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SIR to RML: distance & flight time
Sion (Sion Airport) → Colombo (Colombo Ratmalana Airport)
5,047 mi
8,122 km · 4,385 nm
10h 22m
estimated nonstop flight time
+3.5h
time difference · heading east
See live SIR→RML fares Phone-only fares on this route — call free
Flight time details
5,047 miles nonstop takes roughly 10h 22m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time gain when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- 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 SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 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 SIR from RML?
The flight distance from Sion (SIR) to Colombo (RML) is 5,047 miles (8,122 km, 4,385 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to RML?
A nonstop flight takes about 10h 22m 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 Sion and Colombo?
Colombo is 3.5 hours ahead of Sion.
What is the cheapest way to fly from SIR to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–RML that never appear on search engines, with no booking fees.