Typically, the best time to fly during pregnancy is the second trimester. It's often the most comfortable time for expectant mothers, since the nausea, fatigue, and risk of miscarriage of the first trimester has usually passed. Many airlines restrict travel during the last month of pregnancy because of the risk of going into labor during the flight, and may require a permission letter from a doctor. Airlines have no restrictions on travel during the first and second trimesters.
Pregnant women should keep themselves as comfortable as possible during the flight, and stretch their legs frequently to prevent the possibility of blood clots. They should make sure to drink plenty of water and fluids, and bring a snack in case they need extra food or don't like the airline's offerings. Pregnant women may also want to book an aisle seat, so they can get up to stretch or go to the restroom as easily as possible.
Many women prefer to continue normal activities, such as travel for work or pleasure, for as long as possible during pregnancy. Since some jobs require business trips, being able to fly can also allow some women to continue working while pregnant. Many expectant couples also choose to take a trip together before the baby is born, especially if it's their first, so they can enjoy one last vacation together with just the two of them.
Some common concerns pregnant women have about flying during pregnancy are the effects of being at altitude and enduring pressure changes, and the possibility of increased radiation. Commercial airlines are required to use pressurized cabins that help prevent major changes in blood pressure and oxygen needs. Pregnant women may want to avoid flying in small planes that are not pressurized, however. While airplanes travel where the atmosphere is thinner and therefore may be exposed to more radiation from the sun, experts agree this risk is minimal.
You may need to avoid flying during pregnancy if you have complications such as diabetes, blood pressure issues, vaginal bleeding, a history of blood clots, if you're carrying twins or multiples, or if you're at risk of pre-term labor. Check with your health care provider before making travel plans, and find out where you should go, or who you should call, if you have health issues while on a trip. Women traveling during the third trimester should check with their specific airline for any restrictions or requirements.
