It's easy to make a free booking you can cancel on a site like booking.com. Just make sure you cancel before the deadline.

But do you need a visa? Or had you better bite the bullet and change that onward flight from Beijing instead?

Forget flight aware and fight radar for the moment. Yesterday the flight arrived 2:14am according to the airport site. Today it was 1:35am.

Face reality: your chance of making that 3:30am flight is very poor.