In most cases, pregnant women can travel safely until close to their due dates. But travel may not be recommended if you have pregnancy complications. If you are planning a trip, talk with your obstetrician–gynecologist (ob-gyn).
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Most airlines allow you to fly domestically until about 36 weeks of pregnancy. Your ob-gyn can provide proof of your due date if you need it. If you are planning an international flight, the cut-off for traveling may be earlier. Check with your airline.
Tips for flying when pregnantFor the smoothest ride, request a seat in the middle of the plane over the wing. (This is the area where you're least likely to get airsick too.) For more legroom, try to get a seat in the bulkhead or pay for an upgrade.
The airline also may require a letter from your health care provider that states how far along in your pregnancy you are and whether flying is advised. If your health care provider says it's okay for you to fly, and your plans are flexible, the best time to travel by air might be during the second trimester.
Is it safe to walk through airport security scanners when pregnant? Yes, it's perfectly safe. The kind of whole-body scanner you step through uses technology called millimetrewave imaging. It's designed to pick up potentially dangerous objects that may be concealed under clothing.