Until April 13, 2014, US Airways is offering a bonus of 100% on sharing between 30,000 and 50,000 miles between Dividend Miles accounts.

The US Airways Share Miles promo is typically the best mileage purchasing offer of the year.

Sharing miles works out to buying miles for 1.13 cents each.

My absolute favorite awards are the ones I've booked for family and friends. Helping them fly for (nearly) free is a great pleasure that can't be replicated. Recently, my sister came to me asking for advice on the cheapest ways to fly from Boston to Paris this summer. She has zero miles and a tight budget.

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

Everyone knows that the Barclaycard Arrival PlusTM World Elite MasterCard® comes with a sign up bonus worth $400 in free travel after spending $3,000 in the first three months, and that the card earns 2% back toward travel on all purchases.

Except that those numbers are wrong! The card's sign up bonus is actually worth $430 and the card actually earns 2.15% back on all purchases.

Until we both got the card, we didn't realize that you actually earn miles on the purchase that you redeem miles to remove from your statement.

Update: Deal is dead. Hope you got in on it.

Today only, until 10 PM ET, Rocketmiles is offering its biggest bonus ever on hotel bookings: 5,000 bonus miles or points on any of its airline partners for stays that have a check out date before December 31, 2013.

This bonus is open to new and existing customers.

This bonus is large enough that on many Rocketmiles bookings made today, the miles earned will be worth almost as much as the price paid for the hotel room.

For those who don't know, Rocketmiles is a hotel booking site.

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?

Many of the credit card offers below have expired, so their links have been removed. Click here for the top current credit card sign up bonuses.

Yesterday I got an email with the subject line "Earn 3X American Airlines AAdvantage® Miles | Enroll in one click!"

By clicking the button inside the email, I enrolled myself for 3 American Airlines miles per dollar at department stores, restaurants, gas stations, and grocery stores through 12/31/13 on purchases made with my Citi AAdvantage card.

At our Award Booking Service, clients most often ask us to construct specific itineraries with their miles. Maybe they want to go to both France and Italy for their honeymoon and have United miles. We take it from there. Sometimes, however, we receive requests that are more like pleas:

"I have 250,000 Delta Skymiles, how can I put them to any use??"

I've often argued that Skymiles are strategically useful.

Note: This post may have a shorter shelf life due to the impending US Airways merger.

Our Award Booking Service receives numerous requests from clients trying to maximize the value of their miles. These savvy travelers want to fly in the best premium cabins and take advantage of any and all liberal routing rules available.

Luckily, many of our clients have large Dividend Miles balances.

Note: This post may have a shorter shelf life due to the impending US Airways merger.

Our Award Booking Service receives numerous requests from clients trying to maximize the value of their miles. These savvy travelers want to fly in the best premium cabins and take advantage of any and all liberal routing rules available.

Luckily, many of our clients have large Dividend Miles balances.