Iceland boasts excellent public transportation which we recommend for any travellers who are travelling light.
Public transport service connects Keflavík Airport and Reykjavík directly by Route 55 (timetable).
To get a clearer picture of the route you can do a search on the Strætó map. Search for KEF – Airport to BSÍ to see the whole route. (Click the selections that pop up when typing.)
For detailed information and fare prices see Strætó’s page about the public transport service between Reykjavík and Keflavík Airport.