Restriction based on weeks of gestation:
(1) for domestic flights, up to 36 weeks gestation. (The statement is "safe up to". It is does not precisely say that this includes the 36th week.).
(2) for international flights, varies but may be up to and including 35 weeks gestation (not 35 weeks or greater).
Situations when a pregnant woman should avoid air travel (pressure and cabin conditions may cause elevated heart rate or blood pressure and/or respiratory difficulties):
(1) underlying medical conditions like heart disease, lung disease, diabetes or sickle cell anemia
(2) medical conditions associated with pregnancy, such as pregnancy-induced hypertension
(3) risk factors for premature labor
(4) placental abnormalities
General measures for all air travelers:
(1) For long distance flights the patient should wear support stockings and periodically move the lower extremities. The patient should avoid being immobile for long periods of time.
(2) Avoid gaseous foods prior to travel.
(3) Limit fluid intake prior to travel so not excessive.
(4) Continuously wear the seat belt while seated to avoid the possibility of trauma associated with air turbulence.
