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HLN to SIN: distance & flight time
Helena (Helena Regional Airport) → Singapore (Singapore Changi Airport)
8,470 mi
13,632 km · 7,361 nm
17h 5m
estimated nonstop flight time
+14h
time difference · heading northwest
See live HLN→SIN fares Phone-only fares on this route — call free
Flight time details
8,470 miles nonstop takes roughly 17h 5m 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
- HLN — Helena Regional Airport · Helena, 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 HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 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 HLN from SIN?
The flight distance from Helena (HLN) to Singapore (SIN) is 8,470 miles (13,632 km, 7,361 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to SIN?
A nonstop flight takes about 17h 5m 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 Helena and Singapore?
Singapore is 14 hours ahead of Helena.
What is the cheapest way to fly from HLN to SIN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–SIN that never appear on search engines, with no booking fees.