A crackdown is to be launched by the UK's airline watchdog on hidden fees charged by airlines.
Every airline selling tickets will have their practises looked into in a bid to see whether costs are presented in an 'open and clear' way. It's to prevent travellers being unexpectedly charged more for travel.
Some of the basic services that charges are levied on being looked at by the Civil Aviation Authority (CAA) include name changes, checking in at the airport rather than online and re-issuing boarding passes.
Choosing to check in for a Ryanair flight at the airport instead of through its website can land passengers with a bill of £45.
And to get a boarding pass re-issued at the terminal by the Irish airline requires a payment of £15.
A CAA spokesman said the investigation is 'about making sure airlines are open and clear so that people understand what they are actually paying for'.
He added: "You've got the headline price of the ticket, but are there any additional things that people have to be aware of that they will have to pay for?"
Aviation minister Robert Goodwill recently faced calls to challenge Ryanair over the costs associated with amending travel documents with the airline.
He said: "The Government and the CAA continue to emphasise to the airlines the importance of compliance with ticket transparency obligations, ensuring that terms and conditions, including any administration fees and charges, are clear to passengers when they choose between airlines.
"To enhance consumer protection in this area, the CAA will start work on unfair contract terms with the airlines this summer, in accordance with the CAA's Strategic Plan 2016-2021.
"The work will include a review of the airlines' terms and conditions with the aim of ensuring the rights and obligations of the consumers and businesses are fair and balanced and consumers are not being penalised by unfair contract terms."
Two cases are currently being prepared against airlines by legal website CaseHub, including one concerning Ryanair and the matter of fees.
CaseHub founder Michael Green said the case involving Ryanair will claim charges to check in at the airport, re-issue boarding passes and name-fee changes are unlawful.