The longest flight from Nairobi NBO is a 4,568 mile (7,351 km) non-stop route to New York City JFK. This direct flight takes around 15 hours and is operated by Kenya Airways.

As of early 2026, the longest direct flight from Nairobi Jomo Kenyatta International Airport (NBO) is the service to New York City (JFK), operated by Kenya Airways. This ultra-long-haul route covers approximately 11,850 kilometers (7,360 miles) and typically takes between 14 and 15 hours depending on wind patterns. It is a flagship route for Kenya's national carrier, utilizing the Boeing 787-8 Dreamliner. The flight is strategically important as it connects East Africa directly to North America, bypassing the traditional layovers in Europe or the Middle East. Other notably long flights from Nairobi include direct services to Guangzhou (CAN) and Bangkok (BKK), but the New York route remains the record-holder for both distance and duration. Travelers on this route are advised to prepare for a significant time-zone shift and to take advantage of the Dreamliner's enhanced cabin pressure and humidity levels designed to reduce jet lag.