# Distance between Rayong (UTP) and Chiang Mai (CNX)

Flight distance from Rayong to Chiang Mai (U-Tapao International Airport – Chiang Mai International Airport) is 440 miles / 708 kilometers / 382 nautical miles. Estimated flight time is 1 hour 19 minutes.

Driving distance from Rayong (UTP) to Chiang Mai (CNX) is 526 miles / 846 kilometers and travel time by car is about 10 hours 5 minutes.

## Map of flight path and driving directions from Rayong to Chiang Mai.

Shortest flight path between U-Tapao International Airport (UTP) and Chiang Mai International Airport (CNX).

## How far is Chiang Mai from Rayong?

There are several ways to calculate distances between Rayong and Chiang Mai. Here are two common methods:

Vincenty's formula (applied above)
• 440.053 miles
• 708.196 kilometers
• 382.395 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 441.933 miles
• 711.222 kilometers
• 384.029 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A U-Tapao International Airport
City: Rayong
Country: Thailand
IATA Code: UTP
ICAO Code: VTBU
Coordinates: 12°40′47″N, 101°0′17″E

B Chiang Mai International Airport
City: Chiang Mai
Country: Thailand
IATA Code: CNX
ICAO Code: VTCC
Coordinates: 18°46′0″N, 98°57′45″E

## Time difference and current local times

There is no time difference between Rayong and Chiang Mai.

+07

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## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 90 kg (198 pounds).

## Frequent Flyer Miles Calculator

Rayong (UTP) → Chiang Mai (CNX).

Distance:
440
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
440

Round trip?