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BKK to RML: distance & flight time
Bangkok (Suvarnabhumi Airport) → Colombo (Colombo Ratmalana Airport)
1,494 mi
2,405 km · 1,299 nm
3h 43m
estimated nonstop flight time
-1.5h
time difference · heading west
See live BKK→RML fares Phone-only fares on this route — call free
Flight time details
1,494 miles nonstop takes roughly 3h 43m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.5-hour time set-back when reading arrival times on your ticket.
The two airports
- BKK — Suvarnabhumi Airport · Bangkok, Thailand
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near BKK
- DMK · Don Mueang International Airport19 mi away
- KDT · Kamphaeng Saen Airport63 mi away
- UTP · U-Tapao International Airport71 mi away
- HHQ · Hua Hin Airport90 mi away
Near RML
- CMB · Bandaranaike International Colombo Airport25 mi away
- KCT · Koggala Airport65 mi away
- HRI · Mattala Rajapaksa International Airport93 mi away
- GIU · Sigiriya Air Force Base97 mi away
Frequently asked questions
How far is BKK from RML?
The flight distance from Bangkok (BKK) to Colombo (RML) is 1,494 miles (2,405 km, 1,299 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BKK to RML?
A nonstop flight takes about 3h 43m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Bangkok and Colombo?
Colombo is 1.5 hours behind Bangkok.
What is the cheapest way to fly from BKK to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BKK–RML that never appear on search engines, with no booking fees.