Though air travel during pregnancy is generally allowed, most airlines have restrictions for individuals in late pregnancy.

More specifically:

• After the 28th week of pregnancy, a letter from a doctor or midwife should accompany the traveler, which confirms the expected date of delivery and that the pregnancy is progressing normally.
• For single pregnancies, flying is permitted until the end of the 36th week.
• For multiple pregnancies, flying is permitted until the end of the 32nd week.

For more information, please consult the advice of the World Health Organization.