Pregnant women can fly safely, observing the same precautions for air travel as the general population. Because severe air turbulence cannot be predicted and the subsequent risk for trauma is significant should this occur, pregnant women should be instructed to use their seat belts continuously while seated.

For a healthy, uncomplicated pregnancy, flying during the first month (and the first trimester in general) is considered safe by most medical professionals, including the Royal College of Obstetricians and Gynaecologists (RCOG). There is no evidence that the changes in air pressure or cosmic radiation from occasional flights cause miscarriage or harm the baby at this early stage. However, the first month often coincides with the onset of morning sickness and fatigue, which can make flying uncomfortable. Furthermore, pregnancy increases the risk of Deep Vein Thrombosis (DVT) or blood clots; on flights over four hours, it is vital to stay hydrated, wear compression stockings, and move your legs frequently. While the flight itself isn't harmful, some doctors suggest having an early ultrasound to rule out an ectopic pregnancy before traveling far from home, simply because most pregnancy emergencies occur in the first three months. Always consult your specific healthcare provider before a long-haul trip to ensure your individual health profile supports travel.