You can typically fly safely during pregnancy until about 36 weeks for a single pregnancy. Most airlines and medical guidelines advise against flying after 36 weeks due to increased risks. If carrying multiples or having pregnancy complications, this cutoff may be earlier — around 32 weeks — and medical clearance is usually required. It's also recommended to consult your healthcare provider and possibly get a medical clearance letter if flying late in pregnancy. Airlines may also have specific policies requiring documentation after 28 weeks.
For shorter flights (under four hours), some airlines may allow flying until the 40th week under uncomplicated pregnancy conditions, but this is less common and depends on airline policies and medical advice.
The safest and most comfortable time to fly is usually during the second trimester, but if travel is necessary later, medical consultation is key. During flights, it's advised to stay hydrated, move around periodically to reduce clot risks, and wear a seatbelt under the belly securely.
