Q. I have been thinking of getting an airline credit card in order to earn miles, especially the bonus sign up miles, which are typically 20,000 or 25,000. Which credit card is best for this?

A. Right now, the absolute best offer is from British Airways’ Chase Visa. They’re offering 100,000 bonus miles (that’s not a typo), 50,000 upon your first purchase with the card, and another 50,000 if you spend $2,000 or more in the first three months. You also get 1.25 miles rather than the usual one for each dollar charged to the card, and if you spend $30,000 in a single calendar year you get a companion voucher good for any class of service. The annual fee is $75. Plus, should you usually only travel domestically, you can spend those miles on BA’s partner American Airlines or other partner airlines. Those 100,000 miles are good for two flights to Europe, assuming seats are available when you wish to travel, or for upgrades. You can apply for the card by visiting http://www.mychasecreditcards.com/britishairways/hp_postpin