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ISN to POX: distance & flight time
Williston (Sloulin Field International Airport) → Pontoise (Pontoise - Cormeilles-en-Vexin Airport)
4,392 mi
7,068 km · 3,816 nm
9h 5m
estimated nonstop flight time
+7h
time difference · heading northeast
See live ISN→POX fares Phone-only fares on this route — call free
Flight time details
4,392 miles nonstop takes roughly 9h 5m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- POX — Pontoise - Cormeilles-en-Vexin Airport · Pontoise, France
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 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
Near POX
- CDG · Charles de Gaulle International Airport24 mi away
- LBG · Paris-Le Bourget Airport20 mi away
- VIY · Villacoublay-Vélizy (BA 107) Air Base23 mi away
- CSF · Creil Air Base24 mi away
Frequently asked questions
How far is ISN from POX?
The flight distance from Williston (ISN) to Pontoise (POX) is 4,392 miles (7,068 km, 3,816 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to POX?
A nonstop flight takes about 9h 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 Williston and Pontoise?
Pontoise is 7 hours ahead of Williston.
What is the cheapest way to fly from ISN to POX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–POX that never appear on search engines, with no booking fees.