Unexpected route on a flight from USA to Europe

Unexpected route on a flight from USA to Europe - From above of sunlit aged paper world map with continents countries and oceans

I fly often between London and east coast USA (usually New York or Boston) - and every single time up until now the flight would go along the great circle route.

I flew yesterday from Boston to London - and to my mild surprise the flight path went a lot further south - almost along the parallel. I can't get the full flight radar replay (I guess you need a paid membership for that), but here is a picture I took of the inflight progress display a couple of hours into the flight.

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This was flight VS158 (actually renamed to VS1158 due to change of destination airport).

Why would such an unusual path be chosen? I understand that it's unlikely we'd know the exact reasoning for this particular flight, so I'm wondering how and why decisions to route this way are made.

Edited to add: the flight was on 6 August 2019.



Best Answer

In short, your flight followed what is known as a "North Atlantic Track".

These are paths in the air above the North Atlantic which are used by air traffic control to effectively manage aircraft separation in the North Atlantic (where there are lots of planes and little radar coverage). Planes' entry into these tracks is managed for safety reasons and individualised flight plans are avoided.

The specifics of where these tracks are is determined by factors such as winds/jet-stream among many other considerations. There are also multiple tracks in operation at a time, meaning that a BOS-LHR flight will likely be on a different one than ATL-MAD (for example).

The Wikipedia article on this is pretty good!




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Why do planes not fly over the Pacific?

Flying over the Pacific Ocean is avoided by most airlines for most flights because it usually doesn't make sense to fly over it when shorter and safer routes exist. The Pacific Ocean is also more remote and less safe than the Indian and Atlantic Oceans to fly over, resulting in a higher chance of a plane crashing.

What ocean do you fly over to get to Europe?

A transatlantic flight is the flight of an aircraft across the Atlantic Ocean from Europe, Africa, South Asia, or the Middle East to North America, Central America, or South America, or vice versa. Such flights have been made by fixed-wing aircraft, airships, balloons and other aircraft.

Why are flight paths so weird?

Or why is it that when you see flight paths on a map they always take a curved route between 2 cities? It's because planes travel along the shortest route in a 3-dimensional space. This route is called a geodesic or great circle route. They are common in navigation, sailing and aviation.

Why do flights from US to Europe fly over Greenland?

It's simply the shortest distance. Between continents, airplanes follow what are called \u201cgreat circle\u201d routes, accounting for the earth's curvature.



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More answers regarding unexpected route on a flight from USA to Europe

Answer 2

I've seen this happen many times when flying from China to America. The thing is, airplanes don't actually care how far away the destination is, but rather they care about the flying time. When you are flying against the wind (as you generally are when heading west in the northern hemisphere) your best bet is the shortest route, hence flights heading west take the great circle route unless there is a political reason to do otherwise. (I've seen plenty of small zigs to avoid entering airspace and I've once seen a zig of hundreds of miles when they didn't want to fly anywhere near North Korea.)

However, when heading with the wind you can often find it is more advantageous to take the path with the most wind than to take the shortest path. I've seen a 200 mph tailwind.

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