Compare: Tokyo→Singapore (5,311 km) vs Tokyo→Bangkok (4,599 km). Tokyo → Bangkok wins by 712 km (13%). Side-by-side with flight & drive times.
By SnapDistance Team
5,311 km
3,300 miles · Flight: ~7h 8min
4,599 km
2,858 miles · Flight: ~6h 15min
✓ Shorter route
Difference: 712 km (13%) · Flight time difference: ~53 min
Verdict
Tokyo → Bangkok is the smarter pick if travel time and emissions matter most: it is 712 km (13%) shorter, saves about 53 min of flight time, and cuts roughly 181 kg of CO₂ per passenger. Choose Tokyo → Singapore only if the destination itself is the reason for the trip.
Tokyo → Bangkok is the shorter route at 4,599 km, which is 712 km (13%) shorter than Tokyo → Singapore. You would save approximately 53 min in flight time by choosing the shorter route.
| Metric | Tokyo → Singapore | Tokyo → Bangkok |
|---|---|---|
| Distance (km) | 5,311 | 4,599 |
| Distance (miles) | 3,300 | 2,858 |
| Flight time | ~7h 8min | ~6h 15min |
| Driving time | No road estimate | No road estimate |
| Road distance (rough estimate) | Not published | Not published |
| Continuous road link? | No | No |
| Cross-continental | No | No |
| Initial bearing | 232° (SW) | 248° (WSW) |
| Time-zone shift | -1h | -2h |
| CO₂ – flight (per pax) | ~1,354 kg | ~1,173 kg |
| CO₂ – driving (per car) | — | — |
| Fuel cost (est.) | — | — |
Flying from Tokyo to Singapore produces roughly 1,354 kg of CO₂ per passenger, based on the ICAO/EEA short-haul emission factor of ~0.255 kg per passenger-km. The Tokyo → Bangkok flight emits about 1,173 kg. Choosing the shorter route saves approximately 181 kg of CO₂ per traveler — equivalent to 9 typical tree-years of carbon sequestration.
The Tokyo to Singapore route covers 5,311 km (3,300 miles), staying within Asia. Tokyo (population: 13,960,000) is located in Kanto, Japan, while Singapore (population: 5,850,342) is in Singapore, Singapore.
The Tokyo to Bangkok route covers 4,599 km (2,858 miles), remaining within Asia. Tokyo (population: 13,960,000) is in Kanto, Japan, and Bangkok (population: 10,539,000) is in Central, Thailand.
Flying from Tokyo to Singapore takes approximately 7h 8min, while Tokyo to Bangkok takes 6h 15min.
Since both routes depart from Tokyo, this comparison is especially useful for travelers deciding between Singapore and Bangkok as a destination.
The 712 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 Tokyo and Singapore — the two cities sit on separate landmasses, so the journey requires air or sea transport. There is no continuous road connection between Tokyo and Bangkok — the two cities sit on separate landmasses, so the journey requires air or sea transport.
Singapore (Singapore) has a population of 5,850,342 and is located in the Singapore region of Asia. As a major metropolis, it offers extensive international connections and diverse attractions.
Bangkok (Thailand) has a population of 10,539,000 and is situated in Central, Asia. This major global city has multiple airports and world-class infrastructure.
Choose this route if your priority is reaching Singapore (Singapore) — a city of 5,850,342 in the Singapore region of Asia. Despite being the longer of the two at 5,311 km, it makes sense when Singapore itself is the destination, the schedule fits better, or ticket prices are noticeably lower. This is a fly-only route in practice — overland travel is not realistic at 5,311 km. The initial bearing is 232° (SW), so a great-circle flight leaves Tokyo heading roughly SW.
This route is the right call if you are heading to Bangkok (Thailand) — a city of 10,539,000 in the Central region of Asia. It is also the shorter of the two at 4,599 km, saving about 53 min of flying and around 181 kg of CO₂ per passenger. Overland travel is not practical for 4,599 km; flying is the realistic mode. Departing Tokyo, the great-circle bearing toward Bangkok is 248° (WSW).
Tokyo (35.68°, 139.65°) → Singapore (1.35°, 103.82°): Tokyo keeps Asia/Tokyo time and Singapore keeps Asia/Singapore time — a gap of about 1 hour, with Singapore behind. 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. Tokyo (35.68°, 139.65°) → Bangkok (13.76°, 100.50°): Tokyo keeps Asia/Tokyo time and Bangkok keeps Asia/Bangkok time — a gap of about 2 hours, with Bangkok behind. 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. Both routes have manageable shifts, so jet lag should not be a major factor.
Bangkok is closer at 4,599 km, which is 712 km (13%) shorter.
5,311 km (3,300 miles). Flight: ~7h 8min.
4,599 km (2,858 miles). Flight: ~6h 15min.
Flying to Bangkok is faster at ~6h 15min, saving about 53 min compared to Singapore.
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.