Hilton is running numerous airline related bonuses until the end of March. You can find the other airlines from my February hotel promotions master thread. Today British Airways included the following offer with their Executive Club February update. You can also combine this offer with other Hilton points based promotions.
To participate, you must register at http://www.hiltonhhonors.com/aviosba. Offer is valid for eligible stays completed after registration, at participating hotels between January 1 2012 and March 31 2012. HHonors members choosing Fixed miles award will earn 750 Avios per stay, plus 1,500 bonus Avios per stay. HHonors members choosing Variable Miles award, will earn one Avios per one USD spent, plus two bonus Avios per one USD spent. Customers must be an HHonors member to earn bonus miles. For Hampton Inn, Homewood Suites and Home2 Suites under fixed miles award, 200 bonus Avios will be offered per stay. For Home2 Suites under variable miles award, up to 100 Avios will be offered per stay. Hilton HHonors members must have their earning preference set to ‘Points & Miles’ and must have British Airways as the preferred airline partner. Avios accrued and awards issued are subject to BA Exec Club Terms and Conditions. Hilton HHonors membership, earning of Points & Miles, and redemption of points are subject to HHonors Terms and Conditions. Cannot be used in conjunction with any other offer or promotion.
Not sure if Hilton has made a typo here. They are claiming to offer 750 Avios based points for fixed miles earners, but if you look at the earnings chart it is actually only 500 Avios points. I have requested clarification from Hilton for this. It seems to be clear, however, based on the Terms and conditions that the bonus amount is 1500 Avios points.
Please note that for Hampton, Homewood Suites and Home2 Suites the earnings structure is lower. The bonus is only 200 Avios per stay.
This offer is valid for variable miles/points collectors as well. Hilton will triple the number of Avios earned for all other brands than the Home2 Suites. You need to register for this offer prior to your stay and choose the British Airways as your fixed/variable miles partner.
It might make more sense to credit stays longer than two days and/or lower earnings Hilton brands to BMI. You could get 1000 BMI Diamond Club miles per night up to three nights. British Airways is in the process of buying BMI, and Diamond Club will most likely merge with British Airways’ Executive Club turning BMI miles into Avios.