Air Miles Calculator

Distance between Rayong (UTP) and Chiang Rai (CEI)

Flight distance from Rayong to Chiang Rai (U-Tapao International Airport – Chiang Rai International Airport) is 506 miles / 814 kilometers / 439 nautical miles. Estimated flight time is 1 hour 27 minutes.

Driving distance from Rayong (UTP) to Chiang Rai (CEI) is 617 miles / 993 kilometers and travel time by car is about 11 hours 30 minutes.

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

Shortest flight path between U-Tapao International Airport (UTP) and Chiang Rai International Airport (CEI).

How far is Chiang Rai from Rayong?

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

Vincenty's formula (applied above)
  • 505.583 miles
  • 813.657 kilometers
  • 439.339 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
  • 507.945 miles
  • 817.458 kilometers
  • 441.392 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 Flag of Thailand
IATA Code: UTP
ICAO Code: VTBU
Coordinates: 12°40′47″N, 101°0′17″E

B Chiang Rai International Airport
City: Chiang Rai
Country: Thailand Flag of Thailand
IATA Code: CEI
ICAO Code: VTCT
Coordinates: 19°57′8″N, 99°52′58″E

Time difference and current local times

There is no time difference between Rayong and Chiang Rai.

Time Difference

Rayong

 +07

Chiang Rai

 +07

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 99 kg (219 pounds).

Frequent Flyer Miles Calculator

Rayong (UTP) → Chiang Rai (CEI).

Distance:
506
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
506

Round trip?