Written By: Diego Castillo
Published: July 9, 2025

The longest flight in the world is Singapore Airlines SQ23 from New York JFK to Singapore, taking approximately 18 hours and 50 minutes. This ultra-long-haul route spans over 9,500 miles across multiple continents and time zones.

Airlines now operate numerous long routes exceeding 16 hours of flight time. Modern aircraft, such as the Airbus A350 and Boeing 787, enable these record-breaking journeys with improved fuel efficiency and enhanced passenger comfort.

This article explores the top 10 longest flights globally, analyzing their routes, airlines, duration, and passenger experiences. We’ll also discuss safety measures and future aviation developments for long travel.

Top 10 Longest Flights In The World

These routes represent aviation’s pinnacle, connecting distant cities with non-stop flights. Airlines use advanced aircraft technology to make these marathon journeys possible and comfortable.

RouteAirlineDuration
New York (JFK) → Singapore (SIN)Singapore Airlines SQ23~18 h 50 m
Newark (EWR) → Singapore (SIN)Singapore Airlines SQ21~18 h 45 m
Los Angeles (LAX) → Singapore (SIN)Singapore Airlines SQ37~17 h 40–50 m
Perth (PER) → London (LHR)Qantas QF9~17 h 45 m
Dallas (DFW) → Melbourne (MEL)Qantas QF22~17 h 35 m
New York (JFK) → Auckland (AKL)Qantas / Air New Zealand~17 h 30 m
Auckland (AKL) → Doha (DOH)Qatar Airways QR921~17 h 15 m
Perth (PER) → Paris (CDG)Qantas QF33~17 h 15 m
Auckland (AKL) → Dubai (DXB)Emirates EK449~17 h 5 m
Shenzhen (SZX) → Mexico City (MEX)China Southern CZ8031~16 h 20 m

These flights showcase modern aviation’s ability to connect global destinations with minimal stops, revolutionizing international travel and business connectivity.

1. New York (JFK) → Singapore (SIN)

AircraftAirbus A350-900ULR
Distance~9,542 miles
Average Fare$1,100 – $9,800

Singapore Airlines SQ23 crosses 12 time zones during its 18-hour, 50-minute journey, offering business and premium economy configurations. Multiple meal services and specialized cabin lighting help passengers adjust to the significant time differences, minimizing the effects of jet lag.

New York (JFK) → Singapore (SIN)
Source: Travellerspoint

Wi-Fi connectivity and extensive entertainment systems keep passengers engaged throughout the marathon flight. Daily operations make it accessible for business travelers, while sunrise appears twice during the westbound journey across multiple continents.

2. Newark (EWR) → Singapore (SIN)

AircraftAirbus A350-900ULR
Distance9,542 miles
Average Fare$1,000 – $8,000

Operating since 2018, Singapore Airlines SQ21 covers 9,539 miles across 10-12 time zones in approximately 18 hours and 45 minutes. Advanced air filtration systems and cabin pressure optimization help reduce passenger fatigue during extended flight durations.

Premium cabin configurations feature lie-flat seats and personalized service designed specifically for ultra-long route comfort. Daily frequency provides consistent connectivity between the Northeast United States and Southeast Asia’s major hub.

3. Los Angeles (LAX) → Singapore (SIN)

AircraftAirbus A350-900
Distance8,771 miles
Average Fare$900 – $7,000

Singapore Airlines operates five weekly flights crossing 15 time zones during the 17-hour 40-minute Pacific journey. Full-service meals and premium cabin amenities ensure passenger comfort throughout the extended flight duration across the vast Pacific Ocean.

Flight timing allows optimal connections to other Asian destinations from Singapore’s hub. West Coast departure provides convenient access for travelers from California, Nevada, and surrounding states seeking direct Asian connectivity.

4. Perth (PER) → London (LHR)

AircraftBoeing 787-9 Dreamliner
Distance9,024 miles
Average Fare$2,000 – $16,000

Qantas QF9 operates daily, crossing 7 time zones during the 17-hour 45-minute journey from Australia’s west coast to Europe. Boeing 787-9 Dreamliner technology reduces jet lag effects through improved air quality and optimized cabin pressure management.

Arriving in London in the morning facilitates a better adjustment to local time zones. A direct connection eliminates traditional Middle Eastern stopovers, providing seamless travel between Australia and the UK for both business and leisure travelers. Business travelers should be aware of the different types of visas for international business travel planning.

5. Dallas (DFW) → Melbourne (MEL)

AircraftBoeing 787-9 Dreamliner
Distance9,004 miles (≈ 14,493 kilometers)
Average Fare$1,700 – $26,000

Qantas QF22 operates three weekly flights crossing 16 time zones during its 17-hour, 35-minute trans-Pacific duration. QF22’s trans-Pacific flight provides full entertainment options through seatback AVOD and personal-device streaming on supported aircraft.

Dallas (DFW) → Melbourne (MEL)
Source: Travellerspoint

Advanced aircraft technology ensures passenger safety during the extended over-water flight path. Connection facilitates tourism between North America and Australia’s cultural capital, Melbourne. While Melbourne can be pricey, explore the cheapest cities in the world to live in for more budget-friendly travel options.

6. New York (JFK) → Auckland (AKL)

AircraftBoeing 787-9 Dreamliner
Distance8,842 miles
Average Fare$1,100 – $7,000

Air New Zealand operates three weekly flights that cross 17 time zones during the 17-hour, 35-minute journey. Premium cabin configurations and features, such as seatback touchscreens, movies, TV shows, music, and in-flight Wi-Fi, provide passengers with comfort during the lengthy flight between North America and New Zealand.

Specialized meal services and cabin lighting systems help passengers adjust to significant time zone changes. The connection links North America’s financial center with New Zealand’s largest city.

7. Auckland (AKL) → Doha (DOH)

AircraftAirbus A350-1000
Distance9,041 miles
Average Fare$900 – $5,000

Qatar Airways QR921 operates daily, crossing 8 time zones during the 17-hour, 15-minute flight duration. The A350-1000 features advanced cabin technology and spacious seating configurations designed to enhance passenger comfort during extended flights.

Flight timing allows connections through Qatar’s hub to numerous European and African destinations. Connection provides New Zealand travelers with convenient access to Middle Eastern and European markets through Doha’s modern facilities.

8. Perth (PER) → Paris (CDG)

AircraftBoeing 787-9 Dreamliner
Distance8,878 miles
Average Fare$1,200 – $6,000

Qantas operates three weekly flights crossing 7 time zones during the 17-hour, 15-minute journey. Boeing 787 fuel efficiency makes the long route economically viable for regular operations between Australia and Europe.

Direct connection eliminates traditional stopovers between Australia and Europe’s cultural capital, reducing total travel time and simplifying transit logistics. The route highlights the growing demand for seamless intercontinental travel supported by next-generation aircraft capabilities.

9. Auckland (AKL) → Dubai (DXB)

AircraftAirbus A380-800
Distance8,834 miles
Average Fare$1,000 – $5,500

Emirates EK449 operates daily, using the world’s largest passenger aircraft, which crosses eight time zones during the 17-hour 5-minute flight. The A380 offers multiple cabin classes and extensive amenities to ensure passenger comfort during extended journeys.

The route provides a vital link between New Zealand and over 140 global destinations via Emirates’ Dubai hub, streamlining international travel with efficient connections and world-class in-flight services.

10. Shenzhen (SZX) → Mexico City (MEX)

AircraftAirbus A350-900
Distance8,789 miles
Average Fare$800 – $4,500

China Southern CZ8031 operates twice weekly, crossing 14 time zones during the 16-hour, 20-minute journey. The flight connects Asia directly with Latin America, facilitating increased trade and cultural exchange between the two rapidly growing economic regions.

Shenzhen (SZX) → Mexico City (MEX)
Source: Travellerspoint

Advanced aircraft technology ensures passenger safety and comfort during the transcontinental journey across the Pacific Ocean. Growing aviation connections between Asia and the Americas reflect increasing business relationships between both regions.

Safety Parameters Used In Long Flights

Long flights follow strict safety protocols, including crew rest, backup systems, emergency procedures, maintenance, and medical readiness, to ensure safety and reliability during extended operations across multiple time zones.

Key Safety Measures in Long-Haul Flights:

  • Flights follow international safety regulations to protect passengers and crew.
  • Airlines schedule mandatory rest periods for flight crews.
  • Aircraft are equipped with backup systems for critical operations.
  • Regular maintenance checks ensure the plane is safe to fly.
  • Navigation and communication systems have redundancies for reliability.
  • Medical equipment and trained staff are onboard to handle emergencies.

With such lengthy flight durations and complex scheduling, missing these flights can be particularly problematic. Passengers should arrive well in advance and understand what actions to take if they miss their flights. 

Future Outlook Of Aviation

Aviation technology continues advancing, enabling even longer non-stop flights with improved passenger comfort and fuel efficiency. New aircraft designs and engine technologies promise to further extend flight ranges.

Airlines are planning routes exceeding 20 hours of flight time, connecting previously unreachable city pairs. These developments will transform global travel patterns and business connectivity in the coming decades.

Qantas Project Sunrise will operate direct, non-stop flights from Sydney to London and New York. These ultra-long-haul routes aim to reduce travel time by up to 4 hours compared to current one-stop flights. 

The project uses the Airbus A350-1000, selected for its advanced technology. The first plane is scheduled to arrive in mid-2026, marking a new era in Australian air travel with enhanced passenger comfort.

Conclusion: Singapore SQ23 Airlines Is The Longest Flight In The World!

The Singapore SQ23 flight from New York (JFK) to Singapore (SIN) is the longest in the world. These ultra-long flights connect distant cities nonstop, saving passengers time while offering great comfort and service throughout the journey.

Airlines use advanced planes and improve passenger comfort on these flights. In the future, even longer routes will make global travel easier and faster, bringing the world closer together.

For travelers, these long flights offer a unique experience, crossing multiple time zones. Choosing premium seats helps with comfort, and planning for jet lag makes the trip more enjoyable overall.

FAQs

Which airline operates the longest flight in the world? 

Singapore Airlines operates the world’s longest flight, SQ23, from New York’s JFK Airport to Singapore, taking approximately 18 hours and 50 minutes to complete the journey.

How many time zones are crossed during the longest flight? 

The longest flights typically cross between 12 and 17 time zones, depending on the route direction and the geographic path taken across continents and oceans.

Are the long flights safe? 

Long flights maintain the same safety standards as shorter routes, with additional safety protocols, redundant systems, and enhanced crew training specifically for long-haul operations.

How much does it cost to fly on the world’s longest flight? 

Prices range from $1,200 for economy class to over $8,000 for business class, varying by season, demand, and booking timing for these premium ultra-long-haul routes.

Are there Wi-Fi and entertainment systems onboard in long flights? 

Most flights offer high-speed Wi-Fi connectivity, extensive entertainment libraries, and advanced cabin amenities designed to provide comfort and satisfaction during extended journeys.

About the Author

Diego is a curious traveler and culture lover who writes guides to help others explore the world more confidently. With a focus on practical advice and thoughtful planning, she shares tips for travel bookings, discovering new destinations, and all the details that make travel meaningful.

Scroll to Top