Q. We have reservations for Christmas week at the Halekulani resort in Honolulu but haven't booked our airfare yet. Fares seem pretty high. Is there a chance they'll go down? Hawaiian Airlines had a sale for holiday travel a couple of years ago but it only lasted 24 hours.

A. Coincidentally, I just flew from New York to Honolulu on the new Hawaiian Airlines nonstop, and they had an amazing short-lived sale for $340 round-trip including tax. (Fares on that route are typically $700 to $1,000 or more). I found out about it because I subscribe to the Hawaiian Airlines email alerts and also have their co-branded credit card.

Will fares go down? Probably. Allegiant Airlines is now flying to Hawaii, which will be downward pressure on fares, and Alaska Airlines has increased service. Fares to Hawaii fluctuate without notice and some of the best deals are unadvertised. Sign up for "airfare alerts" on your chosen route, and as you've discovered you need to pounce quickly when there's a sale.

And also, coincidentally, I stayed at the Halekulani for three nights during my trip. You'll be happy to know that the hotel looks better than ever after an extensive renovation. It's my favorite hotel on the islands.