Hello guys,

I have thought about one scenario and I just want to validate it with you. Suppose you book a flight with the intention to do possible throw away ticketing. For example, the odds of me taking the last return leg of the itinerary is 50%.

If that happens I am guessing it might be a good idea not to reveal myself to the airline through my frequent flyer identifier.

In such a case, could be a good idea to provide the number after all the flights have been taken?

Can you think of any other scenario when it's beneficial NOT to provide your frequent flyer number before the flight?