Cirium Diio data reveals that the United States is seeing 6,335 departing long-haul international flights this week, averaging 905 takeoffs daily. These long-haul flights cover at least 3,000 statute miles. Among over 800 passenger routes available, the average frequency is daily, with some routes having two or three daily departures. However, there are also routes with just one weekly flight.
An analysis shows that 15 long-haul international US routes have only one weekly flight. Routes with two or more weekly services were excluded from this count. For instance, TUI Airways operates a weekly service from Manchester to Melbourne (Florida), but its Newcastle to Melbourne route has two flights and is thus excluded.
The list of routes combines nonstop and one-stop operations. For example, Fiji Airways offers a weekly nonstop between Nadi and Honolulu but increases to three weekly when including its one-stop operations via Apia and Kiritimati.