RYANAIR has a secret way you can make sure no-one sits next to you on the plane. There is nothing worse than arriving at an empty row, only for another passenger to take the seat next to you at the last minute. But a number of airlines are lettering passengers book a second seat to avoid this.

Ryanair 's 'comfort seat' means you can make sure no one sits next to you. The website explains: " Firstly, purchase two full-fare flight tickets. Book the first ticket in your name.

"Then for your second ticket, enter ‘EXTRA’ as the first name and ‘COMFORT SEAT’ as the last name. Read more on plane seats "‘EXTRA COMFORT SEAT’ will then be added to your reservation." The airline explains that the travel details will then be added for both you and your seat.

Of course, this costs the same as two tickets, as it isn't discounted in any way. But it is a great way for passengers who want some more space, especially if the Ryanair flights are cheap. Most read in Travel Passengers who want a spare seat next to them cannot book two in their name, as it has to be a separate name to keep it.

It's not just Ryanair who allow passengers to book a second seat. Qantas has a "neighbour free" seating options in economy. Passengers will be emailed from 48 hours before their seat if eligible, with prices ranging from £17-£38.

Emirates has a similar system , where passengers can book entire rows for themselves. This can only be done at the airport check out counter, but you could get whole ro.