The Maasai Mara is approximately 280 kms west from Nairobi City.
There are two ways to get to the Maasai Mara.
Drive – Driving will take you about 5-6 hours. Getting to Narok from nairobi will take you about 2-2.5 hours, the road is absolutely beautiful and smooth. In Narok there is a fuel station just across the river which is a great stop for food, toilet and snacks. Leaving Narok to Sekenani Gate will take you about 2-3.5 hours depending on the vehicle you are travelling with. The road is not best by far, they have recently graded it but due to the high traffic volume it is not expected to last long. It is bumpy!
Fly – There are a few companies that fly to the Maasai Mara. It takes about an hour or so. You may find yourself having a few stops on the way due to other passengers landing at one of the 6 airstrips in the Mara. By far the best way to travel, but you do miss out on seing more of the country.