These routes cross oceans, continents, and multiple time zones, putting even seasoned travelers’ endurance to the test.

An Airbus aircraft recently spent more than 24 hours and 24 minutes in the air during a nonstop flight from Melbourne to Toulouse, covering around 23,000 km. However, this was a test operation rather than a commercial passenger service.

Among flights available to book, Singapore Airlines’ New York–Singapore service remains the world’s longest scheduled nonstop passenger route. Stretching for more than 15,000 km, the journey takes about 18 hours and 40 minutes on average.

Still, several other services also push the boundaries of modern long-haul aviation.

Top 10 longest scheduled nonstop passenger routes

1. New York – Singapore

• Airline: Singapore Airlines

• Distance: 15,400 km

The world’s longest scheduled nonstop passenger flight links JFK Airport in New York with Singapore Changi Airport. Depending on winds, the journey can last close to 19 hours.

2. Newark – Singapore

• Airline: Singapore Airlines

• Distance: 15,300 km

Singapore Airlines’ route from Newark to Singapore is only a few kilometers shorter than its service departing from John F. Kennedy Airport.

3. Auckland – Doha

• Airline: Qatar Airways

• Distance: just over 14,500 km

This service connects New Zealand with Qatar’s capital, making it one of the longest direct routes between Oceania and the Middle East.

4. London Heathrow – Perth

• Airline: Qantas

• Distance: 14,500 km

This route is also among those expected to face temporary adjustments amid airspace disruptions in the Middle East in 2026.

5. Dallas – Melbourne

• Airline: Qantas

• Distance: 14,400 km

This nonstop service is one of the longest passenger routes linking the United States and Australia.

6. Paris Charles de Gaulle – Perth

• Airline: Qantas

• Distance: just over 14,200 km

7. Auckland – New York (JFK)

• Airlines: Air New Zealand and Qantas

• Distance: 14,200 km

Air New Zealand introduced its direct New York service in 2022, while Qantas joined the route nearly a year later. Before nonstop flights became available, passengers traveling between the two cities had to make at least one connection, often through the United States or Asia.

8. Auckland – Dubai

• Airline: Emirates

• Distance: just over 14,100 km

This route is one of the world’s longest regular services operated with the Airbus A380, the largest passenger aircraft in service. Unlike the Auckland–JFK route across the Pacific, the Dubai flight heads west over the Indian Ocean, connecting New Zealand and the Middle East in a single journey.

9. Mexico City – Shenzhen

• Airline: China Southern Airlines

• Distance: 14,100 km

This route crosses the Pacific Ocean between Mexico City and Shenzhen in southern China. Launched on May 11, 2024, it operates three round trips per week using Airbus A350 aircraft.

• 10. Los Angeles – Singapore

Airline: Singapore Airlines

Distance: 14,100 km

Rounding out the list is Singapore Airlines’ nonstop flight from Los Angeles to Singapore, which takes approximately 17 hours and 40 minutes.