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GTF to SIN: distance & flight time
Great Falls (Great Falls International Airport) → Singapore (Singapore Changi Airport)
8,447 mi
13,593 km · 7,340 nm
17h 2m
estimated nonstop flight time
+14h
time difference · heading northwest
See live GTF→SIN fares Phone-only fares on this route — call free
Flight time details
8,447 miles nonstop takes roughly 17h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- SIN — Singapore Changi Airport · Singapore, Singapore
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 SIN
- QPG · Paya Lebar Air Base6 mi away
- XSP · Seletar Airport10 mi away
- BTH · Hang Nadim International Airport18 mi away
- TGA · Tengah Air Base20 mi away
Frequently asked questions
How far is GTF from SIN?
The flight distance from Great Falls (GTF) to Singapore (SIN) is 8,447 miles (13,593 km, 7,340 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to SIN?
A nonstop flight takes about 17h 2m 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 Singapore?
Singapore is 14 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to SIN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–SIN that never appear on search engines, with no booking fees.