Need help booking?
Unpublished phone-only deals available
RML to PHN: distance & flight time
Colombo (Colombo Ratmalana Airport) → Port Huron (St Clair County International Airport)
8,827 mi
14,206 km · 7,671 nm
17h 47m
estimated nonstop flight time
-9.5h
time difference · heading north
See live RML→PHN fares Phone-only fares on this route — call free
Flight time details
8,827 miles nonstop takes roughly 17h 47m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time set-back when reading arrival times on your ticket.
The two airports
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
- PHN — St Clair County International Airport · Port Huron, United States
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 PHN
Frequently asked questions
How far is RML from PHN?
The flight distance from Colombo (RML) to Port Huron (PHN) is 8,827 miles (14,206 km, 7,671 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to PHN?
A nonstop flight takes about 17h 47m 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 Port Huron?
Port Huron is 9.5 hours behind Colombo.
What is the cheapest way to fly from RML to PHN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–PHN that never appear on search engines, with no booking fees.