What is the most convenient way to travel by taxi from Keflavik to Reykjavik?

The most convenient way to travel by taxi from Keflavik to Reykjavik is to pre-book a taxi service or use a taxi-hailing app to arrange for a taxi to pick you up at the airport and take you directly to your destination in Reykjavik. This option allows for a hassle-free and efficient journey without the need to wait for a taxi at the airport.