Via Wikipedia – the five longest passenger flights as measured by the great-circle distance circa June 2024 are:

1. Singapore Airlines flight SQ 23
   New York (JFK) to Singapore (SIN)
   Aircraft: A350-900ULR
   Scheduled Duration: 18 hours 50 minutes
   Distance: 15,349 km / 9,537 mi / 8,288 nmi

2. Singapore Airlines flight SQ 21
   Newark (EWR) to Singapore (SIN)
   Aircraft: A350-900ULR
   Scheduled Duration: 18 hours 45 minutes
   Distance: 15,344 km / 9,534 mi / 8,285 nmi

3. Qatar Airways flight QR 921
   Auckland (AKL) to Doha (DOH)
   Aircraft: A350-1000
   Scheduled Duration: 17 hours 15 minutes
   Distance: 14,535 km / 9,032 mi / 7,848 nmi

4. Qantas flight QF 9
   Perth (PER) to London – Heathrow (LHR)
   Aircraft: 787-9
   Scheduled Duration: 17 hours 45 minutes
   Distance: 14,499 km / 9,009 mi / 7,829 nmi

5. Qantas flight QF 22
   Dallas – Fort Worth (DFW) to Melbourne (MEL)
   Aircraft: 787-9
   Scheduled Duration: 17 hours 35 minutes
   Distance: 14,472 km / 8,992 mi / 7,814 nmi

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