By Roger Collis [Q.] Planning a trip to Hanoi, my fiancee and I decided that it was worth paying a premium for direct flights with Air France rather than saving money by flying via Bangkok, or somewhere in Europe.

By Roger Collis [Q.] Can I switch my British Airways miles to the Lufthansa Miles & More program? I saw that swapping of loyalty program awards is done on a site called Points.com. Muhammad Abuzaid, Cairo [A.] The short answer is no.

By Roger Collis [Q.]British Airways has a policy of two carry-on bags, a regulation-size bag plus a briefcase or handbag, on flights from the United States terminating in Britain. But for flights continuing from Britain the policy is strictly one carry-on, including briefcases and handbags.

By Roger Collis [Q.]My daughter flew Air Canada from Tel Aviv to Ottawa, changing planes in Toronto. As there was a four-hour delay, she was told that she would be put up overnight at a hotel in Toronto at Air Canada's expense.

By Roger Collis [Q.]You have often mentioned Bangkok as a good place to buy airline tickets. Can you suggest some good Web sites? Butch Roa, Manila * [A.]Bangkok offers some of the best travel bargains in the world.