Airlines accused of obstructing holidaymakersRaymond Veldkamp has voiced his criticism of airlines.
Airline firms based in Europe have been accused of seeking to block passengers who want to pursue compensation for delays and cancelled flights.
Flight-Delayed.co.uk has represented fliers in seven European countries and claims to have encountered airlines that refuse to share important information with them.
What's more, the website said that, in some instances, claims made against airline firms have been rejected out of hand, meaning the consumers have to contend with a long, arduous process if they wish to pursue the complaint.
"Passengers are often not aware of their rights," Raymond Veldkamp from Flight-Delayed.co.uk told the Daily Telegraph.
He added that holidaymakers will "usually be fobbed off with vouchers for a future flight, when they are entitled to proper compensation".
In 95 per cent of cases, carriers will reject the claims of passengers, according to Mr Veldkamp, who said responding letters are often filled with jargon so as to confuse the reader.
He cited Ryanair, the lost-cost airline, as being among the worst exponent of these practices, saying that complaints are often dealt with in a dismissive manner.
Consequently, the travel expert has implored airlines to be more transparent when it comes to flight delays and the reasons for them.
In recent days, the EU Court of Justice in Luxembourg confirmed that any passenger who is delayed by more than three hours will be compensated by their airline, assuming there are no "extraordinary circumstances".
Under the terms of the legislative changes, passengers are to be entitled to between £206 and £488 for delayed or cancelled flights.
But according to Nick Trend, Telegraph Travel's consumer editor, this is unlikely to lead to a sudden change for consumers.
"Unfortunately," Mr Trend explained, "the definition of 'extraordinary’ is used to cover most delays, including those caused by bad weather, strikes and political instability."