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RML to KKC: distance & flight time
Colombo (Colombo Ratmalana Airport) → Khon Kaen (Khon Kaen Airport)
1,684 mi
2,711 km · 1,464 nm
3h 46m
estimated nonstop flight time
+1.5h
time difference · heading northeast
See live RML→KKC fares Phone-only fares on this route — call free
Flight time details
1,684 miles nonstop takes roughly 3h 46m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.5-hour time gain when reading arrival times on your ticket.
The two airports
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
- KKC — Khon Kaen Airport · Khon Kaen, Thailand
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 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
Near KKC
- UTH · Udon Thani Airport64 mi away
- ROI · Roi Et Airport70 mi away
- BFV · Buri Ram Airport91 mi away
- LOE · Loei Airport97 mi away
Frequently asked questions
How far is RML from KKC?
The flight distance from Colombo (RML) to Khon Kaen (KKC) is 1,684 miles (2,711 km, 1,464 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to KKC?
A nonstop flight takes about 3h 46m 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 Colombo and Khon Kaen?
Khon Kaen is 1.5 hours ahead of Colombo.
What is the cheapest way to fly from RML to KKC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–KKC that never appear on search engines, with no booking fees.