All economy - and it is noticeable. They are very strict about luggage weight and size and weight of carry-on baggage and the seats are quite close together.

However, the staff are well trained, friendly and efficient. I have a problem with food allergies and the airline provided me with eatable meals both on the outward and return journeys. This is something that the larger airlines are completely unable to handle.

I have flown with Monarch several times and have noticed they put a tremendous effort into sticking to schedule. OK, it's not First Class but it is still a damn well-run airline.