By plane
You can fly in from most European cities London, Frankfurt, Paris, Amsterdam, Madrid, Rome; from Doha, Dubai, South Africa, Ethiopia, and Kenya. There are also direct flights from the United States Atlanta, Houston.
Lagos is close about 100km to the border with Benin. Should you fly out of the International Airport in Lagos, arrive early, especially close to weekends and festive days, as the security has been beefed up significantly with little increase in manpower or scanners and is much, much more time-consuming than previously since the December 2009 liquid explosive incident where the terrorist started his journey from Lagos airport.
There are quite a number of pay-access and Priority Pass lounges after passport control after two hours in the security queue, you will want to use it if you have the time and $50 to spare. Use Oasis or Skye Lounge, both of which are good, especially Oasis which is very nice even by 1st world standards. Gabfol lounge is free, but you pay for food and drinks.
