I'm flying in business RT on KL/AF from Canada to South Africa. I want to join the ST FFP that will give me the most reward for those flights.
FF miles are not equal to earn or use
One trip may not enough for a descent award flight.
USA based airline ffp's tend to be more generous (status benefits/earn/burn/upgrades/award cost/award cash surcharges/expiry/affiliated credit cards/promotions) compared to non USA based airline ffp’s (even after the recently announced changes to some USA ffp’s)
Delta is Skyteam and miles do not expire.
Have a look a AS
https://www.alaskaair.com/content/mi...ePlan-partners KLM/AF are partners as are other airlines.
Check the earning for your booking class
http://www.wheretocredit.com/ (may not be accurate)
http://www.flyertalk.com/forum/miles...nt-expire.html
Award cost, but always check the airline web sites and any cash co payments
http://www.flyertalk.com/forum/trave...demptions.html
http://www.awardace.com/