When I travel to the Alps, I get on a train in Edinburgh, hook up with friends in London, and spend a day driving across France. Does it take a long time? Yep. Is it relaxing. Yep. The only time I flew, I joined a group for week 2 of their fortnight holiday, and they had taken my bike with them the week before as there was no way I was risking a damaged bike, and I missed the drive. There’s something about that drive to Morzine…
Having said that, about 20 singlespeeders got on an Easyjet flight to Berlin for the 2004 SSWC – they managed that fine, bikes arrived in the baggage hall before we did, still freezing cold. On the way back, they forgot to wheel the trolley into the baggage reclaim – causing a bit of a delay, but all arrived safe and sound. Perhaps, as people have said, they are getting worse.
And FWIW, Endsleigh insurance covers DH mountain biking (I phoned and verified) and costs less than a round of drinks in Morzine. I think that’s a price worth paying.