The national park is an easy one hour trip from the capital Reykjavík. If driving from Reykjavík it is necessary to drive to route 1 via Mosfellsbaer. From there it is possible to access route 36 which runs through Þingvellir.
Buses also run from BSÍ bus terminal in the centre of Reykjavik during the summer season. The fare in 2008 is 1,700 kr and the bus departs in the morning and leaves for Reykjavík in the late afternoon.