Compare: Delhi→Bangkok (2,930 km) vs Delhi→Singapore (4,157 km). Delhi → Bangkok wins by 1,227 km (30%). Side-by-side with flight & drive times.
By SnapDistance Team · Updated April 21, 2026
2,930 km
1,821 miles · Flight: ~4h 10min · Drive: ~47h 37min
✓ Shorter route
4,157 km
2,583 miles · Flight: ~5h 42min · Drive: ~67h 33min
Difference: 1,227 km (30%) · Flight time difference: ~1h 32min
Verdict
Delhi → Bangkok is the smarter pick if travel time and emissions matter most: it is 1,227 km (30%) shorter, saves about 1h 32min of flight time, and cuts roughly 313 kg of CO₂ per passenger. Choose Delhi → Singapore only if the destination itself is the reason for the trip.
Delhi → Bangkok is the shorter route at 2,930 km, which is 1,227 km (30%) shorter than Delhi → Singapore. You would save approximately 1h 32min in flight time by choosing the shorter route.
| Metric | Delhi → Bangkok | Delhi → Singapore |
|---|---|---|
| Distance (km) | 2,930 | 4,157 |
| Distance (miles) | 1,821 | 2,583 |
| Flight time | ~4h 10min | ~5h 42min |
| Driving time | ~47h 37min | ~67h 33min |
| Road distance (est.) | ~3,809 km | ~5,404 km |
| Drivable? | Yes | No |
| Cross-continental | No | No |
| Initial bearing | 120° (ESE) | 132° (SE) |
| Time-zone shift | +2h | +2h |
| CO₂ – flight (per pax) | ~747 kg | ~1,060 kg |
| CO₂ – driving (per car) | ~651 kg | — |
| Fuel cost (est.) | ~$381 USD | — |
Flying from Delhi to Bangkok produces roughly 747 kg of CO₂ per passenger, based on the ICAO/EEA short-haul emission factor of ~0.255 kg per passenger-km. The Delhi → Singapore flight emits about 1,060 kg. Choosing the shorter route saves approximately 313 kg of CO₂ per traveler — equivalent to 15 typical tree-years of carbon sequestration.
The Delhi to Bangkok route covers 2,930 km (1,821 miles), staying within Asia. Delhi (population: 16,787,941) is located in North India, India, while Bangkok (population: 10,539,000) is in Central, Thailand.
The Delhi to Singapore route covers 4,157 km (2,583 miles), remaining within Asia. Delhi (population: 16,787,941) is in North India, India, and Singapore (population: 5,850,342) is in Singapore, Singapore.
Flying from Delhi to Bangkok takes approximately 4h 10min, while Delhi to Singapore takes 5h 42min. If driving is an option, expect roughly 47h 37min for the first route and 67h 33min for the second.
Since both routes depart from Delhi, this comparison is especially useful for travelers deciding between Bangkok and Singapore as a destination.
The 1,227 km difference between these routes is noticeable in both travel time and fuel or ticket costs.
Only the Delhi→Bangkok route is practical by car (3,809 km by road). The other route requires flying.
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.
Singapore (Singapore) has a population of 5,850,342 and is situated in Singapore, 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 2,930 km, which translates to a 1h 32min flight-time saving and roughly 313 kg less CO₂ per passenger versus the alternative. Driving is realistic at this distance, with an estimated 3,809 km of road and a fuel cost band around $381 USD. The initial bearing is 120° (ESE), so a great-circle flight leaves Delhi heading roughly ESE.
This route is the right call if you are heading to Singapore (Singapore) — a city of 5,850,342 in the Singapore region of Asia. Even though it is the longer route at 4,157 km, it remains the obvious pick when Singapore is the actual destination, when departure schedules from Delhi are more convenient, or when fares undercut the alternative. Overland travel is not practical for 4,157 km; flying is the realistic mode. Departing Delhi, the great-circle bearing toward Singapore is 132° (SE).
Delhi (28.70°, 77.10°) and Bangkok (13.76°, 100.50°) sit with a time-zone shift of +2 hours. Delhi (28.70°, 77.10°) and Singapore (1.35°, 103.82°) have a +2-hour offset. Both routes have manageable time-zone shifts, so jet lag should not be a major factor.
Bangkok is closer at 2,930 km, which is 1,227 km (30%) shorter.
2,930 km (1,821 miles). Flight: ~4h 10min.
4,157 km (2,583 miles). Flight: ~5h 42min.
Flying to Bangkok is faster at ~4h 10min, saving about 1h 32min 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.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 21, 2026.