Boeing, Airbus Can't Replace the 757

[BoeingBoy]

Transatlantic is an adjective describing something that spans or crosses the Atlantic Ocean.

And flying from Iceland to the US or Europe means you have to cross the atlantic.

"Trans-Atlantic" seems to have added a "longer time over the Atlantic" to it's definition, at least in common usage. If BOS is landing rwy 27 you fly over the Atlantic arriving from the south but it's not a "trans-Atlantic" route. CLT to MCO or the east coast cities further south in Florida fly over the Atlantic but isn't "trans-Atlantic". Flights to/from the Caribbean fly over the Atlantic, but aren't "trans-Atlantic". So "trans-Atlantic" doesn't just mean a flight that operates above the Atlantic for some portion.

Given Iceland's location, flights to the U.S. and Europe don't spend that much time or distance over the Atlantic - To Europe 800 or fewer nm and to N. America about 1200 nm. Not as far PHL to the Rockies, which isn't "trans-continental" even though it's all flown over the continent.

Perhaps "trans-Atlantic" is better used as meaning flights between continents which cross the Atlantic.

Jim