
As an AI language model, I don’t have real-time data and cannot provide the exact rankings for 2023. However, as of my last update in October 2021, here were the top 10 longest flights in the world:
1. Singapore Airlines: Singapore to Newark, USA – approximately 18 hours and 45 minutes
2. Qantas: Perth to London, UK – approximately 17 hours and 20 minutes
3. Qantas: Sydney to Dallas, USA – approximately 17 hours and 5 minutes
4. Emirates: Auckland, New Zealand to Dubai, UAE – approximately 17 hours and 5 minutes
5. United Airlines: Auckland, New Zealand to Houston, USA – approximately 17 hours and 5 minutes
6. Qatar Airways: Auckland, New Zealand to Doha, Qatar – approximately 17 hours and 5 minutes
7. Singapore Airlines: Singapore to San Francisco, USA – approximately 16 hours and 40 minutes
8. Etihad Airways: Abu Dhabi, UAE to Los Angeles, USA – approximately 16 hours and 30 minutes
9. United Airlines: Singapore to Los Angeles, USA – approximately 16 hours and 20 minutes
10. Etihad Airways: Abu Dhabi, UAE to Dallas, USA – approximately 16 hours and 20 minutes
Please note that airlines frequently adjust their routes and flight schedules, so this information might change. Therefore, it’s best to consult up-to-date sources for the most accurate and current information on the longest flights.