A travel company has revealed the cheapest time to fly and the most cost-friendly days to book trips in 2025. Travel site Expedia revealed in its 2025 Air Hacks report that Friday is the cheapest day to travel, while Sunday can be the most expensive, with a 26 per cent difference in ticket prices on average. Breaking it down, international travellers who depart on Friday instead of a Sunday can save up to 14 per cent.
For domestic flyers, Saturday is the cheapest day to fly, with travellers saving up to 18 per cent compared to flying on Monday, which is the most expensive day. Despite Sunday being the most expensive day for international passengers to fly, it is, in fact, the best day to open up your laptop and book your future flights. Expedia says that booking on the right day can make a difference to price.
The report says that travellers booking their flights on a Sunday can save up to 21 per cent on domestic flights compared to Mondays, and 22 per cent on international flights compared to Fridays. How far in advance you book can also play a part in knocking off a few pounds from the ticket price. Many believe that the further ahead you book a flight, the cheaper it will be – but Expedia has revealed that this is not always the case.
Booking too far in advance can actually cost travellers, the travel company said, while buying international tickets around 13 to 21 days out is usually the magic window for savings. Those who book in that time frame can spend up to eight p.