Old May 2, 19, 1:54 pm
Join Date: Sep 2008
Location: CPH
Programs: SK*LifetimeG, AY*S, Member of LH, BA, VS, NH and FI
Posts: 67
Thanks for all the comments.

I did the follwing way.
Before I check in, I went to SAS website and looked up my LH/SN-booking. And I choose option for customise frequent flyer number per flight. I only add my number for the flights out.

This worked totally well, and when I checked in for SN flights on my way home, my number was not registered for the flights.
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