Up To 16 Hours: British Airways' 10 Longest Nonstop Flights From London [2026]

British Airways is the world's fifth-largest long-haul operator by number of flights. Only United Airlines, Emirates, Qatar Airways, and Delta Airlines have more long-haul services. Between now and the end of October, BA has an average of 95 daily long-haul departures from London, up from 91 year-over-year. And so, what are the airline's 10 longest routes using max block time? We take a look for today's video. Before we begin, the order is based on maximum block time, which is measured as chocks-off to chocks-on, and includes taxi time at both airports, the flight time, and a period for short delays. Unlike rankings that use straight lines slash great circle distances, the use of block time actually takes into account airspace restrictions. And so, in 10th spot is Heathrow to Mexico City with a block time of 12 hours flat. This service runs daily with a Boeing 787-9. 9th spot has a block time of 12 hours and 10 minutes and is the airline's flight from Cape Town back to Heathrow. Running up to 10 times weekly, the route sees a variety of aircraft, including the A350-1000, 777-300ER, and 200ER, and 787-9. 8th spot is Mauritius back to London Gatwick with a block time of 12 hours and 35 minutes. BA operates this three times weekly with the 777-200ER. In spot number 7 is Bangkok to Gatwick with a block time of 13 hours and 20 minutes. BA operates this up to six times weekly with the 777-200ER. 6th spot goes to the flight from Kuala Lumpur back to Heathrow. At 14 hours and 5 minutes, BA operates this daily with the 787-9. Halfway through our list, spot 5 goes to Singapore-Heathrow at 14 hours and 40 minutes. BA deploys either the 777-300ER or 787-9 between these cities. In 4th spot is Hong Kong back to Heathrow with a block time of 14 hours and 50 minutes. BA deploys the A350-1000 daily on this route, but previously used the A380. Spots 2 and 3 go to Tokyo-Haneda heading back to Heathrow, and Shanghai-Pudong heading back to Heathrow. They both have a block time of 15 hours flat. The Tokyo service is operated up to twice daily, either using the A350-1000 or 787-9, while the Shanghai service sees either the 777-200ER or 787-9 on a daily basis. And finally, in 1st place, at 15 hours and 35 minutes, is Heathrow to Santiago. BA operates this service three to four times per week, using the Boeing 787-9. The One World member has a reasonably long history of serving Santiago. For example, one-stop service existed via Buenos Aires between 1993 and the millennium, usually on the 747-400. BA returned to Santiago in 2017, but on a non-stop basis for the first time, using the 787-9. Influenced by Chile's fast-growing economy, it was the first time the UK had ever had non-stop flights to the South American nation. Until 2017, BA was exclusively using co-chair partners, especially sister carrier Iberia, to capture traffic between the two nations. Which of these flights have you been on? Let us know by leaving a comment.