Flying while pregnant: tips and rules for safe air travel

Flying while pregnant – tips and rules you should know

Is it safe to fly while pregnant? Until which week do airlines allow pregnant passengers to fly? Is air travel dangerous for the baby?

If you are pregnant right now, planning a pregnancy or travelling with someone who is expecting, these questions will sound very familiar. The good news is that in most uncomplicated pregnancies occasional air travel is considered safe – as long as your doctor approves and you follow your airline’s rules.

In this article we cover:

• until which week airlines usually allow pregnant travellers to fly,
• when a medical certificate or MEDIF form is required,
• in which situations flying is not recommended,
• which trimester is the most comfortable for travel,
• how to prepare and make your trip as comfortable as possible,
• and why it is often easiest to reach the airport by car plus secure airport parking in Belgrade.

Important: the information in this article is general and does not replace the advice of your doctor. Every pregnancy is unique – always check with your gynaecologist before booking a flight.

Until which week can you fly when pregnant?

For a single pregnancy, most airlines allow travel until around 36 weeks of gestation. For twin pregnancies, the limit is usually around 32 weeks.

However, this is only a rule of thumb. Each airline has its own policy, so make sure to:

1. read the conditions of carriage on the airline’s website before you buy a ticket;
2. discuss your travel plans with your doctor, especially in the third trimester;
3. avoid flying shortly after giving birth, as the post‑partum period has its own risks.

Do you need a doctor’s certificate?

After about 28 weeks of pregnancy most airlines will ask for some kind of medical confirmation that your pregnancy is progressing normally. In practice this usually means:

• a medical report from your gynaecologist with the gestational age and estimated due date,
• the airline’s own MEDIF or medical information form, filled in and signed by your doctor,
• a document issued no more than a few days before departure (exact limits vary by airline).

The safest option is to schedule a check‑up and obtain the certificate a few days before your flight so that the information is up to date.

When is flying during pregnancy not recommended?

Air travel is usually not advised – or only allowed with special approval – in the following situations:

• pre‑eclampsia or poorly controlled high blood pressure,
• significant anaemia or serious heart / lung conditions,
• a history or high risk of deep vein thrombosis (DVT),
• threatened preterm labour, cervical cerclage or similar complications,
• leaking amniotic fluid or a risk of ruptured membranes,
• unexplained vaginal bleeding.

If your pregnancy is classified as high risk, your doctor must carefully assess whether you are fit to fly. In such cases the airline may require:

• a fully completed MEDIF form,
• supporting medical reports in English,
• submission of the documents at least 48 hours before departure.

Which trimester is best for travelling?

Reactions to pregnancy are highly individual, but most doctors and travellers agree on the following rough guide:

• First trimester (up to 12 weeks) – nausea, fatigue and mood swings are common; the risk of miscarriage is higher, so many women avoid long trips in this period.
• Second trimester (13–27 weeks) – usually considered the sweet spot for travel. Nausea often subsides, the bump is still relatively small and energy levels are higher.
• Third trimester (from 28 weeks) – the bump grows quickly, it becomes harder to sit for long periods and swelling of the legs is more frequent. Flying is still possible, but with more limitations.

If you can choose, plan your trip so that the main travel time falls during the second trimester.

Preparing for a flight while pregnant

Travelling while pregnant is still exciting, but it does require a bit more planning. Use the following checklist:

1. Talk to your doctor in advance

• book an appointment several weeks before your trip;
• check your blood pressure, blood tests and overall wellbeing;
• ask clearly how long a flight your doctor considers acceptable for your situation;
• if the airline requires a certificate, request one in both your local language and English.

2. Choose appropriate travel insurance

Standard policies often have restrictions related to pregnancy (for example only up to 28 or 32 weeks). Choose insurance that explicitly covers pregnancy, and read carefully:

• up to which gestational week you are covered,
• whether pregnancy complications and preterm birth are included,
• what emergency medical costs abroad are covered.

3. Plan your transport to the airport

Instead of juggling taxis, public transport and luggage, it is usually most comfortable to drive to the airport in your own car. You can leave your vehicle at Carport airport parking Belgrade – a private, fenced and monitored parking facility close to Belgrade Nikola Tesla Airport.

Our staff will quickly transfer you from the parking lot to the departure terminal and back to your car when you return. That way you can:

• avoid rushing for taxis with suitcases,
• avoid the stress of crowded public transport,
• know that your car is parked in a secure location while you are away.

Check our services page and location page for more details.

Direct flight or connecting flight – what is better when pregnant?

While connecting flights can shorten individual flight segments, in reality they mean more walking, more queues and more stress. During pregnancy it is usually better to:

• choose direct flights with full‑service airlines whenever possible;
• avoid complex itineraries with multiple tight connections;
• consider paying extra for seats with more legroom on long‑haul flights.

Budget connections with several layovers may look cheap on paper, but they can be exhausting when you are pregnant.

Are metal detectors at the airport dangerous for pregnant women?

No. Standard walk‑through metal detectors and security scanners at airports have not been shown to harm pregnant women or their babies. Security screening is carried out in the usual way.

What you can do, especially in late pregnancy, is politely ask to be fast‑tracked through security and passport queues if they are long. Airport staff are generally understanding and many fellow passengers will happily let you go ahead.

How to wear a seat belt on the plane when pregnant

Wearing a seat belt on the plane is simple:

• position the belt below your bump, across the hips, not over the highest part of your abdomen;
• tighten it so that it is snug but not uncomfortable;
• keep it fastened whenever you are seated, not only during take‑off and landing.

In case of turbulence, a correctly fastened belt significantly improves the safety of both you and your baby.

How to reduce nausea during the flight

Lower cabin pressure, limited space, food smells and turbulence can aggravate pregnancy‑related nausea, especially in the first trimester. To ease the symptoms:

• eat small, light meals before the flight;
• avoid heavy, greasy and very spicy food as well as sugary drinks and excess caffeine;
• sip water regularly in small amounts;
• bring plain crackers, nuts or biscuits that usually help with your nausea;
• ginger in the form of sweets or biscuits may help some women – ask your doctor first;
• don’t hesitate to ask the cabin crew for a cup of tea, water or ice and let them know if you feel unwell.

If your doctor has prescribed anti‑nausea medication that is safe in pregnancy, keep it in your cabin bag and follow the rules for carrying medicines and liquids on board.

Staying comfortable on longer flights

To make a longer flight as pleasant as possible:

• wear comfortable maternity clothes made of breathable fabrics,
• choose trainers or shoes that allow for possible swelling of the feet,
• bring a light jumper or scarf, as planes and airports can be chilly even in summer,
• use a neck pillow or small cushion for your lower back,
• whenever the seat belt sign is off, walk along the aisle at least once every hour,
• regularly perform simple foot exercises – ankle circles, heel and toe raises – to encourage blood circulation.

If you are at increased risk of thrombosis, your doctor may recommend compression stockings or other measures – make sure to discuss this before travelling.

Is in‑flight radiation dangerous for mother and baby?

At cruising altitude passengers are exposed to slightly higher levels of cosmic radiation because the atmosphere is thinner. However, on normal commercial flights this exposure is very low.

For travellers who fly only occasionally, the total dose is far below any level considered harmful. Even for frequent flyers and cabin crew the exposure is monitored and generally regarded as acceptable.

If your job involves flying very often, talk to your doctor about your individual situation.

Final checklist for flying while pregnant

With a healthy pregnancy and your doctor’s approval, air travel can be a safe and enjoyable experience. To keep it that way:

• whenever possible, schedule trips in the second trimester,
• check your airline's rules and arrange any necessary medical certificate or MEDIF form,
• choose travel insurance that covers pregnancy,
• book direct and comfortable flights instead of exhausting connections,
• pay attention to diet, hydration and movement during the flight,
• organise your transport to and from the airport so that it is as stress‑free as possible.