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RML to HLH: distance & flight time
Colombo (Colombo Ratmalana Airport) → Ulanhot (Ulanhot Airport)
3,693 mi
5,943 km · 3,209 nm
7h 42m
estimated nonstop flight time
+2.5h
time difference · heading northeast
See live RML→HLH fares Phone-only fares on this route — call free
Flight time details
3,693 miles nonstop takes roughly 7h 42m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.5-hour time gain when reading arrival times on your ticket.
The two airports
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
- HLH — Ulanhot Airport · Ulanhot, China
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 HLH
- DBC · Baicheng Chang'an Airport68 mi away
- NDG · Qiqihar Sanjiazi Airport116 mi away
- NZL · Chengjisihan Airport121 mi away
- YIE · Arxan Yi'ershi Airport126 mi away
Frequently asked questions
How far is RML from HLH?
The flight distance from Colombo (RML) to Ulanhot (HLH) is 3,693 miles (5,943 km, 3,209 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to HLH?
A nonstop flight takes about 7h 42m 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 Ulanhot?
Ulanhot is 2.5 hours ahead of Colombo.
What is the cheapest way to fly from RML to HLH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–HLH that never appear on search engines, with no booking fees.