@Juliet ******

others may prefer to say they are coming from "Dubai/Doha/Delhi' despite coming from UK and that might be accepted too, but I've chosen my departure as the country I'm departing from on my ticket.

@Richard ****

that's not what the TDAC site says. It says country you are departing from ie where you are coming from. . Anyway, bear in mind if you put a transit airport as a country you've come from, there could be implications if it's on the yellow fever list. I've followed the TDAC advice and put the country I'm coming from, where I board my flight as per my ticket reference, as UK. The flight number is only for the plane you got off. My TDAC has been accepted and received the QR code in seconds. 😊

@Thaimer *****

I have followed the TDAC info/advice. You do as you wish.

@Thaimer *****

I have already done my TDAC. Country I start my journey and board for my flight to Phuket is UK. I won't be entering any other country as transit is airside. That has been accepted. The flight number is for the flight I get off, on my arrival. Took 8 minutes. Received the form with the QR code instantly as soon as I clicked submit, and printed it.

@Thaimer *****

that's not on the TDAC question and answer info. They say the country you embark on your journey i.e the country you are coming from. I'm not putting that my journey starts in Delhi when I've not been in the country. My flight originated in UK, so that's my departure point.

It's on the website. You do it online up to 3 days before landing. Wherever you are. Even in the airport on arrival before immigration, but that'll delay your entry.

It's on the Q&A for the TDAC. You're departing UK airport, put that. The flight number is the last plane you were on.

@Damo **********

go by the TDAC help page that says departing country where you first board. That's the country you're coming from.

Someone already posted that the Q&A on the TDAC says best to put departure country airport (like UK) not the transit one, but the flight number is the one for the plane you get off.

@Stuart ***********

it clearly says up to 3 days before you land. Nowhere does it say you can do it before that.