TIPS FOR NEGOTIATING AN AIRLINE UPGRADE
The first tip may seem obvious, but many travelers forget that their frequent flyer miles give them points to leverage towards an upgrade. So the first rule is always join the airline’s frequent flyer program.
Second, ask, don’t demand. Be polite and say "Am I eligible for an upgrade today?" If the answer at check-in is negative, ask again at your departure gate. That’s when staff knows the flight’s passenger load and can often make last-minute seat changes.
Third, volunteer to get bumped to a later flight if yours looks oversold. Chances are you will leave only a few hours later, and it increases your chances for an upgrade, a travel voucher, or even a free flight.
Finally, when all else fails, be observant once you’ve boarded. If you see an empty seat in first class, ask your flight attendant if you can move. Don’t be shy, especially if you have a troublesome seatmate.
And remember to use charm. Grumpy passengers rarely get special favors
Matthew J. Bennett, an authority on air travel upgrades, offers a free report on many ways to work the airlines to your advantage at firstclassflyer.com. Another valuable source for frequent flyer tips is webflyer.com. Use its free e-newsletter MilesLink to get the latest airline deals and promotions.