Most women can travel safely while pregnant. Flying does not increase your risk of premature labour or miscarriage.
Flying may not be recommended if you:
- have a condition affecting your blood cells, such as sickle cell disease or anaemia
- have any condition affecting your heart or lungs that makes it hard for you to breathe
- if you previously had a premature birth (before 37 weeks) and are at risk of premature labour
- recently had a vaginal bleed
Long-haul flights (more than 4 hours) can be more uncomfortable than shorter flights.
There is also a higher risk of developing deep vein thrombosis (DVT) on long-haul flights.
Before you book
Check the following things before arranging flights:
Airline rules
After 28 weeks, the airline may ask for a letter from your doctor or midwife confirming your due date. This is to make sure you are not at risk of complications.
Many airlines do not allow women to fly after 37 weeks. Make sure you check with your airline before booking.
When it is safe to fly
If you are pregnant with 1 baby, the safest time to fly during pregnancy is before 37 weeks.
If you are pregnant with twins, the safest time is before 32 weeks.
Talk to your GP, obstetrician or midwife before you take a flight.
Medical facilities
Before you book, find out if there is a maternity hospital close to your destination. You should also find out if there are facilities for premature babies in the event of premature labour.
Cost of medical care overseas
Check that your travel insurance covers you while pregnant. This includes if you need to be admitted to hospital abroad or have other related costs.
For example, you may have to stay in hospital for several weeks if you develop complications such as ruptured membranes or preterm labour. After you leave hospital, you may not be able to fly for some time.
If you’re travelling to Europe, get a European Health Insurance Card.
This is free and allows you to get free access to public health services in:
- European Union (EU) countries
- European Economic Area (EEA) countries
- Switzerland
The card entitles you to necessary healthcare if you become ill or injured while on a temporary stay. It does not cover private treatment.
Travel vaccines
Talk to your GP or obstetrician if you are travelling to a place which requires vaccinations. Make sure you get the correct vaccinations needed for risk areas.
What to pack
Make sure you bring:
- any medicines in your hand luggage, including folic acid
- a letter from your GP and medical notes (if you have them)
Common concerns while flying
Concerns may include:
Worsened pregnancy symptoms
Pregnancy symptoms may get worse when you fly. These include a blocked nose or ears, swollen legs and morning sickness.
Airport security
You will have to go through all of the usual security checks at the airport. Walking through the security scanner is not harmful for you or your baby.
Seat belt
You must wear a seat belt when flying. Ask the cabin crew for help with this if needed.
Radiation
Anyone who flies is exposed to a slight increase in radiation because of being at a higher altitude. Occasional flights do not put you or your baby at risk.
Talk to your manager or occupational health department if you:
- are a member of a flight crew (for example, a pilot or flight attendant)
- fly regularly as part of your job
Deep vein thrombosis
DVT is a blood clot that can form in your leg. It can be very dangerous.
Your risk of developing DVT is increased when pregnant.
This is more likely to happen in flights over 4 hours (long-haul flights).
To reduce your risk and help your circulation:
- wear loose clothing and comfortable shoes
- take regular walks and do in-seat exercises
- drink plenty of water
- wear graduated elastic compression stockings - your midwife, GP or pharmacist will need to measure you
If you have other risk factors, an injection of heparin (blood thinner) may be recommended.
Deep vein thrombosis in pregnancy
Going into labour on the plane
Going into labour or having your waters break on a plane is extremly rare. It happens in roughly 1 in 26 million passengers.
There may be doctors or midwives among the passengers who can help you birth your baby safely. Cabin crew may have had some training in this. But this is not guaranteed.
The pilot may have to divert the plane to the nearest airport to get help for you.