Hi Laura
Of the insurers on our panel, Insurefor.com and Post office offer Scheduled Airline Failure cover as standard and Swiftcover offer it as an optional extra.
Have you booked separate flights/hotels or have you booked a package holiday. If its the latter then you are covered should anything happen to your airline, but unfortunately there is no cover if you have booked separately. If you have booked separately did you pay on a credit card, if so then you are covered under Section 75 of the consumer credit act.
Hope this helps
Peter