Wizz Air: pregnancy, illness and fit to fly rules
What Wizz Air actually requires — pregnancy cut-off weeks, certificate rules, infectious illness waiting periods and medical cancellations. From their own published policy.
The short answer. Wizz Air carries an uncomplicated single pregnancy to the 34th week and a multiple pregnancy to the 32nd week. Wizz Air requires a fit to fly letter from week 28 of pregnancy.
Worth knowing: Wizz Air has the earliest cut-off of any major carrier serving the UK at 34 weeks — two weeks earlier than British Airways, TUI or Ryanair.
Pregnancy rules
| Requirement | Wizz Air |
|---|---|
| Single pregnancy — last week carried | Week 34 |
| Multiple pregnancy — last week carried | Week 32 |
| Letter required from | Week 28 |
| How recently the letter must be dated | issued within 6 days of the flight date |
Wizz Air requires a medical certificate confirming fitness to travel by air for any passenger over the 28th week of pregnancy, containing explicit medical approval for carriage by air.
Two dates matter, and people plan around the wrong one. The first is the week from which you need a letter. The second is the week Wizz Air stops carrying you — and that one applies on the day you fly home as well as the day you fly out. Work backwards from your return date first.
Chickenpox and infectious illness
Wizz Air does not publish a specific chickenpox waiting period. Contact the airline directly before travelling, and expect to be asked for a letter confirming that the passenger is no longer infectious — that is the question ground staff have to answer, whether or not a number is published.
As a working guide, most UK carriers that do publish a figure use 6 or 7 days from the last new spot. Assume Wizz Air will apply something similar unless it tells you otherwise.
If you need written confirmation that you or your child are past the infectious stage, here is what the letter needs to say.
Medical clearance beyond a letter
A doctor’s letter covers most situations. Where a condition is more complex — a pregnancy with complications, a need for in-flight oxygen, a recent cardiac or neurological event, or travel soon after major surgery — airlines generally require formal clearance from their own medical department via a MEDIF form, not just a letter from your GP.
MEDIF clearance takes days rather than hours, so start it as early as you can. How MEDIF clearance works.
Cancelling a Wizz Air booking on medical grounds
If illness means you cannot travel at all, the position is broadly the same across carriers: refund rights depend on your fare, and any medical cancellation or insurance claim will need documentation. Tell Wizz Air or your tour operator as soon as you know — several insurers reduce a claim if a delay increased the cancellation charge — and then get the medical evidence.
Cancelling a holiday due to illness · The certificate insurers ask for
Common questions
How many weeks pregnant can I fly with Wizz Air?
Wizz Air carries an uncomplicated single pregnancy up to the 34th week, and a multiple pregnancy up to the 32nd week. Remember the limit applies on the day you travel — including your return flight.
Do I need a fit to fly letter for Wizz Air?
Yes, from week 28. Wizz Air requires a medical certificate confirming fitness to travel by air for any passenger over the 28th week of pregnancy, containing explicit medical approval for carriage by air.
How recently must the Wizz Air letter be dated?
It must be issued within 6 days of the flight date. Getting the letter too early is a common and expensive mistake — if it falls outside the window you will need a second one.
What if I need to cancel a Wizz Air booking because I am ill?
Refund rights depend on your fare type and, for a package holiday, on the operator’s terms. What is consistent across carriers is that a medical cancellation needs medical evidence. Notify the airline or operator as soon as you know you cannot travel, then get a not fit to fly certificate to support the claim. Your options in full.
Related
Sources. The airline and clinical facts on this page were checked against these primary sources on 24 August 2026. Airline policies change without notice — always confirm with your airline before you book or travel.
Need a fit to fly letter for Wizz Air?
A GMC-registered UK GP issues the letter in the format Wizz Air asks for, and can complete their own form where they have one. Same day on weekdays.
Get startedReviewed by a GMC-registered GP. Full refund if a certificate cannot be issued on clinical grounds.