There have been a couple of posts recently about how to get free upgrades to Business Class. The first was entitled “The two words that will get you an airline upgrade over the phone“. The second was “Two words that will NOT guarantee flight upgrades”. I’ve only got one free upgrade to Business Class, and that was totally out of the blue. I presume the plane was full and we were selected because of our Frequent Flyer Miles. The other times I have upgraded, I’ve done it at the airport, before the flight, and I’ve paid for it. Sometimes you can buy an upgrade to Business Class quite cheaply.