You may travel to the end of week 30 without certification. Between 30 and 36 weeks of your pregnancy you’ll need written approval from your doctor confirming your expected date of delivery, that you are in good health and that there is no reason why you should not fly. Beyond 36 weeks we will refuse travel. Please consider your return journey when you make your reservation. For mothers expecting twins or triplets travel may be permitted up to the end of your week 32 of pregnancy.