Bangkok, Thailand → Phnom Penh, Cambodia · ✈ 1h 10min · 🚗 8h 46min
291 nautical miles · Time difference: Same timezone · Direction: southeast
The distance from Bangkok to Phnom Penh is 539 km (335 miles). The fastest way to travel is by flight. A direct flight takes approximately 1h 10min.
The straight-line distance from Bangkok, Thailand to Phnom Penh, Cambodia is approximately 539 kilometers (335 miles or 291 nautical miles). This measurement uses the Haversine formula, computing the great-circle distance — the shortest path between two points on Earth's surface.
Phnom Penh is located southeast of Bangkok. Bangkok is in Asia, in the Central region of Thailand, while Phnom Penh is in Asia, in Phnom Penh, Cambodia. Both cities are in Asia.
| Mode | Distance | Est. Time | Best For |
|---|---|---|---|
| ✈️ Flight | 539 km | ~1h 10min | Best option for speed |
| 🚗 Drive | ~701 km | ~8h 46min | Feasible with breaks |
| 🚂 Regular Train | ~647 km | ~5h 23min | Scenic but slow |
Our recommendation: flight is typically the best way to travel from Bangkok to Phnom Penh. For 539 km, flying saves significant time and is usually the most practical choice.
Based on an estimated road distance of 701 km, fuel costs for driving from Bangkok to Phnom Penh are approximately $56–$105 USD (at $0.08–$0.15 per km, depending on vehicle efficiency and local fuel prices). Additional costs may include tolls, parking, and accommodation for longer trips.
Bangkok sits at 13.7563°N, 100.5018°E, while Phnom Penh is located at 11.5564°N, 104.9282°E. The initial compass bearing from Bangkok to Phnom Penh is 116° (ESE), so a great-circle flight path leaves Bangkok heading roughly ESE. Because the Earth is curved, the actual heading shifts gradually along the route — pilots and navigation systems update it continuously instead of holding a single fixed compass bearing.
The latitude difference is 2.20° and the longitude difference is 4.43°. Each degree of latitude represents about 111 km, which is one reason cross-latitude routes feel longer even when the map looks similar to east–west journeys.
The geographic midpoint between Bangkok and Phnom Penh is approximately 12.6655°N, 102.7245°E. This is the great-circle halfway position — the spot where you would be exactly 270 km from each city. For road trips, a stop near this latitude/longitude makes for a natural overnight or lunch break.
Bangkok and Phnom Penh share the same approximate time zone, so meetings, calls, and arrivals don't require any clock adjustment. This makes the route especially convenient for short business trips. Daylight saving time can shift the offset by an hour during certain months, so confirm the exact difference for your specific travel dates.
Bangkok is a major city in Thailand with a population of approximately 10,539,000. Located in the Central region, it is an important hub in Asia. As one of the largest cities in Thailand, Bangkok is a major international gateway with extensive air connections and multiple airports.
→ See all distances from Bangkok
Phnom Penh is a notable city in Cambodia with a population of approximately 2,129,371. Situated in the Phnom Penh region, it serves as a key destination in Asia. Phnom Penh offers solid transport connections and a variety of arrival options as a major city in Cambodia.
539 km is a medium-distance route, similar to traveling across a mid-sized European country. A flight covers this distance quickly, but driving or rail travel remains feasible for those who prefer ground transport. For reference, New York to Chicago is about 1,150 km.
At 539 km, the Bangkok-Phnom Penh route is about 1.3% of Earth's circumference. A commercial jet covers this distance in about 1h 10min.
Combined, Bangkok and Phnom Penh have a population of over 12,668,371 people, making this a major urban corridor.
See how the Bangkok to Phnom Penh distance compares to similar routes:
The straight-line distance from Bangkok to Phnom Penh is approximately 539 kilometers (335 miles, 291 nautical miles).
A direct flight takes approximately 1h 10min, based on 800 km/h cruising speed plus 30 minutes for takeoff and landing.
Estimated driving time is approximately 8h 46min, based on 80 km/h average speed and roads being ~30% longer than straight-line distance.
Phnom Penh is approximately Same timezone compared to Bangkok.
The estimated road distance is approximately 701 km, which is about 30% longer than the 539 km straight-line distance.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 21, 2026.