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XSP to ISN: distance & flight time
Singapore (Seletar Airport) → Williston (Sloulin Field International Airport)
8,633 mi
13,893 km · 7,502 nm
17h 24m
estimated nonstop flight time
-13h
time difference · heading north
See live XSP→ISN fares Phone-only fares on this route — call free
Flight time details
8,633 miles nonstop takes roughly 17h 24m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- XSP — Seletar Airport · Singapore, Singapore
- ISN — Sloulin Field International Airport · Williston, 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 XSP
- SIN · Singapore Changi Airport10 mi away
- QPG · Paya Lebar Air Base5 mi away
- TGA · Tengah Air Base11 mi away
- JHB · Senai International Airport21 mi away
Near ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Frequently asked questions
How far is XSP from ISN?
The flight distance from Singapore (XSP) to Williston (ISN) is 8,633 miles (13,893 km, 7,502 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from XSP to ISN?
A nonstop flight takes about 17h 24m 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 Singapore and Williston?
Williston is 13 hours behind Singapore.
What is the cheapest way to fly from XSP to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on XSP–ISN that never appear on search engines, with no booking fees.