Due East from New York City: You’ll Hit Ireland First Across the Atlantic

If you draw a straight line due east (90° true bearing) from New York City, you won’t hit another country for 3,460 miles (5,570 km)—until you reach the western coast of Ireland. The entire journey traverses the North Atlantic Ocean.

The Geometry

• Starting point: NYC (approx. 40.7° N, 74.0° W).
• Due east line: Constant latitude ~40.7° N.
• First landfall: County Mayo, Ireland (near Achill Island or the Mullet Peninsula), at ~40.7° N, 10° W.
• Distance: ~3,460 miles (5,570 km) great-circle distance.

What You Cross

1. Continental Shelf – shallow waters off US/Canada (~100 mi).
2. Abyssal Plain – deep ocean (4,000–5,000 m).
3. Mid-Atlantic Ridge – underwater mountain chain (divergent plate boundary).
4. European Continental Shelf – approaching Ireland.

Why Not Europe Sooner?

At 40.7° N, you pass north of the Azores (Portugal, ~37–39° N) and south of England (Cornwall ~50° N). The great-circle route at this latitude misses the British Isles entirely until Ireland’s western edge.

Practical Context

• Flight time: ~6.5–7 hours nonstop (NYC–Dublin/Shannon).
• Shipping route: Major transatlantic lane.
• Subsea cables: Critical internet infrastructure follows similar paths.

Common Misconceptions

• ❌ “You hit Portugal/Spain first.” – Too far south.
• ❌ “You hit England.” – Too far north.
• ❌ “The Azores are due east.” – They’re southwest of the latitude line.

So, while the shortest transatlantic crossing (great circle) from NYC to Europe aims for the UK/Ireland, a due-east rhumb line specifically makes Ireland the first country encountered. Next would be the UK (Northern Ireland), then the Irish Sea, then Great Britain.