Distance From Grand Lake St Marys Seaplane Base to Moi International Airport

The distance from Grand Lake St Marys Seaplane Base () to Moi International Airport (MBA) is 8158 miles or 13129 kilometers or 7084 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

---

How long does it take to travel from St Marys ( United States ) to Mombasa ( Kenya )?

A one-way nonstop (direct) flight between St Marys and Mombasa takes around 18 hours 45 minutes.

Estimated flight time from Grand Lake St Marys Seaplane Base, St Marys, United States to Moi International Airport, Mombasa, Kenya is 18 hours 45 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - MBA

Kilometers		13129 km
Statute Miles		8158 miles
Nautical Miles		7084 nm
Avg. Time of Flight		18 hours 45 minutes

Grand Lake St Marys Seaplane Base to Moi International Airport Flight Route Map - to MBA Flight Path

Location of Grand Lake St Marys Seaplane Base & Moi International Airport is given below.
Click the map to view St Marys to Mombasa nonstop flight path and travel direction.

Click to see flight route on Google Map between St Marys, United States and Mombasa, Kenya. .

Nonstop flight route between St Marys, United States and Mombasa, Kenya.

Time Difference Between the Airports • - MBA

Time difference between St Marys (United States) and Mombasa (Kenya) is 7 Hours.
Mombasa time is 7 Hours ahead of St Marys.

Location	Local Time
St Marys (United States)	2026-08-08, 08:03:33 EDT
Mombasa (Kenya)	2026-08-08, 15:03:33 EAT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Grand Lake St Marys Seaplane Base ( / O12) St Marys, United States

Destination

Moi International Airport (MBA / HKMO) Mombasa, Kenya