According to a report, the officials used the Prime Minister’s official plane for a “boisterous merriment”.
Sky News understands that a number of officials joined the 91-minute journey over the UK, which took place with “standard in-flight catering”.
The Sun newspaper claims that during the 700-mile journey, which is said to have cost £50,000, a “luxurious meal with a selection of alcoholic beverages” was served.
Flight details show it took off from Stansted and headed to the Lake District before returning.
A statement on behalf of the government, given to Sky News, said: “To comply with Airbus and aviation industry regulations, the aircraft was legally required to operate a maintenance flight before September 4 or faced significant additional storage costs.”
Image: The RAF Voyager is used by the Prime Minister and the Royal Ramily
It is claimed that the trip by a number of Foreign Office officials was necessary to ensure that – after “a recent reconfiguration of the aircraft” – it would “still meet ministerial requirements”.
Labour’s shadow trade secretary, Emily Thornberry, told The Sun: “This would be utterly disgraceful behavior at the best of times, but in the midst of our country’s current crisis, it is beyond shame. words”.
The RAF Voyager plane is shared between Boris Johnson and the Royal Family. Once grey, it was painted white and given a Union Jack on the tail in a controversial £900,000 makeover.
News of the alleged “jolly” comes as Boris Johnson and his allies have launched a legal battle against a Commons inquiry into claims he lied to parliament about the party’s door.
The inquiry into Johnson by the all-party Privileges Committee has been denounced as a “witch hunt” and “kangaroo court” by his allies after the committee announced it could rule against him even if he did not deliberately misled parliamentarians. .