Hi,  My wife's NT scan report showed placenta is low lying at week 12. Later at week 21 anamoly scan showed placenta has moved up and now 2.4cms away from internal os. Can she travel by flight? It is 2 hours flight. If below precautions taken: 1. 90mins journey by Cab to airport with break/halt in each 30mins, 2+3mins walk and drink water til we reach airport. 2. Asking cab driver to drive very smoothly and slowly to avoid any jerk. 3. My wife will sit in the front seat of the cab. 4. After reaching airport to till we board the flight, walk and drinking water walk in every 20-25mins. 5. Use cushion to sit comfortably in flight. 6. Drinking enough water and If flight is stable then walk in each 20-25mins during flight journey. 7. In entire journey while sitting, moving legs slowly to keep a good blood flow. The question is lengthy but had to explain as I didnt any proper answer. Thank you