The cheapest way to get from Keflavik Airport to the centre of Reykjavik, Iceland, is to take the Keflavik Airport Bus 55, run by the Straeto bus company.
Arriving in Iceland:
If you Google “How to get from Keflavik Airport to the BSÍ Bus Terminal in downtown Reykjavík”, the chances are high that the first 10 options will be for the “Flybus airport transfer”, which is a shuttle that operates between Keflavík Airport and the BSÍ Bus Terminal in downtown Reykjavík.
The journey with Flybus takes about 45 minutes and departure times are coordinated with the flight arrivals, departing 35 to 45 minutes after every arrival.
The ticket will cost you 3.899 ISK for a single and 7.199 ISK for a return.
The advantage is that they service the early morning departures. I do need to take one as my flight out of Reykjavik is at 07:30 but for an arrival at 3 pm, there is simply no need to take this very expensive option. Iceland is expensive enough, saving every penny where you can, is the main objective here.
How much is bus 55 from Keflavik airport to Reykjavik
The Keflavik Airport Bus 55 to the BSI Bus Terminal in downtown Reykjavik will cost you just 2280 ISK.
This is the cheapest option, but check the timetable as it is not an option for those early morning flights!
This is the location of the Keflavik Airport Bus 55 on Google Maps.
If in doubt, head to the Aurora Hotel, seen in the background:
The Keflavik Airport Bus 55 timetable from Reykjavik Airport to the BSI Bus terminal in downtown Reykjavik:
Ticket for the Bus 55 run by Straeto (There is no need to use the ATM in the airport because you can pay with card):
The arrival point in Reykjavik is the BSÍ Bus Terminal. The journey was running a bit late. It took 90 minutes.
Here’s the timetable for the Keflavik Airport Bus 55 from the BSí Bus Terminal to Keflavik Airport:
From the BSI Bus Terminal, it’s only a 15-minute walk to the Kex Hostel.