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OSR to RML: distance & flight time
Ostrava (Ostrava Leos Janáček Airport) → Colombo (Colombo Ratmalana Airport)
4,614 mi
7,425 km · 4,009 nm
9h 31m
estimated nonstop flight time
+3.5h
time difference · heading east
See live OSR→RML fares Phone-only fares on this route — call free
Flight time details
4,614 miles nonstop takes roughly 9h 31m 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
- OSR — Ostrava Leos Janáček Airport · Ostrava, Czech Republic
- 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 OSR
- PRV · Přerov Air Base37 mi away
- ILZ · Žilina Airport39 mi away
- UHE · Kunovice Airport55 mi away
- KTW · Katowice International Airport69 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 OSR from RML?
The flight distance from Ostrava (OSR) to Colombo (RML) is 4,614 miles (7,425 km, 4,009 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSR to RML?
A nonstop flight takes about 9h 31m 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 Ostrava and Colombo?
Colombo is 3.5 hours ahead of Ostrava.
What is the cheapest way to fly from OSR to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSR–RML that never appear on search engines, with no booking fees.