The New US Airways Share Miles Promotion is 100% Different

US Airways has announced a new Share Miles promotion through June 30, 2014.

US Airways Share Miles promotions are routinely my favorite way to buy US Airways miles for myself.

LifeMiles Set to Increase in Price by 10%

Avianca LifeMiles sell for 3 cents each, but frequent 100% bonuses on purchasing miles have made the effective cost 1.5 cents each for most of us.

LifeMiles have a number of strategic uses like Lufthansa First Class between the United States and Europe for 72,500 miles (instead of 110,000 United miles) or hidden city tickets that get you from the United States to Japan for 12,500 miles.

LifeMiles are valuable enough that I've suggested converting Arrival miles to LifeMiles.

US Airways Random Buy Miles Promo, Up to 100% Bonus

Per the email I received last week, US Airways is again offering up to a 100% bonus on purchased or gifted miles. This "Mystery Bonus" promotion is a slight variant from previous iterations, as the bonus you receive varies by individual frequent flyer account. You might receive a 25%, 50%, 75%, or 100% bonus on purchased and gifted miles.

US Airways frequently runs promotions offering bonuses to buy its miles, including one in December of last year. The deal is hardly a new proposition, especially if you receive an inferior 25%-75% offer like I did.

Two Stackable Promotions Mean American Airlines Miles for 1.98 Cents

American Airlines is offering two stackable promotions for buying AAdvantage miles that allow miles to be purchased for as little as 1.98 cents:

Get up to a 30% bonus on the miles you purchase until February 28, 2014.
Get a 10% discount on the price of miles until tomorrow February 6, 2014.

How do these promotions stack? How do these promotions compare to previous Buy Miles sales? Is this a price at which you should speculatively buy American Airlines miles?

The miles bonus is tiered.

Buy Frontier Miles Until 1/14/14 With 50% Bonus Means $363 Roundtrip Within the US Including Alaska

Until January 14, 2014, you can buy Frontier EarlyReturns miles from points.com with up to a 50% bonus on the miles you buy.

Lufthansa Selling Miles with 20% Bonus = 2.69 Cent Miles

The 50k mile bonus offer is back on the Lufthansa card mentioned in this post until 6/30/14.

Up to 15,000 Bonus American Airlines Miles When You Buy 50,000

I just got this email, advertising up to 15,000 bonus AAdvantage miles when you purchase American Airlines miles before November 15, 2013.

There have been some incredible deals to buy miles in the last few weeks like the US Airways offer to "buy" miles for 1.13 cents each.

How does this deal compare? Is this a good deal for folks trying to amass American Airlines miles?