Need help booking?
Unpublished phone-only deals available
KCT to GTF: distance & flight time
Koggala (Koggala Airport) → Great Falls (Great Falls International Airport)
8,674 mi
13,959 km · 7,537 nm
17h 28m
estimated nonstop flight time
-11.5h
time difference · heading north
See live KCT→GTF fares Phone-only fares on this route — call free
Flight time details
8,674 miles nonstop takes roughly 17h 28m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time set-back when reading arrival times on your ticket.
The two airports
- KCT — Koggala Airport · Koggala, Sri Lanka
- GTF — Great Falls International Airport · Great Falls, 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 KCT
- HRI · Mattala Rajapaksa International Airport59 mi away
- RML · Colombo Ratmalana Airport65 mi away
- WRZ · Weerawila Airport65 mi away
- CMB · Bandaranaike International Colombo Airport87 mi away
Near GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Frequently asked questions
How far is KCT from GTF?
The flight distance from Koggala (KCT) to Great Falls (GTF) is 8,674 miles (13,959 km, 7,537 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KCT to GTF?
A nonstop flight takes about 17h 28m 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 Koggala and Great Falls?
Great Falls is 11.5 hours behind Koggala.
What is the cheapest way to fly from KCT to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KCT–GTF that never appear on search engines, with no booking fees.