Travellers out of British Columbia and Alberta, here's an opportunity to save a little on your next Alaska Airlines flight -- in honour of Earth Day, you can save 10% on all flights booked today (with travel occurring between April 24-June 9).

To redeem, book your flights through this link or enter coupon code FLYGREEN2012 when booking today. Alaska Airlines will donate five miles from each ticket sold during this promotion to The Nature Conservancy.

Western Canadian travellers can currently book Alaska Airlines flights out of Calgary, Edmonton, Kelowna, Vancouver, and Victoria. BC travellers willing to fly out of Bellingham, WA can save even more -- a return flight to Honolulu is just $326.70 CDN with this discount and all taxes in (May 22-June 6)! This special discount offer is valid online only and expires at 11:59PM PT.