Is air travel safe during pregnancy?
For all practical purposes, the answer to this question is yes. However, some concerns have been raised regarding exposure to cosmic radiation, as well as dehydration and blood clots that may occur during a flight. Regarding exposure to cosmic radiation, available studies are limited and primarily focus on flight attendants and individuals who frequently fly. There is no official evidence showing that occasional air travel increases the risk of health problems for a fetus.
Because pregnancy increases the likelihood of blood clot formation, prolonged immobility during long flights can lead to venous thrombosis in the legs. This can be exacerbated by the low humidity in the cabin, which leads to dehydration and, in turn, increases blood viscosity and the likelihood of clot formation. However, if you keep yourself hydrated by drinking water regularly and avoiding alcohol, and if you get up from your seat every 1–2 hours, no problems should arise.
It is also important to note that any pregnancy, including those classified as low-risk, can unexpectedly develop into a high-risk pregnancy. If this occurs during a flight, it could potentially pose a threat to the fetus. However, this can happen anywhere, and air travel does not increase the likelihood of such an event.
