay of connected train, tickets can be changed at the departure station.