Compare: New York→Dublin (5,115 km) vs New York→London (5,570 km). New York → Dublin wins by 455 km (8%). Side-by-side with flight & drive times.
By SnapDistance Team
5,115 km
3,178 miles · Flight: ~6h 54min
✓ Shorter route
5,570 km
3,461 miles · Flight: ~7h 28min
Difference: 455 km (8%) · Flight time difference: ~34 min
Verdict
New York → Dublin is the smarter pick if travel time and emissions matter most: it is 455 km (8%) shorter, saves about 34 min of flight time, and cuts roughly 116 kg of CO₂ per passenger. Choose New York → London only if the destination itself is the reason for the trip.
New York → Dublin is the shorter route at 5,115 km, which is 455 km (8%) shorter than New York → London. You would save approximately 34 min in flight time by choosing the shorter route.
| Metric | New York → Dublin | New York → London |
|---|---|---|
| Distance (km) | 5,115 | 5,570 |
| Distance (miles) | 3,178 | 3,461 |
| Flight time | ~6h 54min | ~7h 28min |
| Driving time | No road estimate | No road estimate |
| Road distance (rough estimate) | Not published | Not published |
| Continuous road link? | No | No |
| Cross-continental | Yes | Yes |
| Initial bearing | 50° (NE) | 51° (NE) |
| Time-zone shift | +5h | +5h |
| CO₂ – flight (per pax) | ~1,304 kg | ~1,420 kg |
| CO₂ – driving (per car) | — | — |
| Fuel cost (est.) | — | — |
Flying from New York to Dublin produces roughly 1,304 kg of CO₂ per passenger, based on the ICAO/EEA short-haul emission factor of ~0.255 kg per passenger-km. The New York → London flight emits about 1,420 kg. Choosing the shorter route saves approximately 116 kg of CO₂ per traveler — equivalent to 6 typical tree-years of carbon sequestration.
The New York to Dublin route covers 5,115 km (3,178 miles), crossing from North America to Europe. New York (population: 8,336,817) is located in Northeast, United States, while Dublin (population: 554,554) is in Leinster, Ireland.
The New York to London route covers 5,570 km (3,461 miles), spanning from North America to Europe. New York (population: 8,336,817) is in Northeast, United States, and London (population: 8,982,000) is in England, United Kingdom.
Flying from New York to Dublin takes approximately 6h 54min, while New York to London takes 7h 28min.
Since both routes depart from New York, this comparison is especially useful for travelers deciding between Dublin and London as a destination.
The 455 km difference between these routes is relatively modest, so other factors like ticket prices and schedules may matter more.
Neither route has a road figure we can defend. There is no continuous road connection between New York and Dublin — the two cities sit on separate landmasses, so the journey requires air or sea transport. There is no continuous road connection between New York and London — the two cities sit on separate landmasses, so the journey requires air or sea transport.
Dublin (Ireland) has a population of 554,554 and is located in the Leinster region of Europe. It's a charming destination known for its regional character.
London (United Kingdom) has a population of 8,982,000 and is situated in England, Europe. This major global city has multiple airports and world-class infrastructure.
Choose this route if your priority is reaching Dublin (Ireland) — a city of 554,554 in the Leinster region of Europe. It is also the shorter option at 5,115 km, which translates to a 34 min flight-time saving and roughly 116 kg less CO₂ per passenger versus the alternative. This is a fly-only route in practice — overland travel is not realistic at 5,115 km. The initial bearing is 50° (NE), so a great-circle flight leaves New York heading roughly NE.
This route is the right call if you are heading to London (United Kingdom) — a city of 8,982,000 in the England region of Europe. Even though it is the longer route at 5,570 km, it remains the obvious pick when London is the actual destination, when departure schedules from New York are more convenient, or when fares undercut the alternative. Overland travel is not practical for 5,570 km; flying is the realistic mode. Departing New York, the great-circle bearing toward London is 51° (NE).
New York (40.71°, -74.01°) → Dublin (53.35°, -6.26°): New York keeps America/New_York time and Dublin keeps Europe/Dublin time — a gap of about 5 hours, with Dublin ahead. The exact gap moves when either zone switches to or from daylight saving, so use the live figure in the calculator for your travel dates. New York (40.71°, -74.01°) → London (51.51°, -0.13°): New York keeps America/New_York time and London keeps Europe/London time — a gap of about 5 hours, with London ahead. The exact gap moves when either zone switches to or from daylight saving, so use the live figure in the calculator for your travel dates. Both gaps come from the cities' real IANA zones and move with daylight saving. Shifts of 5 hours or more typically produce noticeable jet lag — plan one recovery day per three time zones crossed.
Dublin is closer at 5,115 km, which is 455 km (8%) shorter.
5,115 km (3,178 miles). Flight: ~6h 54min.
5,570 km (3,461 miles). Flight: ~7h 28min.
Flying to Dublin is faster at ~6h 54min, saving about 34 min compared to London.
All distances on SnapDistance are calculated using the Haversine formula, which determines the great-circle distance between two points on Earth's surface. This gives the shortest possible distance over the globe, which is the measurement used for aviation and navigation. Actual travel distances by road or rail are typically 20-40% longer due to terrain, borders, and infrastructure routing. Flight times assume 800 km/h cruising speed with 30 minutes for takeoff and landing. Driving estimates use 80 km/h average speed with a 30% road distance factor.