Hi Tori,

It will be possible to upgrade your seat for more leg room, but this can only be done at check-in whilst you're at the airport.

If you have any more questions then please do not hesitate to email me.

Kind regards

Cheryl, your editor

Hi I would love to know if it is possible to upgrade my flight from heathrow to hong kong, for a little bit more leg room. Would u know the xtra flight charges. Also can u pay by switch. If so is there a charge thks.