Super Reader Jorge sent me an awesome spreadsheet that instantly does all the math on British Airways' Cash & Avios awards, so you can quickly see whether booking one is a good deal.

Usually when redeeming British Airways Avios for an award ticket, you are offered a menu of prices. You can pay the normal amount of miles + taxes + fuel surcharges (though there are no fuel surcharges on these partners.) Or you can pay fewer Avios and more cash.

JB books awards for the MileValue Award Booking Service. He was an expert on the now-defunct American Airlines Explorer Awards and had been planning to book one for himself.

I have already written the ultimate guide to Cash & Avios redemptions.

The gist is that on some, but not all, British Airways Avios redemptions you are given a menu of prices like this:

You can spend the full price in Avios (plus government taxes and fuel surcharges on some partners) or you can pay fewer Avios and make up the difference by paying more cash directly to British Airways.

Not all awards offer Cash & Avios options--for instance American Airlines domestic flights don't--and the "price" of Avios varies widely on Cash &

On Monday, I wrote about US Airways and TAM joining the oneworld alliance. That meant that US Airways and TAM flights were now bookable with British Airways Avios, a founding member of oneworld.

In the renewed interest in searching ba.com for award flights, there were some hiccups that people noted in the comments. Often the best way to plan an Avios award is to search aa.com, and then when you find the award space you want, go to ba.com to book it.

AA.com and ba.com didn't seem to be matching up in the availability that you could book.

While other airlines search engines regress in functionality (looking in your direction, Delta), British Airways' award tool continues to improve. While researching for another article, I came across the slightly modified ba.com and noted a subtle consumer-friendly change.

Though the change is minor, British Airways has exhibited a recent history of positive improvements to their search tool.

You can currently buy Avios for 1.37 cents each through a miles-transfer promotion.

Did you miss 20k Miles (or Less) to All of South America All Year yesterday? That post is a competing trick with this one, and it might be an even better deal for you.

Chicago to Santiago "should" cost 30,000 American Airlines miles each way in economy.

I noticed in August 2012 that on my Avios award flight from Honolulu to Los Angeles, my boarding pass printed with "Priority AAccess," granting me priority security and priority boarding.

This (unintended?) benefit of British Airways Avios awards on American Airlines flights is still alive.

American Express Membership Rewards transfers to British Airways will come with an automatic 20% transfer bonus from now through December 31, 2013.

It's transfer bonus season with Membership Rewards.

Until October 15, you can convert 20,000 Starpoints to 31,125 Avios, a 56% transfer bonus.

Ordinarily 20,000 Starpoints transfer to 25,000 Avios, the same 5,000 mile bonus you get on every 20,000 Starpoints transferred to all 1:1 airline partners. Until October 15, British Airways is giving a 25% bonus on all incoming transfers of hotel points to Avios.