from the uk. for safety reasons, it is compulsory on many airlines for any passenger with mobility problems to travel with a personal care assistant, for which they charge full price for the additionalfare. the civil aviation authority upheld eu law post brexit, which means airlines are supposed to subsidise the cost. disabled people say the current measures are discriminatory and are stopping them from flying. bbc news has contacted over 100 airlines, including all those that fly from heathrow, to find out how many insist on a pa and whether they offer a discount. and this is what they found. 0nly pakistan international airlines offered pa discounts for both international and domestic travel. a0 carriers, including turkish airlines and delta, do not clearly set out how much it costs, nor whether the individual or the airline should pay. strikingly, around a third of airlines confirmed that they require passengers with mobility problems to purchase an additional pa