January is generally considered the cheapest month to travel abroad, as the vast majority of people will have done travelling in December ahead of Christmas and New Year. Demand is normally lower in January, which inevitably means cheaper flights and accommodation costs.

For travelers departing from the UK in 2026, January and November are generally the cheapest months to fly abroad. These "shoulder" periods fall immediately after the expensive Christmas holidays and before the peak winter ski or summer sun seasons, leading to a significant drop in demand. During these months, budget carriers like Ryanair and EasyJet frequently offer "seat sales" where flights to European cities like Prague, Lisbon, or Berlin can be found for as little as £20-£40 round-trip. If you are looking for a "summer" experience at a lower price, May and late September/early October offer the best value; the weather in the Mediterranean remains warm (often mid-20s), but prices are 30-50% lower than during the school summer holidays in August. To maximize savings in 2026, the "pro" strategy is to avoid any dates coinciding with "Half Term" weeks, as airlines typically double or triple their fares during these periods to capitalize on family travel demand.