For the last six weeks, there has been one reason at least to put away the razor blade - a weekly appointment with Cabin Pressure, one of the funniest sitcoms ever to air on the radio.

It is always a puzzle to me as to why I sit through so much comedy with a 'We are not amused' expression when I find most of what goes on in real life belly-achingly diverting. Similarly, it is almost impossible to analyse the secret of good comic writing but John Finnemore's script for the six-parter had it in spadefuls.

So Finnemore, who has also written for Dead Ringers and Mitchell and Webb, had his characters with incompetence ranging against dry wit, and his landscape, that surreal world in the sky which is an airliner in transit. It could still have all gone wrong but his ear for a comic retort was equal to his instinct for a comical situation. The result was a six-week abdominal workout for listeners and, I hope, a recommission for Pozzitive Productions.

Moira Petty, The Stage, 11th August 2008

I gave the show a brief mention a few weeks ago, but now its run has finished, it's time to give Cabin Pressure its due. Its first episode was, I said, flawless. Nothing can be flawless for ever, but the writing and performances in this tight comedy have been exceptional. Let me put it like this: this is the only programme that has kept me close to a radio at 11.30 every Wednesday morning. Never mind Listen Again - you want to catch this as soon as you can.

The setting might be novel - a charter plane, with its skeleton crew of misfits - but the writing obeys pretty much all the necessary rules of classic British sitcom writing, which are simple. In fact, students of the art form would do well to listen to it and take notes. You need little more than an inverted class relationship, a sense of failure, an idiot, and a scary authority figure. What writer John Finnemore has done as well is to add, without tilting things off balance comedy-wise, some depth to the characters.

So the dragon of a boss, played by Stephanie Cole, is revealed to be scared of becoming a 'little old lady'; and the wonderfully supercilious Jeeves/Sergeant Wilson figure, the man who should be Captain but isn't (a perfect performance by Roger Allam), is shown to have weaknesses of his own. The show deserves an award.

Nicholas Lezard, The Independent, 10th August 2008

The fourth edition of this five-star sitcom opens with what is now a running joke on how the budget airline crew either don't know or don't care about the technicalities of taking off, flying or landing.

I've listened every week, expecting it to crash land but John Finnemore's writing flies in first class. And then there's Roger Allam's performance as the bitter first officer who despises his captain. He is to sarcasm and sneering what Rowan Atkinson's Blackadder was to, well, sarcasm and sneering. Radio sitcom success stories are rare: let's hope this one's in from the long haul.

Jane Anderson, Radio Times, 23rd July 2008

I can recommend an excellent new comedy from Radio 4: Cabin Pressure, about the trials and misfortunes of a budget airline. Well, not really an airline, as the company's supremo Carolyn explains to her hapless captain, for you cannot arrange one plane in a line. 'If anything, it's an airdot.' This show makes great use of both the misery of failure and the mystery of flying. (There is an excellent running joke about how no one really knows how planes stay in the air.) I cannot find a single flaw in it. So top marks.

Nicholas Lezard, The Independent, 6th July 2008

The fear and joys of flying have been a comedy staple for decades, and every joke it is possible to make has probably been made. The challenge is to tell the old jokes in a new way. So step forward, experienced wordsmith (Dead Ringers, That Mitchell and Webb Sound) John Finnemore, with this new six-part sitcom about a one-plane outfit run by an autocratic divorcée (Stephanie Cole, doing her usual posh bully bit).

Her aircraft has two pilots, one a jaded cynic with a dodgy past who can, though, actually fly (played to worldweary perfection by Roger Allam) and one who seemed to have got his wings through a correspondence college (Benedict Cumberbatch, showing he can do situation comedy as well as he does everything else in the thesp game).

Chuck in Finnemore himself as Cole's keen but dim son-of-all work, plus an unusually high level of well-researched technical information about flying, and you have a half-hour that flies by (fnaarg fnaarg).

Chris Campling, The Times, 2nd July 2008

John Finnemore's new situation comedy has the benefit of a superb cast. Roger Allam, Stephanie Cole and Benedict Cumberbatch give their all to this story of a small charter airline whose single plane is flown by one blasé old know-it-all (Allam) and one fiercely competitive young thruster (Cumberbatch). The whole shebang is owned by a fearsome divorcée (Cole) who has come by the plane in a divorce settlement. Her other inheritance is a dim son (played by the author) whose meek optimism is amply reflected in the laughter from the studio audience.

Gillian Reynolds, The Telegraph, 2nd July 2008

Well-defined characters, strong casting and great writing do a good sitcom make. Sounds easy, but few get it right. I am, therefore, delighted to announce that this new series is so funny that I listened to it three times in a row, laughing more loudly each time at the lines I now knew were coming.

It's set in a small airline company staffed by two pilots and run by a forbidding 60-something woman who, one of her staff suggests, sharpens rather than brushes her teeth in the morning. Roger Allam's character is on a par with Basil Fawlty as the embittered pilot on his way down.

Jane Anderson, RadioTimes, 2nd July 2008