Just wanted to share my experience flying with Icelandair from Seattle, WA to London, England. It cost us less than $60 for 2 bikes- both of which were in huge boxes. Both were cargo bikes, so weighed a good deal more than a normal bike , plus heavy duty kickstands, child seats, etc. Anyway, over all we had a great flight, cheapest tickets around and awesome service! (No, they are not paying me to say this, although IF they want to put an ad on my blog I'm okay with that hahaha)