If you're hoping to bag a last-minute summer holiday deal, a travel expert has some top tips that could save you a pretty penny. Hidden charges can often bump up the cost of your holiday, but Gavin Lapidus, director of eShores , has revealed some lesser-known tricks to help keep costs down. According to Lapidus, flying out between Monday and Wednesday is usually cheaper, and shifting your travel dates by just one day could reduce costs by 20 per cent.

But there are other ways to secure bargain flights and save on luggage costs too, reports the Mirror . Consider booking one-way tickets This doesn't mean buying a single ticket and emigrating, but it could be a clever way to save money on flights. Instead of booking a return flight, why not book two one-way tickets? This gives you the flexibility to mix and match airlines, so you're not tied to one carrier and their prices.

You'll have more flight options to choose from, at different times of the day to suit you. Just remember to check each airline's luggage requirements to ensure they're consistent. Instead of booking return flights, look at two one-way tickets (Image: Getty Images) If you're looking to upgrade your luggage before your next trip, luxury suitcase brand Antler is into the final days of its big summer sale with up to 40% off hand luggage bags .

It includes £68 off the best-selling Clifton Cabin Bag , which is the perfect size for use as a cabin bag on Jet2 and TUI flights and can also be used as a 'large cabin ba.