Flights & getting there
Bus 790 links hourly to Marstal via Ærøskøbing from a stop beside the harbour.
Ærøfærgerne runs year-round car ferries from Søby to Faaborg (4am, weekdays only, 10.15am and 3.15pm, one hour) and Fynshav (6.20am, 12.55pm and 6.10pm, 70 minutes). Whichever ferry ticket brought you to Ærø should be valid to return from here, but booking the departure slot for vehicles can be wise, especially at busy periods. Pedestrians beware that onward buses from Fynshav to Sønderborg are poorly timed (indeed nonexistent for the last boat except on Sundays).