On this page (5 sections)
The route in one look
London Gatwick (LGW) flies non-stop to Cancun International Airport (CUN) on Mexico's Caribbean coast, and the far end is unambiguous: Cancun has one airport, and it is the gateway for the whole Riviera Maya, including Playa del Carmen and Tulum. The great-circle distance is 7,977km, about 4,960 miles, which makes this one of the longer routes on Gatwick's board and comfortably the longest of the airport's leisure staples.
The flight time is not symmetrical, and it is worth understanding why before you plan a connection at either end. Westbound to Cancun takes about 10 hours 30 minutes to 11 hours, because the aircraft is flying against the prevailing high-altitude winds. Eastbound to Gatwick is usually shorter, often by close to an hour, because those same winds are behind it. The gap widens in winter when the jet stream runs fastest. A timetable that shows an 11-hour outbound and a 9 and a half hour return is not a misprint.
Distance also decides what a bad day is worth. At close to 8,000km this route sits in the top UK261 band, so a delay of four hours triggers the airline's duty to feed you and, if the wait runs overnight, to put you up. An arrival more than four hours late for a reason within the airline's control carries £520 per person, reduced to £260 if you land between three and four hours late. Those are the highest passenger-rights figures that apply to anything flying from Gatwick, and on a twice-daily-at-best route the practical remedy for a cancellation is often a long wait rather than a quick rebooking.
Who flies it: two airlines, two different products
British Airways and TUI Airways are the direct operators, and they sell genuinely different things. British Airways flies Cancun daily through the winter season from the South Terminal, using the Boeing 777-200ER. Its Gatwick long-haul fleet of 12 aircraft carries a three-class cabin, with Club World, World Traveller Plus and World Traveller, and the in-flight service matches what the airline offers from Heathrow. The one difference worth knowing is that the existing Gatwick 777s are not being retrofitted with the newer Club Suite business cabin, so the business class on this route is the older layout. British Airways confirmed in February 2026 that Gatwick will get Club Suite eventually, on brand-new Boeing 787-10s replacing the 777-200 fleet from 2029.
TUI Airways flies the route on Boeing 787 Dreamliners and comes at it from the holiday side. Most of its seats go inside package holidays to the Riviera Maya rather than as flight-only tickets, though flight-only is sold. For a family booking flights and an all-inclusive together, TUI is usually the cheaper route to Mexico; for anyone wanting a flat bed, a lounge and a flexible ticket, British Airways is the one. The full carrier list with terminals is on airlines at Gatwick, and today's actual departures are on the departures board.
Two carriers is thin cover for a route this long, and it is the honest weakness of flying Cancun from Gatwick. There is no third airline to absorb a cancellation, and a missed departure can mean waiting a day rather than a few hours. If your trip has a fixed start, a cruise embarkation or a wedding, build in a day of slack at the front. The delays and cancellations guide sets out what the airline owes you when that goes wrong.
When to fly: the hurricane season is the whole story
Cancun has the sharpest seasonal shape of any leisure route from Gatwick, and one factor drives it. The Foreign, Commonwealth and Development Office states that hurricane season in Mexico normally runs from June to November, bringing tropical storms, floods, landslides and disruption to transport on both coasts. Cancun is on the Caribbean side, squarely inside that window, and the risk peaks towards the late summer and early autumn rather than at the start.
The result is a fare curve that inverts what people expect. The cheapest flying is in the late summer, exactly when the weather risk is highest and the humidity is at its worst. December to April is the dry season, the reliable one, and the expensive one: British Airways runs the route daily through those months for a reason, and Christmas and Easter are the sharpest peaks of the year. The value window is May and early June, after the rains have not yet started and before the school holidays land, or late November once the season closes and before the Christmas rates begin.
If you do fly inside hurricane season, the risk is manageable rather than reckless: serious storms are not frequent, the resorts are built and staffed for them, and the airlines rebook when a system closes the airport. Travel insurance that actually covers weather disruption is the part people skip. Check the FCDO travel advice for Mexico before booking and again before flying, and take the cheaper fare knowing what you have bought.
Time of day is mostly decided for you. Long-haul departures to the Caribbean and Mexico leave Gatwick in the morning so they arrive in daylight local time, Cancun being six hours behind British Summer Time. A 09:00 departure from Gatwick puts you on the ground in the early afternoon with the day still usable, which is why the morning slot is the one that sells.
At the airport: check the flight number, not the airline
This is one of the Gatwick long-haul leisure routes where the two operators can leave from different buildings, and it catches people out. British Airways flies from the South Terminal, always. TUI splits its Gatwick flying by flight number rather than by destination: flights with a BY prefix go from the South Terminal, flights with a TOM prefix from the North Terminal. Two people booked on different TUI flights to the same resort can therefore need different terminals, so read the flight number on the booking and confirm it against the airline-by-airline terminal lookup before you travel.
Getting it wrong is recoverable but costly on a long-haul morning. The free shuttle runs 24 hours and takes about two minutes, but with hold bags and a family, allow ten minutes door to door and more at peak. Arriving by train puts you in the South Terminal, since the station is inside that building.
Long-haul changes the timings. Gatwick's blanket advice is two hours before departure, but long-haul check-in desks open about four hours ahead and the queues for a full 777 or 787 are the longest in the terminal. Three hours is the sensible target, more in the school holidays. British Airways closes long-haul check-in 60 minutes before departure, wants you at the gate 20 minutes before, and expects you through security at least 35 minutes ahead. The check-in guide has the deadlines by carrier, and both airlines run a day-before bag drop at Gatwick that is genuinely worth using on a morning departure.
Two more things specific to a flight this long. Lounge access is worth more on a 10 hour 30 minute departure than on a two-hour one, and British Airways runs its own lounges in the South Terminal for eligible passengers, with paid alternatives covered on the lounge guide; Fast Track security starts from £6 booked ahead. And on the way home, remember the UK customs allowances apply the moment you land: £390 of goods, plus the separate alcohol and tobacco limits set out on the customs guide. Mexican duty free is cheap enough that people overshoot without meaning to.
Who it suits, honestly
For a Riviera Maya holiday booked as a package, this route is the obvious way to go. Flying direct from Gatwick removes a connection from a long day, TUI's Dreamliners fly straight into the resort chain it sells, and for a family the flight-and-hotel price beats assembling the parts. If you live in the south east and you are going to Cancun, there is no good argument for connecting through Europe or the United States instead.
For anyone buying a lie-flat seat, the honest answer is more mixed. British Airways flies the route daily with a proper three-class cabin, but the current Gatwick 777s keep the older business class rather than the newer Club Suite, so until the new 787-10s arrive from 2029 the seat is a step behind the equivalent Heathrow flight. If the cabin matters more than the airport, that is a real trade rather than a technicality, and it is worth comparing a one-stop routing from Heathrow before booking.
The case for not flying this route at all comes down to two things. If your dates fall in the late summer, you are buying the cheapest fare of the year and the highest weather risk, and that is only a good deal if your insurance and your temperament can absorb a disrupted week. And if a firm commitment waits at the far end, two airlines on a route this long is thin cover: leave a day of margin, or accept that a cancellation means a day lost. For an ordinary winter holiday with flexible plans, book the direct flight, take the morning departure, and give the airport three hours.