For years, Qantas Airways has pursued the ambition of launching a direct flight connecting Australia and London—a journey spanning more than 20 hours and set to redefine ultra-long-haul travel. In 2025, this vision is now reality, as Qantas operates its record-breaking nonstop Perth to London service, leveraging cutting-edge aircraft technology for unparalleled range and passenger comfort.
These extraordinary flights are made possible thanks to the latest advancements in aviation, with aircraft like the Airbus A350-1000ULR and Boeing 787-9 Dreamliner setting new standards for efficiency and endurance. Qantas CEO Alan Joyce’s challenge to Airbus and Boeing catalyzed this new era of ultra-long-haul routes, creating new opportunities for direct connectivity between far-flung destinations.
With modern jets offering improved fuel efficiency and passenger amenities, airlines are once again embracing marathon routes that were previously deemed impractical. Below, discover the definitive list of the world’s longest commercial flights by distance, showcasing the ultimate in global connectivity and luxury air travel in 2025.
Singapore Airlines’ nonstop service from New York’s JFK to Singapore Changi remains the world’s longest commercial flight in 2025. Spanning 9,537 miles (15,349 km) and traversing 12 time zones, this flagship route is flown by the Airbus A350-900ULR, offering a journey time of approximately 18 hours and 50 minutes. Passengers enjoy industry-leading comfort, including lie-flat seating and curated wellness menus designed for ultra-long-haul travel.
1. Auckland to Doha, Qatar Airways
Qantas’ historic Perth to London route covers 9,010 miles (14,500 km), connecting Australia and the UK directly in under 18 hours. Operated by the advanced Boeing 787-9 Dreamliner, this route has garnered global acclaim for its innovative cabin design, focus on passenger well-being, and seamless travel experience between the continents.
Qatar Airways’ Auckland to Doha nonstop journey ranks among the globe’s longest, stretching 9,032 miles (14,535 km). The flight, serviced by the Boeing 777-200LR, takes about 17 hours and 30 minutes, crossing 10 time zones. Passengers are treated to award-winning Qsuite business class and celebrated Oryx One inflight entertainment.
2. Auckland to Dubai, Emirates
Qantas connects Texas and Australia with its nonstop Dallas/Fort Worth to Sydney service. This 8,578-mile (13,805 km) journey is operated by the Airbus A380, providing a flight time of roughly 17 hours. The route is renowned for its spacious premium cabins and expertly curated Australian cuisine.
United Airlines’ direct Houston to Sydney route covers 8,596 miles (13,834 km) with a Boeing 787-9 Dreamliner. Travelers spend up to 17 hours in the air, enjoying Polaris business class service and a thoughtfully designed cabin environment tailored for extended journeys.
3. LA to Singapore, United Airlines
Both Singapore Airlines and United Airlines operate the popular nonstop route between San Francisco and Singapore, covering 8,446 miles (13,593 km). Singapore Airlines deploys the Airbus A350-900, while United uses the Boeing 787-9 Dreamliner, with flight times averaging 16 hours and 40 minutes. Passengers benefit from modern amenities and leading inflight entertainment options.
Delta Air Lines’ Johannesburg to Atlanta route is one of the world’s most extensive, spanning 8,439 miles (13,584 km). The Boeing 777-200LR completes the journey in approximately 16 hours and 40 minutes, offering Delta One suites and a robust selection of inflight dining and entertainment.
4. Dallas to Sydney, Qantas
Emirates connects Dubai and Los Angeles with its renowned A380 service, covering 8,339 miles (13,420 km) in just over 16 hours. The airline is celebrated for its lavish onboard lounges, private suites, and exceptional service standards, making this a favorite for discerning travelers.
Saudia’s direct Jeddah to Los Angeles route, operated by the Boeing 777-300ER, spans 8,332 miles (13,408 km). The journey takes approximately 16 hours, with guests enjoying modern cabin comforts and a diverse selection of halal dining options.
5. Johannesburg to Atlanta, Delta Air Lines
Etihad Airways’ nonstop service from Abu Dhabi to Los Angeles covers 8,390 miles (13,502 km) and is flown by the Boeing 787-9 Dreamliner. The flight duration is just over 16 hours, with passengers experiencing The Residence, First Apartments, or Business Studios—showcasing Etihad’s commitment to luxury and innovation in air travel.