United Airlines is ramping up its operations of the Boeing 777-300ER, the longest aircraft in its fleet, with a total of 806 scheduled flights this month. The airline operates 22 of these twinjets, which have an average age of eight years, according to data from ch-aviation. While each 777-300ER seats 350 passengers, they are not the highest-capacity jets in United’s fleet; that distinction belongs to the smaller 777-200 and 777-200ER models.
This month, United’s flights with the Boeing 777-300ER will offer a combined total of 282,100 seats. This represents a 7.1% year-on-year reduction compared to December 2024, when the airline scheduled 868 flights and provided 303,800 seats.
Key Destinations for the Boeing 777-300ER
United Airlines is focusing on several vital routes, particularly in the transpacific corridor. The airline’s busiest routes involving the 777-300ER this month include double-daily flights from San Francisco International Airport (SFO) to Manila’s Ninoy Aquino International Airport (MNL) in the Philippines, alongside a similar frequency to Hong Kong International Airport (HKG). These routes are competitive, with Philippine Airlines also operating a daily non-stop flight to Manila.
The importance of Hong Kong is underscored by United’s recent expansions, including new flights to Bangkok and Ho Chi Minh City, as highlighted by Business Traveller in October. Patrick Quayle, United’s Vice President of International Network, noted in 2019 that the addition of a second daily flight to Hong Kong enhances travel flexibility to a major business market.
Transatlantic and Other Routes
United’s Boeing 777-300ER also plays a significant role in its transatlantic operations. This December, the aircraft connects Newark Liberty International Airport (EWR) with Frankfurt Airport (FRA), Germany’s busiest hub. Frankfurt is a key destination for United, benefiting from its partnership with Lufthansa, which operates a substantial presence at this airport.
Additionally, the 777-300ER serves Frankfurt daily from Washington Dulles International Airport (IAD), which, according to the Department of Transportation, listed Frankfurt as Dulles’ second-busiest international destination in 2024. The third daily European route from Dulles is to Brussels Airport (BRU), another important hub for United’s operations within the Star Alliance network.
Beyond these primary routes, United Airlines utilizes the 777-300ER for flights from San Francisco to Shanghai (PVG) and Taipei (TPE). The airline also services domestic routes to Honolulu (HNL) and Newark. Notably, there is a daily flight from Honolulu to Guam (GUM) using the 777-300ER.
Lastly, the aircraft facilitates a long-haul connection from Newark to Dubai International Airport (DXB) in the United Arab Emirates. This route is competitive, with Emirates also providing service between these two cities. The flights take approximately 13 hours and five minutes eastbound and 15 hours and 25 minutes westbound.
United Airlines continues to invest in its fleet and route network, ensuring that its Boeing 777-300ER plays a vital role in connecting key international markets while adapting to current travel demands.
