Singapore Airlines Flight 21

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Singapore Airlines Airbus A340-500

Singapore Airlines Flight 21 was the longest regularly scheduled non-stop flight in the world, from 28 June 2004[1] until it was discontinued on 23 November 2013.[2] It flew from Newark Liberty International Airport (EWR) to Singapore Changi Airport (SIN), covering 9,534 miles (15,343 km) in about 18.5 hours flight time.[3] It was operated by an Airbus A340-500. Flight 21 was scheduled to take off from Newark at 23:00 EDT (11:00 SGT) and land in Singapore at 4:05 SGT (16:05 EDT).[4] Its return flight was Singapore Airlines Flight 22 from Singapore to Newark, which was the second-longest flight in the world, being scheduled to be fifteen minutes shorter due to prevailing high-altitude winds.

In October 2015, Singapore Airlines announced that it plans to relaunch the route to New York (not necessarily using Newark Liberty Airport) in 2018.[5]


In October 2012, Singapore Airlines announced that it would discontinue non-stop service to Newark and Los Angeles in 2013. As part of a deal announced with Airbus, the airline would sell back its five Airbus A340-500 aircraft to the aircraft manufacturer while ordering 5 extra Airbus A380 and another 20 Airbus A350 XWB aircraft.[6] The airline would continue serving Los Angeles via Tokyo-Narita as it had during the period with the non-stop flights, and while SIA no longer flies to Newark (before it launched the nonstop flights it flew to EWR via Amsterdam, the airline would continue to fly to the nearby John F. Kennedy International Airport, with a stop in Frankfurt.[7]

On 13 October 2015, Singapore Airlines announced that it had signed an agreement with Airbus to be the launch customer of a new version of the Airbus A350 XWB called the A350-900ULR (for "Ultra Long Range"), which according to the announcement would feature "all-new cabin products which are currently under development."[5] To that effect, the airline intends to convert seven of its current 63 A350 orders to the new version, and would use the new planes to resume non-stop service to Los Angeles and New York from 2018, when the new equipment's deliveries would start. As of 2016, there is no flight between SIN-New York non-stop flight. There is SIN (Singapore Changi Airport)-FRA (Frankfurt International Airport)- JFK (John F. Kennedy International Airport in New York) by SQ25, SQ26. The airline announced that non-stop flights between Singapore using Airbus A350 XWB aircraft and Singapore Airlines and the US might have conversation further then."[5]

Aircraft configuration[edit]

The plane used for the Singapore-Newark route was an Airbus A340-500. It had 14 cabin crew and six flight deck officers, each working four-hour shifts.[8]

The flight required 222,000 liters of fuel, 10 times the weight of the passengers. Critics said that while there would be reduced noise pollution due to a stop not being required, the nonstop flight would save little fuel due to the need to use more energy at the beginning of the flight to power its heavy load.[8]

The airline said that this route would save four hours off a one-stop service. However medical experts have expressed concerns of the 18-hour flight, in which passengers would breathe recycled air, and having a greater chance of picking up viral infections such as flu and colds on board. Furthermore, the heart and lungs would come under increased strain from a lower than usual supply of oxygen, with an enhanced risk of deep vein thrombosis (DVT) among people who fail to exercise frequently on board. The airline had installed special lockers on the aircraft to store the corpses of any passengers that died en route, since the flight's routing over the Pacific Ocean and the North Pole meant that there were few if any possible unscheduled stops.[8][9]

Singapore Airlines originally offered an Executive Economy Class on this flight. Seats in this class of travel were more spacious than ordinary Economy Class seats. However, SIA phased out this class of service in favor of 100-seat all-Business Class flights on the non-stop flights between Singapore and Newark or Los Angeles in 2008.[10]

Flight to the US[edit]

Singapore Airlines has 3 flights to the US, using Boeing 777 for SQ1,SQ2... SIN (Singapore Changi Airport) -HKG (HongKong International Airport) -SFO (San Francisco International Airport), Airbus 380 for SQ11, SQ12,SIN (Singapore Changi Airport) - NRT (Narita International Airport) - LAX (Los Angeles International Airport), Airbus A380 SIN (Singapore Changi International Airport) - FRA (Frankfurt International Airport) - JFK (John F. Kennedy International Airport in New York).


  1. ^ "Singapore Airlines beats its own long-haul record". 29 June 2004. Retrieved 17 December 2010. 
  2. ^ "SIA To Make Network Adjustments In Northern Summer Schedule" (Press release). Singapore Airlines. 18 December 2012. Retrieved 19 December 2012. 
  3. ^ "Singapore Air makes longest flight". CNN. 29 June 2004. Archived from the original on 1 July 2004. 
  4. ^
  5. ^ a b c "SIA To Re-Start Non-Stop Singapore-US Flights With New A350 Variant" (Press release). 2015-10-13. Retrieved 2015-10-17. 
  6. ^ Mayerowitz, Scott (24 October 2012). "Singapore Airlines to end world's longest flights". AP Worldstream. Retrieved 10 January 2016.  – via HighBeam (subscription required)
  7. ^ "SIA, Scoot to upgrade & expand fleet". Retrieved 24 October 2012. 
  8. ^ a b c Clark, Andrew (29 June 2004). "Record longest flight flies in the face of its critics". The Guardian (London). 
  9. ^ Clark, Andrew (11 May 2004). "Airline's new fleet includes a cupboard for corpses". The Guardian (London). 
  10. ^ "Singapore Airlines to Launch First All-Business Class Flights From USA to Asia" (Press release). Singapore Airlines.