Airlines outline world's 10 longest nonstop passenger flights

Despite these complexities, the tables below detail the world's 10 longest nonstop service routes:

1. New York JFK to Singapore, Singapore Airlines, A350-900ULR: 19h 15m

2. Newark to Singapore, Singapore Airlines, A350-900ULR: 19h 10m

3. New York JFK to Auckland, Air New Zealand and Qantas, 787-9: 18h 05m

4. San Francisco to Bengaluru, Air India, 777-200LR: 18h 00m

5. Perth to London Heathrow, Qantas, 787-9: 17h 50m

6. Los Angeles to Singapore, Singapore Airlines, A350-900 (not the ULR): 17h 50m

7. Dallas/Fort Worth to Melbourne, Qantas, 787-9: 17h 45m

8. Houston Intercontinental to Sydney, United, 787-9: 17h 35m

9. San Francisco to Singapore, Singapore Airlines and United, A350-900 (Singapore Airlines), 787-9 (United): 17h 35m

10. San Francisco to Mumbai, Air India, 777-200LR: 17h 35m

United Airlines' service from Houston to Sydney, operational since January 2018, resumes for the northern winter season in October 2025. Initially paused in March 2020 due to the pandemic, the route has been served by retrofitted 257-seat 787-9 aircraft.

With a block time of up to 17 hours and 35 minutes, United's flight is the longest by a U.S. passenger carrier, although American Airlines' Dallas/Fort Worth to Brisbane and Delta Air Lines' Johannesburg to Atlanta flights are comparable.

According to the U.S. Department of Transportation, United carried approximately 45,000 passengers on its Houston-Sydney route last year with a 72% load factor. A significant portion of these travelers connected through Houston, with Newark-Sydney being the most popular connecting segment.