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GTF to ADP: distance & flight time
Great Falls (Great Falls International Airport) → Galoya (Ampara Airport)
8,567 mi
13,787 km · 7,444 nm
17h 16m
estimated nonstop flight time
+11.5h
time difference · heading north
See live GTF→ADP fares Phone-only fares on this route — call free
Flight time details
8,567 miles nonstop takes roughly 17h 16m 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 gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- ADP — Ampara Airport · Galoya, 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 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
Near ADP
- BTC · Batticaloa Airport26 mi away
- HIM · Hingurakgoda Air Force Base66 mi away
- GIU · Sigiriya Air Force Base75 mi away
- WRZ · Weerawila Airport80 mi away
Frequently asked questions
How far is GTF from ADP?
The flight distance from Great Falls (GTF) to Galoya (ADP) is 8,567 miles (13,787 km, 7,444 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to ADP?
A nonstop flight takes about 17h 16m 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 Great Falls and Galoya?
Galoya is 11.5 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to ADP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–ADP that never appear on search engines, with no booking fees.