Compare: New York→Tokyo (10,852 km) vs New York→Sydney (15,989 km). New York → Tokyo wins by 5,137 km (32%). Side-by-side with flight & drive times.
By SnapDistance Team
10,852 km
6,743 miles · Flight: ~14h 4min
✓ Shorter route
15,989 km
9,935 miles · Flight: ~20h 29min
Difference: 5,137 km (32%) · Flight time difference: ~6h 25min
Verdict
New York → Tokyo is the smarter pick if travel time and emissions matter most: it is 5,137 km (32%) shorter, saves about 6h 25min of flight time, and cuts roughly 1,310 kg of CO₂ per passenger. Choose New York → Sydney only if the destination itself is the reason for the trip.
New York → Tokyo is the shorter route at 10,852 km, which is 5,137 km (32%) shorter than New York → Sydney. You would save approximately 6h 25min in flight time by choosing the shorter route.
| Metric | New York → Tokyo | New York → Sydney |
|---|---|---|
| Distance (km) | 10,852 | 15,989 |
| Distance (miles) | 6,743 | 9,935 |
| Flight time | ~14h 4min | ~20h 29min |
| 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 | 333° (NNW) | 266° (W) |
| Time-zone shift | +13h | +15h |
| CO₂ – flight (per pax) | ~2,767 kg | ~4,077 kg |
| CO₂ – driving (per car) | — | — |
| Fuel cost (est.) | — | — |
Flying from New York to Tokyo produces roughly 2,767 kg of CO₂ per passenger, based on the ICAO/EEA short-haul emission factor of ~0.255 kg per passenger-km. The New York → Sydney flight emits about 4,077 kg. Choosing the shorter route saves approximately 1,310 kg of CO₂ per traveler — equivalent to 62 typical tree-years of carbon sequestration.
The New York to Tokyo route covers 10,852 km (6,743 miles), crossing from North America to Asia. New York (population: 8,336,817) is located in Northeast, United States, while Tokyo (population: 13,960,000) is in Kanto, Japan.
The New York to Sydney route covers 15,989 km (9,935 miles), spanning from North America to Oceania. New York (population: 8,336,817) is in Northeast, United States, and Sydney (population: 5,312,163) is in New South Wales, Australia.
Flying from New York to Tokyo takes approximately 14h 4min, while New York to Sydney takes 20h 29min.
Since both routes depart from New York, this comparison is especially useful for travelers deciding between Tokyo and Sydney as a destination.
The 5,137 km difference between these routes is substantial and will significantly impact travel time and cost.
Neither route has a road figure we can defend. There is no continuous road connection between New York and Tokyo — 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 Sydney — the two cities sit on separate landmasses, so the journey requires air or sea transport.
Tokyo (Japan) has a population of 13,960,000 and is located in the Kanto region of Asia. As a major metropolis, it offers extensive international connections and diverse attractions.
Sydney (Australia) has a population of 5,312,163 and is situated in New South Wales, Oceania. This major global city has multiple airports and world-class infrastructure.
Choose this route if your priority is reaching Tokyo (Japan) — a city of 13,960,000 in the Kanto region of Asia. It is also the shorter option at 10,852 km, which translates to a 6h 25min flight-time saving and roughly 1,310 kg less CO₂ per passenger versus the alternative. This is a fly-only route in practice — overland travel is not realistic at 10,852 km. The initial bearing is 333° (NNW), so a great-circle flight leaves New York heading roughly NNW.
This route is the right call if you are heading to Sydney (Australia) — a city of 5,312,163 in the New South Wales region of Oceania. Even though it is the longer route at 15,989 km, it remains the obvious pick when Sydney 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 15,989 km; flying is the realistic mode. Departing New York, the great-circle bearing toward Sydney is 266° (W).
New York (40.71°, -74.01°) → Tokyo (35.68°, 139.65°): New York keeps America/New_York time and Tokyo keeps Asia/Tokyo time — a gap of about 13 hours, with Tokyo 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°) → Sydney (-33.87°, 151.21°): New York keeps America/New_York time and Sydney keeps Australia/Sydney time — a gap of about 15 hours, with Sydney 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.
Tokyo is closer at 10,852 km, which is 5,137 km (32%) shorter.
10,852 km (6,743 miles). Flight: ~14h 4min.
15,989 km (9,935 miles). Flight: ~20h 29min.
Flying to Tokyo is faster at ~14h 4min, saving about 6h 25min compared to Sydney.
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.