Hilton HHonors has two separate offers for Air Canada Aeroplan member stays between March 1 – May 31, 2015.
Those that join Hilton HHonors and consume a stay during the promotional period will receive 2,000 bonus miles (sign up using specific link required). All Air Canada Aeroplan members earn double miles for their stays March 1 – May 31, 2015.
You can access and register for these offers here.
Note that both offers require that you have your Hilton HHonors Double Dip option set to Points + Miles and have Air Canada Aeroplan chosen as the preferred partner.
Double miles for stays is not that great of an offer. I prefer promotions that give you set number of bonus miles like the current British Airways (access here) and Air France-KLM Flying Blue one (access here).
Here are the terms and conditions of this offer:
Aeroplan members who join Hilton HHonors™ during this promotion by enrolling on the exclusive enrollment page hhonors.com/enroll/Aeroplan, and complete a qualifying stay between March 1, 2015 and May 31, 2015 will receive a one-time bonus of 2,000 bonus Aeroplan miles. A ‘stay’ is defined as the total number of consecutive nights spent at the same hotel, whether or not a guest checks out and checks back in again. Guest must provide their HHonors account number at the time of booking. Please allow six to eight weeks from completion of the stay for miles to appear in your account. Members who also register for the Double Your HHonors offer can earn Double Points or Miles for the same stay. Offer is not valid for groups and may not be combinable with other select offers.
This offer is valid for Aeroplan members who enroll into the Hilton HHonors™ program via this offer. HHonors Members must set their ‘My Way™’ Earning Style Option to ‘Points & Miles™’ in the Preferences section of their HHonors profile and select Aeroplan as their preferred Airline Partner prior to completing the qualifying stays.