Back to CalculatorRoute ID: LHR-CNX
Flight Distance from London (LHR) to Chiang Mai (CNX)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
LHREGLL
London, United Kingdom
London Heathrow Airport
Great Circle Path
9,015 km5,602 miles • 4,868 NM
Destination Airport
VTCCCNX
Chiang Mai, Thailand
Chiang Mai International Airport
Direct Distance
9,015 km
5,602 Statute Miles
4,868 Nautical Miles
Commercial Flight
11h 6m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
811 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
71° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
11h 6m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
10h 18m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
17h 50m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🇬🇧 United Kingdom→🇹🇭 Thailand
Allowed Stay60 days
Passport Validity Required6 months
💡 Official Note: Visa exemption for up to 60 days for tourism.
This information is provided for general guidance only and does not replace official verification with an embassy, consulate, or the IATA Travel Centre before you travel.
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Flight Path & Geodetic Arc Map
Great Circle Flight Arc Path
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Departure Airport Specs
London Heathrow Airport (LHR)
- City / Country: London, United Kingdom
- ICAO Code: EGLL
- Coordinates: 51.4707°, -0.4599°
- Timezone: Europe/London
- Elevation: 83 ft
Arrival Airport Specs
Chiang Mai International Airport (CNX)
- City / Country: Chiang Mai, Thailand
- ICAO Code: VTCC
- Coordinates: 18.7668°, 98.9626°
- Timezone: Asia/Bangkok
- Elevation: 1036 ft
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