British Airways Express are the main flight operators running flights on a daily basis to Sumburgh on Mainland. For further details contact BA Express on 0345 222111. The trip lasts approximately 14 hours. If you haven't taken your own vehicle across on the ferry, cars can be hired in Lerwick. Though not essential, booking is advisable during the main tourist season and particularly when trying to get the last crossing of the day.
Bus services do run on many of the islands and also between islands via the ferries.
For further information on travel to, and around, Shetland, hire car companies, specialist tours, accommodation etc. A detailed site guide for Shetland with information on the birds, travel and accommodation. A detailed summary of the status and occurrence of all birds recorded on Fair Isle to date.