Compare: Sydney→Bangkok (7,536 km) vs Sydney→Tokyo (7,826 km). Sydney → Bangkok wins by 290 km (4%). Side-by-side with flight & drive times.
By SnapDistance Team · Updated April 21, 2026
7,536 km
4,683 miles · Flight: ~9h 55min · Drive: ~122h 28min
✓ Shorter route
7,826 km
4,863 miles · Flight: ~10h 17min · Drive: ~127h 10min
Difference: 290 km (4%) · Flight time difference: ~22 min
Verdict
Sydney → Bangkok is the smarter pick if travel time and emissions matter most: it is 290 km (4%) shorter, saves about 22 min of flight time, and cuts roughly 74 kg of CO₂ per passenger. Choose Sydney → Tokyo only if the destination itself is the reason for the trip.
Sydney → Bangkok is the shorter route at 7,536 km, which is 290 km (4%) shorter than Sydney → Tokyo. You would save approximately 22 min in flight time by choosing the shorter route.
| Metric | Sydney → Bangkok | Sydney → Tokyo |
|---|---|---|
| Distance (km) | 7,536 | 7,826 |
| Distance (miles) | 4,683 | 4,863 |
| Flight time | ~9h 55min | ~10h 17min |
| Driving time | ~122h 28min | ~127h 10min |
| Road distance (est.) | ~9,797 km | ~10,174 km |
| Drivable? | No | No |
| Cross-continental | Yes | Yes |
| Initial bearing | 306° (NW) | 350° (N) |
| Time-zone shift | -3h | -1h |
| CO₂ – flight (per pax) | ~1,922 kg | ~1,996 kg |
| CO₂ – driving (per car) | — | — |
| Fuel cost (est.) | — | — |
Flying from Sydney to Bangkok produces roughly 1,922 kg of CO₂ per passenger, based on the ICAO/EEA short-haul emission factor of ~0.255 kg per passenger-km. The Sydney → Tokyo flight emits about 1,996 kg. Choosing the shorter route saves approximately 74 kg of CO₂ per traveler — equivalent to 4 typical tree-years of carbon sequestration.
The Sydney to Bangkok route covers 7,536 km (4,683 miles), crossing from Oceania to Asia. Sydney (population: 5,312,163) is located in New South Wales, Australia, while Bangkok (population: 10,539,000) is in Central, Thailand.
The Sydney to Tokyo route covers 7,826 km (4,863 miles), spanning from Oceania to Asia. Sydney (population: 5,312,163) is in New South Wales, Australia, and Tokyo (population: 13,960,000) is in Kanto, Japan.
Flying from Sydney to Bangkok takes approximately 9h 55min, while Sydney to Tokyo takes 10h 17min. If driving is an option, expect roughly 122h 28min for the first route and 127h 10min for the second.
Since both routes depart from Sydney, this comparison is especially useful for travelers deciding between Bangkok and Tokyo as a destination.
The 290 km difference between these routes is relatively modest, so other factors like ticket prices and schedules may matter more.
Neither route is practical by car. Flying is the recommended transport for both.
Bangkok (Thailand) has a population of 10,539,000 and is located in the Central region of Asia. As a major metropolis, it offers extensive international connections and diverse attractions.
Tokyo (Japan) has a population of 13,960,000 and is situated in Kanto, Asia. This major global city has multiple airports and world-class infrastructure.
Choose this route if your priority is reaching Bangkok (Thailand) — a city of 10,539,000 in the Central region of Asia. It is also the shorter option at 7,536 km, which translates to a 22 min flight-time saving and roughly 74 kg less CO₂ per passenger versus the alternative. This is a fly-only route in practice — overland travel is not realistic at 7,536 km. The initial bearing is 306° (NW), so a great-circle flight leaves Sydney heading roughly NW.
This route is the right call if you are heading to Tokyo (Japan) — a city of 13,960,000 in the Kanto region of Asia. Even though it is the longer route at 7,826 km, it remains the obvious pick when Tokyo is the actual destination, when departure schedules from Sydney are more convenient, or when fares undercut the alternative. Overland travel is not practical for 7,826 km; flying is the realistic mode. Departing Sydney, the great-circle bearing toward Tokyo is 350° (N).
Sydney (-33.87°, 151.21°) and Bangkok (13.76°, 100.50°) sit with a time-zone shift of -3 hours. Sydney (-33.87°, 151.21°) and Tokyo (35.68°, 139.65°) have a -1-hour offset. Both routes have manageable time-zone shifts, so jet lag should not be a major factor.
Bangkok is closer at 7,536 km, which is 290 km (4%) shorter.
7,536 km (4,683 miles). Flight: ~9h 55min.
7,826 km (4,863 miles). Flight: ~10h 17min.
Flying to Bangkok is faster at ~9h 55min, saving about 22 min compared to Tokyo.
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.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 21, 2026.