Saver Economy award seats are wide open from the United States to Sao Paulo during the World Cup for only 30k miles per direction per person.

This is a marked change from four months ago when I wrote How to Get to the World Cup with Miles and Points.

US Airways and American Airlines officially merged in December 2013. They are still independent brands with separate loyalty programs, but they are making major changes in unison, especially in the last few weeks.

Below are 17 changes made, mostly yesterday, in the order of my take on their importance. As I said yesterday, I am much more upset about how these changes were made (most of numbers 3-17 were made with no notice) than the fact that they were made.

1) On March 30, US Airways left the Star Alliance.

United is offering 25% off Saver economy awards between the mainland United States and Japan for flights completed by April 30, 2014.

You can book flights to Japan for only 26,250 United miles each way this month only, and the price shows up automatically online. The normal price is 35,000 United miles each way.

Any discount is nice, but there are one or two drawbacks to consider.

On the US Airways award chart today, I noticed a minor change as part of the US Airways / American Airlines integration.

Did you catch it?

On the US Airways chart, the word "Envoy" has been replaced with "Business Class."

US Airways had previously referred to its International Business Class as "Envoy" (and it still does on other pages), but it looks like that name will disappear during the integration.

This is semantics, since the Envoy / Business Class will still be a great product--at least on the A330s where it is completely flat--but a far bigger change is coming

American Airlines has a far better award chart than rivals United and Delta, especially in premium cabins.

Unfortunately on many of its own internationally configured planes, American Airlines has angled lie flat seats in business class instead of fully flat beds.

Yesterday I wrote that The Best Value Flight Across the Atlantic Has Almost No Premium Award Space.

The best value flight between the United States and Europe is American Airlines' daily 777-300ER flight from Los Angeles to London.

The 10hr40min flight east features fully flat beds in Business Class for 50k American Airlines miles each way, and American's newest First Class product for 62,500 miles each way.

Considering that Delta now charges 125k miles for roundtrip business class awards to Europe and United charges 115-140k for a roundtrip business class award and 160k-220k for a roundtrip first class award to Europe, American's prices are a steal!

For a great hard product, and west-coast-to-Europe flights, you can't

We just got an interesting comment on Bill's great recent post about Booking Etihad Business Class Using American Miles.

MojoMama is trying to go from Los Angeles (LAX) to the Maldives (MLE) in First Class.

The United States to the Maldives should be 90k miles each way in First Class according to American Airlines' chart. But she's getting charged 115k miles:

Trying to book LAX-JFK(stopover)-AUH-MLE in first for August, but it’s pricing at 115,000 miles. Being told AUH-MLE is separate award because it’s not in the same region, which I know is false.

US Airways Premier World MasterCard with 40,000 bonus miles after first purchase to book these Star Alliance and oneworld partners

Earn 40,000 bonus miles after your first purchase and payment of the $89 annual fee*
First checked bag FREE on eligible bags for you and up to four companions on domestic US Airways operated flights
One companion certificate good for up to 2 guests to travel with you on a US Airways

A very generous reader who came to the MileValue Happy Hour in New York City this week is donating five (5) American Airlines Systemwide Upgrades that expire Friday February 28, 2014 to MileValue readers.

Follow generous Tom on twitter to show your appreciation.

An American Airlines Systemwide Upgrade entitles you to an upgrade of one class of service on all flights on a one way itinerary that are operated by American Airlines or American Eagle if upgrade space is available.

This giveaway has tremendous value to you if you have a trip booked that meets the following conditions:

paid itinerary