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RML to SWU: distance & flight time
Colombo (Colombo Ratmalana Airport) → Suwon (Suwon Airport)
3,622 mi
5,830 km · 3,148 nm
7h 34m
estimated nonstop flight time
+3.5h
time difference · heading northeast
See live RML→SWU fares Phone-only fares on this route — call free
Flight time details
3,622 miles nonstop takes roughly 7h 34m gate to gate, flying northeast. 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
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
- SWU — Suwon Airport · Suwon, South Korea
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 SWU
- ICN · Incheon International Airport34 mi away
- OSN · Osan Air Base10 mi away
- SSN · Seoul Air Base (K-16)15 mi away
- GMP · Gimpo International Airport25 mi away
Frequently asked questions
How far is RML from SWU?
The flight distance from Colombo (RML) to Suwon (SWU) is 3,622 miles (5,830 km, 3,148 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to SWU?
A nonstop flight takes about 7h 34m 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 Suwon?
Suwon is 3.5 hours ahead of Colombo.
What is the cheapest way to fly from RML to SWU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–SWU that never appear on search engines, with no booking fees.