Bangkok, Thailand → Seoul, South Korea · ✈ 5h 9min · 🚗 60h 29min
2,010 nautical miles · Time difference: +1h ahead · Direction: northeast
The distance from Bangkok to Seoul is 3,722 km (2,313 miles). The fastest way to travel is by flight. A direct flight takes approximately 5h 9min.
The straight-line distance from Bangkok, Thailand to Seoul, South Korea is approximately 3,722 kilometers (2,313 miles or 2,010 nautical miles). This measurement uses the Haversine formula, computing the great-circle distance — the shortest path between two points on Earth's surface.
Seoul is located northeast of Bangkok. Bangkok is in Asia, in the Central region of Thailand, while Seoul is in Asia, in Capital Area, South Korea. Both cities are in Asia.
| Mode | Distance | Est. Time | Best For |
|---|---|---|---|
| ✈️ Flight | 3,722 km | ~5h 9min | Best option for speed |
| 🚗 Drive | ~4,839 km | ~60h 29min | Long journey, consider stops |
Our recommendation: flight is typically the best way to travel from Bangkok to Seoul. For 3,722 km, flying saves significant time and is usually the most practical choice.
Based on an estimated road distance of 4,839 km, fuel costs for driving from Bangkok to Seoul are approximately $387–$726 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 Seoul is located at 37.5665°N, 126.9780°E. The initial compass bearing from Bangkok to Seoul is 40° (NE), so a great-circle flight path leaves Bangkok heading roughly NE. 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 23.81° and the longitude difference is 26.48°. 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 Seoul is approximately 26.2623°N, 112.3749°E. This is the great-circle halfway position — the spot where you would be exactly 1,861 km from each city. On long-haul flights this point usually falls over open ocean or remote terrain, which is why in-flight maps often look "empty" mid-route.
Seoul is roughly 1 hour ahead of Bangkok. When it is 09:00 in Bangkok, it is approximately 10:00 in Seoul. Daylight saving time can shift the offset by an hour during certain months, so confirm the exact difference for your specific travel dates.
Bangkok uses the Thai Baht (THB), while Seoul uses the South Korean Won (KRW). Plan to exchange currency before departure or use a low-fee travel card on arrival — airport rates are typically the worst available. The primary local language shifts from Thai in Bangkok to Korean in Seoul. Learning a few basic phrases makes a noticeable difference at hotels, restaurants, and transit hubs.
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
Seoul is a notable city in South Korea with a population of approximately 9,776,000. Situated in the Capital Area region, it serves as a key destination in Asia. Seoul is one of South Korea's largest cities, offering major airport hubs, extensive public transport, and a wide range of accommodation options.
→ See all distances from Seoul
3,722 km is a long-distance route that typically requires air travel. This is comparable to spanning a large continent. For context, London to Dubai is about 5,500 km.
The 3,722 km between Bangkok and Seoul means a beam of light could travel this distance in approximately 12.4 milliseconds — but a flight still takes 5h 9min.
Combined, Bangkok and Seoul have a population of over 20,315,000 people, making this a major urban corridor.
See how the Bangkok to Seoul distance compares to similar routes:
The straight-line distance from Bangkok to Seoul is approximately 3,722 kilometers (2,313 miles, 2,010 nautical miles).
A direct flight takes approximately 5h 9min, based on 800 km/h cruising speed plus 30 minutes for takeoff and landing.
Estimated driving time is approximately 60h 29min, based on 80 km/h average speed and roads being ~30% longer than straight-line distance.
Seoul is approximately +1h ahead compared to Bangkok.
The estimated road distance is approximately 4,839 km, which is about 30% longer than the 3,722 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.