Originally Posted by
bagold
I've done it before a few years back. I told them onboard and they got someone to meet me upon landing. Took me back to the departure area without having to go through immigration and back in.
That was a few years ago. Most recently, you will have to pay the departure tax if you're returning on the same aircraft. Airline under strict instructions to not let you have boarding pass until they see that you have paid tax.
If you fly in on one flight and out another, then you don't have to pay the tax. You may avoid the visa fee, but not the tax.
I did it on a LH turnaround from Singapore and LH told me about this.