Supermarket chain Lidl, which specialises in weekly offers, has teamed up with Air Berlin to sell vouchers for flights within the UK and to Europe for £19 one-way during the week of September 5-12. Vouchers can be used for flights listed at airberlin.com/lidluk, to destinations such as Stansted, Glasgow, Manchester and Belfast, and 25 European cities such as Berlin, Vienna, Zurich, Copenhagen, Palma and Rome.

Flights must be booked by October 4 but can be taken on any date from September 6 until next March, subject to the flight not being sold out. Oh, and you don't need to buy any Lidl products to purchase the vouchers.