Guidance for passengers
You may be asked for proof of your “fitness to fly” when requesting assistance. If you have a stable condition, there is generally no need to be cleared for travel.
There are usually two parts to the medical clearance process
Airlines may decide that for safety reasons, you must travel with a carer.
This is generally the case if a passenger can’t undertake activities such as:
Your travelling companion will usually need to buy their own ticket. However, the airline should make all reasonable efforts to ensure that you and your companion can sit next to each other.