Originally Posted by
gypsyardor
If I fly from USA to India via AI in Business class the size/weight restrictions for luggage are larger than domestic travel. But if I will be also flying domestically in the country, does that mean the business size/weight can't be used at all...and I need to switch to domestic restrictions for the entire trip? That's what I'm guessing, but wanted to know if there's some rule that says if I have an international business ticket as proof it would be allowed on domestic flights? Big hope there, but figured I'd ask. Thanks!
Not clear if by "flying domestically in the country" you mean a connection, or general travel around the country after arrival.
If you have separate tickets, then the allowances are different. But if it is an international flight + domestic connection on the same PNR, then you don't need to provide any "proof", their computer tells them (and the 'manage booking' web page will tell you) your bag allowance for each flight. It will be the international allowance for all flights.
Indeed, I have found that AI specified the international allowance for a domestic trip even when it was not a same-day connection, but rather I was staying in DEL for a few days before continuing on. This multi-segment trip was all on the same PNR. (Not that I needed that allowance---in the old days I would arrive with suitcases full of alcohol, chocolate and other phoren gifts, but these days most things are available in India and no one cares.)