B777 Undifferentiated or Other Model
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter Fuel Issue
General None Reported / Taken
Procedure; Human Factors; Weather
Flight was re-routed by ATC. Received call today at from a Captain asking for dispatcher who worked flight (I only flight followed;) voicing concern about the re-route because it added nearly an hour to the flight (his words) making for a long trip for only a 2 man crew and also the re-route was because the filed route went through restricted airspace. I checked the route originally filed and while there is a restricted area nearby; the route did not go through it; though it did go through a surrounding warning area. Explained that to the Captain; but not being the one who released flight initially; have no way of knowing if revised route was coordinated and/or approved by [Foreign] ATC. Captain is going to reach out and contact the dispatcher who initially released flight. Another flight [that] was filed on same route through this area and similarly re-routed; though that flight was held down in altitude and ultimately had to land short of destination for fuel.I cannot state what the cause of the event was. I took over these flights after they were released and only flight followed them; re-calculating burns as needed for the re-routes; and in the case of [the other flight] making every attempt to make it work to reach destination before finally deciding with concurrence of Captain to stop short for fuel stop.Not knowing what caused this to happen in first place; I can't say. I don't know if coordination/approval was obtained from [Foreign] ATC for this routing or not since it did involve off airway; point to point flying. Without this knowledge; or what was looked at during the initial planning/release process; I can't address a cause or how to prevent it.
Air carrier Dispatcher reported a 777 Captain was unhappy because original flight plan required a reroute enroute; adding flight time and increased fuel burn.