The ticket that looks cheap
The headline fare on the London to Malaga run has been sitting at £29.99 for a midweek departure in late September, which is what the airline wants you to see first. By the time you have added a cabin bag that actually fits the sizer, not the one you hope fits, and selected a seat that is not in the middle of the back row, that same booking is hovering around £75. The gap between those two numbers is the entire game on this route, and it has not narrowed in the five years these carriers have been flying it.
Gatwick is the airport that matters here, since that is where the low-cost departures leave from, and it is worth remembering the airport is not Heathrow, which means a train journey from Victoria that runs about thirty minutes when the service behaves. The flight itself is a bit under three hours, roughly 1,450 km of sea and then the Spanish coast appearing on the left, which sounds pleasant until you are doing it for the third time in a month. For a first-timer, the advice is to look at Direct flights London — Malaga and sort by total price, not by the fare column, because that is where the truth lives.
What the extras actually cost
The seat selection is the one that annoys me most because the free allocation is always the middle seat at the back, and on a 3-3 layout that means being sandwiched between two people who have also declined to pay. I paid the £25 for extra legroom on an early October flight last year and got a seat by the emergency exit with genuinely useful space, which made the 2h 45m flight feel like a different product. The cabin bag charge is the one that catches families, who turn up with bags that passed at Luton last summer and now find the sizer at Gatwick has a different opinion.
When the price moves
June and August are the brutal months, with fares touching £140 one-way even booked a month ahead, while the second half of November and all of January drop to the £30 range because nobody is going to the Costa del Sol for a beach holiday in winter. School half-term in February pushes prices up about 60% for that specific week, and the Easter fortnight in April is worse, because the British school calendars align and the airlines know exactly when they do. Buying on a weekday does not matter, which is the myth that refuses to die, but flying on a Tuesday or Wednesday rather than a Friday can cut £40 off the same seat—check availability here before you book.
The booking window that works here is three to six weeks for the cheap season and eight to twelve for summer, beyond which the algorithms start hiking prices on a rising curve. One thing worth knowing: the price checker that shows a whole month of fares is your friend, because the spread between a Tuesday and the following Saturday is often wider than any strategy you could invent. For the total picture on a specific date, the habit that saves money is checking availability for the whole week before committing to a day.
The train is not the answer
You can get from London to Malaga by rail for about £180 and twenty hours including the change in Paris and again in Madrid, which makes it a curiosity rather than a genuine alternative. The ferry to Santander plus a drive is cheaper per person for a family of four and takes two days, which is a holiday in itself rather than a way to get to one. For a long weekend, flying wins every time, and the real decision is not how you get there but which week you go.
What decides the whole cost is the calendar, and once you have accepted that, the rest is arithmetic.
