This is the twentieth post in a monthlong series that started here. Each post will take about two minutes to read and may include an action item that takes the reader another two minutes to complete. I am writing this for an audience of people who know nothing about frequent flyer miles, and my goal is that by the end, you know enough to fly for free anywhere you want to go.

I’ve covered how to earn miles and the redemption options for miles.

Part I Europe
Part II Asia
Part III Africa/Middle East
Part IV Australia/New Zealand
Part V Central/South America

Europe is an absolute award chart bargain compared to Aeroplan's mileage requirement for Asian travel. After Aeroplan's summer 2013 devaluation, its award chart for travel to Asia became very expensive relative to other carriers.

Sadly, United’s recent devaluation and Delta’s unprecedented double devaluation brought Air Canada Aeroplan miles in line with the likes of United and Delta.

There is currently gold mine business class award availability on US Airways flights from the US to southern Europe for this summer.

Award space on US Airways flights is especially advantageous because it means that you can book the space at favorable mileage rates (and no fuel surcharges) with:

US Airways miles
American Airlines miles
United miles (until March 30, 2014)
Ultimate Rewards (until March 30, 2014)
Membership Rewards (until March 30, 2014)

What are the routes? How good is the space? How good is US Airways Business Class?