Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok to Mombasa as you normally would.
Mombasa Moi Intl (MBA), located 8.0 km from the city centre, is the airport you fly into when you book flights from Bangkok to Mombasa. 0 airlines have flights to Moi Intl from Bangkok on a regular basis. Booking flights from Bangkok to Mombasa Moi Intl should not be difficult; the airport handles an average of 0 inbound flights from Bangkok per day.