Most international flights reach Iceland at keflavik airport. There are a few exception of flights to and from Greenland or the Faroe Islands which use the domestic airport in downtown Reykjavik.
Like most domestic airports the one in downtown Reykjavik is very small and has more the flair of a bus station than of an airport. The domestic flights it serves can take you to Akureyri, Egilsstaðir or Ísafjörður to name a few places in Iceland.
Keflavik is the biggest airport in Iceland even though it has only one terminal, named after one of our most famous explorers: Leifur Eiríksson. The airport is open 24 hours, since we have planes arriving and leaving at virtually all times of the day. Still there are times which are more busy, like in the mornings when most of Icelandsair´s flights depart for Europe. During that time it is recommend to arrive at least 2 if not even 3 hours before departure, to make sure you have time to check in, clear security and reach your gate. Even after the disappearance of Wow Air there is still enough to do at Keflavík international airport.
Should you be through security quicker than expected you will find over 60,000 tax free items in 14 sectors for purchase. This can happen if you use one of the new check in terminals which are automatic rather than one of the old fashioned check in kiosks.
To get to and from the airport you have a few options such as the many car rentals located in the terminal building, taking one of the bus services are booking a private transfer. The private service is faster and more effective than a public bus service since it can offer door to door service.
The drive between the city of Reykjavik and the airport is about 45 minutes and a popular stop in the middle is the famous blue lagoon.