Issuing fitness-to-fly certificates during pregnancy is not provided by the NHS, including services from midwives, consultant obstetricians, and GPs.
If you require a fitness-to-fly certificate, you will need to contact a registered private health provider. You can find one by searching for ‘fitness to fly certificate in pregnancy’ online.
For further information on air travel during pregnancy, please look at the Royal College of Obstetricians and Gynaecologists (RCOG) leaflet: RCOG Air Travel During Pregnancy Guide