For most healthy pregnancies, flying is considered safe until around 36 weeks (about 28 for some airlines, and earlier for twins). Many airlines require a doctor's letter after 28 weeks and won't board you in the final weeks. Always confirm with your provider and the airline first.
This is general information, not medical advice — your provider’s guidance comes first.
The sweet spot: the second trimester (roughly weeks 14–27) is when most people are advised to travel if they’re going to — nausea has eased and the later restrictions haven’t kicked in.
Airline cut-offs: these vary, but a common pattern is:
- A doctor’s or midwife’s letter required after about 28 weeks, confirming your due date and fitness to fly.
- No flying after about 36 weeks for a single pregnancy, and often 32 weeks for twins or more. Check the specific airline — the rules differ and they’re enforced at the gate.
On board: stay hydrated, walk every hour and wear compression socks (pregnancy raises clot risk), keep your seatbelt low under the bump, and choose an aisle seat.
Before you book: confirm with your provider, check the airline’s policy in writing, and make sure travel insurance covers pregnancy.
Related questions
How do I survive a long-haul flight?
Choose your seat deliberately, dress in layers, drink water and skip alcohol, walk every two hours, download entertainment in advance, bring your own snacks, and plan sleep around the destination's clock. Compression socks help on flights over eight hours. Full answer →
Is travel insurance worth it?
For international trips, medical cover alone justifies it — a hospital stay abroad can cost tens of thousands. Trip-cancellation cover is worth it for expensive, non-refundable trips. Check what your credit card already includes before buying. Full answer →
Which seat is best on a plane?
Window to sleep, aisle to move, exit row for legroom (if you're able-bodied and don't need under-seat storage), front of the cabin to deplane fast. Avoid the last row, seats by lavatories and galleys, and 'misaligned' windows — check a seat map first. Full answer →
Airline, airport and government rules change without notice. Treat this as a starting point and confirm with the airline or authority for your specific trip. Request a correction if something is out of date.