Air Miles seem like a great deal. But I'm not sure they really are. The problem is that you have to do a bit of research and some maths to really work out whether they are a good deal or not. Not an example of clear information! With a corporate discount, flying Upper Class London to LA with Virgin gets me 7,836 "Flying Co Miles" for £3,869 (£0.49 per Air Mile). You can't actually get a flight for the miles without paying taxes on that flight. And on some routes, taxes are a large part of the fare, so you don't actually get close to getting a free flight when you spend them - just a discount. Here are the routes I tried: I was looking for a trip to Havana, where my miles that cost £0.49 each were worth just £0.0088 each. Just under a penny. To save £440 on my flight, I was spending 50,000 miles, which cost my company £24,687. That's 1.8% of their money back. Not a great deal, considering the ticket cost! If I spent the miles on the first New York flight I found, the miles that cost £0.49 each would be worth only £0.0054 each (just over half a penny). To save £195 on the fare I looked at, I would spend 36,000 miles which cost my company £17,775 to earn. That's 1.1% of their money back.