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When Boeing formally launched the Boeing 787 Dreamliner program in 2004, following a massive order from All Nippon Airways (ANA), the goal was clear: design a widebody twin-engine jet that could open entirely new point-to-point routes that previously required either a stop or a much larger aircraft. That ambition paid off – and the world’s appetite for flying has only grown since.
According to the newest International Air Transport Association (IATA) predictions, the world will fly much more in the next few decades. Global air travel is expected to more than double by 2050, increasing from 9 trillion passenger kilometers in 2024 to about 20.8 trillion. This rising demand is why Simple Flying decided to look more closely at the seven longest Boeing 787 Dreamliner routes in the world. Using the latest Cirium data from 2026, this article examines each route’s distance, flight frequency, available seat miles, and other operational details.
7
San Francisco – Singapore
17 hours, 30 minutes
San Francisco to Singapore ranks seventh among the longest Boeing 787 routes in 2026, with an average stage length of 8,440 miles, according to 2026 data from Cirium, a source of aviation analytics. 
Singapore Airlines operates this route using the Boeing 787-10, which serves as an important long-distance connection between the US West Coast and Southeast Asia.
Cirium data shows that the route has 730 flights each year in both directions, which means there are about two daily departures going east and west. Over the year, this results in 187,610 seats offered and more than 1.58 billion available seat miles (ASMs), a common industry measure of passenger capacity multiplied by distance flown.
There are more than 1.58 billion ASMs, which shows how often and how far they are. That number is much higher than most of the other routes on this list, even though the San Francisco–Singapore corridor is only seventh in terms of stage length. The 787-10’s high seat count is the main reason: each plane has 301 economy seats and 36 business class flat beds, so each flight carries a lot of people across the Pacific.
6
Dallas/Fort Worth – Sydney
17 hours
Dallas/Fort Worth to Sydney ranks sixth among the longest Boeing 787 routes in 2026, with an average stage length of 8,569 miles, based on 2026 data from Cirium. Qantas runs this route with the Boeing 787-9, connecting its main US hub with Australia’s biggest city.
Cirium data indicates that the route operates 19 flights each year in both directions. This is a low-frequency schedule compared to many other ultra-long-haul services. The limited number of flights is due to the demands of a 17-hour journey. The Boeing 787-9 stretches its range limits, requiring more crew planning and greater maintenance effort. The route mainly serves premium, direct travelers rather than large volumes of passengers. Over the year, this leads to 4,484 seats being offered and over 38 million available seat miles (ASMs).
The 787-9 is one of the most popular Dreamliner models ever made, accounting for about 63% of all orders for the type. It can fly up to 7,635 nautical miles, which is enough to cover routes like this one without any changes. It also has a standard two-class capacity of about 290 passengers. That combination makes a 17-hour flight to Sydney possible without any special setup. As a result, Dallas/Fort Worth–Sydney is the sixth-longest Boeing 787 service in the world, just ahead of San Francisco–Singapore.
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5
Sydney – Houston
17 hours, 45 minutes
Direct flights between Sydney (SYD) and Houston (IAH) rank fifth among the longest Boeing 787 routes in 2026. The average distance is 8,587 miles, based on 2026 data from Cirium. According to Cirium, the route has 154 flights each year in both directions. This shows a consistent but not daily frequency compared to some other ultra-long-haul services. Over the year, this leads to 39,578 seats available and 339,856,286 available seat miles (ASMs).
The service mainly focuses on long-haul, premium travelers. It connects Australia’s busiest international airport with a major US hub, operating one of the longest non-stop flights the 787‑9 can manage.
Houston’s George Bush Intercontinental Airport (IAH) serves as a major hub for United Airlines, which makes it a natural gateway for passengers traveling onward across North America. The Sydney–Houston connection, therefore, functions not just as a point-to-point route but as a feeder into one of the United States’ most expansive domestic networks, which is an important consideration for the commercial case of operating a flight of nearly 18 hours at relatively modest frequency.
4
New York – Auckland
18 hours
John F. Kennedy International Airport (JFK) to Auckland (AKL) is the fourth-longest route for the Boeing 787 in 2026. It has an average stage length of 8,813 miles, based on Cirium data. The route operates with the Boeing 787‑9, providing one of the longest regular Dreamliner services between North America and New Zealand. Cirium data reveals that the route has 362 flights each year in both directions. Throughout the year, this results in 83,970 seats offered and 740,027,610 available seat miles (ASMs).
Frequent travelers have found this flight notable for providing some of the longest daylight hours in the air. This unique feature even creates a feeling of “reverse time travel” as you chase the setting sun across the Pacific.
After years of planning and delays caused by the pandemic, Air New Zealand opened the route in September 2022. The first flight from Auckland to JFK, with the prestigious NZ2 flight number that is usually reserved for the airline’s flagship service, was operated by a 787-9 registered ZK-NZN. There was some drama during the launch: the first flight from JFK had to change its route because of strong headwinds, leaving behind the checked luggage of about 65 passengers to make up for it with extra fuel.
3
Perth – Paris
17 hours
Perth (PER) to Paris Charles de Gaulle (CDG) ranks third among the longest Boeing 787 routes in 2026, with an average stage length of 8,847 miles, according to Cirium data.
There are 156 flights each year from Perth to Paris and 157 on the return trip, which shows a consistent but not entirely balanced schedule. Over the year, this results in 36,816 seats available on outbound flights and 37,052 seats on return flights. The outbound flights total 325,711,152 ASMs, while the inbound flights total 327,799,044 ASMs.
Unlike some other ultra-long-haul 787 routes we’ve discussed, the metrics for this route differ slightly in each direction. These differences are due to factors like scheduling changes for better fleet utilization, time zone differences that affect departure and arrival times, and minor changes in payload or routing caused by winds, airport slots, and crew rotations.
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2
Melbourne – Dallas/Fort Worth
16-17 hours
Melbourne (MEL) to Dallas/Fort Worth (DFW) is the second-longest Boeing 787 route in 2026, with an average distance of 8,973 miles, according to Cirium data. The route has 193 flights each year in both directions. This results in 45,548 seats offered and 408,702,204 available seat miles (ASMs) for outbound flights, and the same figures for return flights.
Jet stream patterns over the Pacific are what cause the big difference in flight times between the two directions. It takes about 15 hours and 45 minutes to fly from Melbourne to the other direction, and 17 hours and 15 minutes to fly back. Flights from Dallas to Melbourne that go west must fight against the strong winds at high altitudes, which add more than an hour to the trip. Flights from Melbourne to Dallas that go east with the same winds finish the sector much faster.
According to flight schedule data, this service operates three times per week from Melbourne to Dallas, with the return leg running daily. Qantas is currently the only airline offering direct flights between Melbourne and Dallas/Fort Worth.
1
Perth – London Heathrow
18 hours
The route from Perth (PER) to London Heathrow (LHR) is the longest Boeing 787 route in 2026, with an average length of 8,988 miles. There aren’t many commercial flights that have as much historical significance as this one. The “Kangaroo Route”, as Qantas used to call it, started in 1947 and took four days with nine stops. By the end of the Boeing 747 era, there was only one refueling stop in the Middle East or Asia. Then, on March 25, 2018, Qantas flight QF9 took off from Perth and landed at London Heathrow about 17 hours later. This was the first time a passenger plane flew directly between Europe and Australia.
According to Cirium, there are 365 flights each year in both directions for this route. This results in 81,420 seats and 731,802,960 available seat miles (ASMs) on flights leaving Perth. The return flights to Perth offer 86,140 seats and 774,226,320 ASMs.
Flightradar24 data indicates that Qantas operates this route daily. Flights usually depart Perth in the evening and arrive in London the following morning. The PER-LHR segment takes about 16 hours and 55 minutes to complete, while the return LHR-PER leg averages 15 hours and 50 minutes. The Perth-London route is one of the most important Dreamliner connections between Australia and Europe.
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