This is the fifteenth 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.

Let me clear up one of the most common types of questions I get from beginners.

There is no transitive property of miles.

Just because Airline A partners with Airline B and Airline B partners with Airline C does NOT mean Airlines A and C are partners.

For instance, in yesterday's post Fully Flat Business Class to Europe for 25,000 Miles, I wrote:
I searched award space on Aer Lingus' routes from Chicago, Boston, and New York to Dublin for one passenger next April through July.

I searched on united.com.

Loyal reader Drew sent along an amazing targeted offer he received to continue spending on his US Airways® Premier World MasterCard®.

If he spends $500 per month on his card in August, September, and October, he'll get 15,000 bonus miles!

That means for a total of $1,500 in spending, he will earn 16,500 miles, which is 11 US Airways miles per dollar!

The email came to Drew with the subject "Earn 15,000 miles with your card!" Check your email for a similar offer if you have a US Airways® Premier World MasterCard®.

Most of us

Generous email subscriber Donn donated a pair of United Club passes that expire October 31, 2015 to one MileValue reader.

Here are the United Club locations to check whether you’ll be able to use a pass on your next trip.

If you can use the passes by October 31, 2015, there are two ways to enter to win them!

Comment on this post.

A few days ago, LifeMiles joined United and Delta in announcing an award chart devaluation, which will take place on October 15, 2014.

Bookings made until October 14, for travel until mid-2015 will cost the current mileage prices.

This is the fourteenth 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.

Singapore Airlines' award chart has some phenomenal sweet spots, which I've covered extensively:

United States to Central America with free one ways to Hawaii
United States to South America with free one ways to Hawaii
Continental United States to Hawaii

Yesterday I published comparison tables of United's award chart for United flights versus Singapore's award chart for United flights.

While compiling those charts, I saw that Singapore has an incredible sweet spot from the United States to the Middle East.

This is the thirteenth 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.

Skip this 1 vs 1 comparison and see this post that compares eight Star Alliance award charts side by side.

I've created comparison charts of how many mile a certain award costs with United MileagePlus miles versus the same award with Singapore KrisFlyer miles. Why?

Singapore Airlines miles can be used to book all the same Saver award space that United releases to its non-elite members without any fuel surcharges. That makes it a relevant comparison.
For many routes, the Singapore KrisFlyer program charges fewer miles to book a United flight than United charges to book the same flight.

There is excellent award space in Japan Airlines First Class between San Francisco and Tokyo for most of the next 11 months.