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POX to HLN: distance & flight time
Pontoise (Pontoise - Cormeilles-en-Vexin Airport) → Helena (Helena Regional Airport)
4,735 mi
7,620 km · 4,114 nm
9h 45m
estimated nonstop flight time
-8h
time difference · heading northwest
See live POX→HLN fares Phone-only fares on this route — call free
Flight time details
4,735 miles nonstop takes roughly 9h 45m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- POX — Pontoise - Cormeilles-en-Vexin Airport · Pontoise, France
- HLN — Helena Regional Airport · Helena, 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 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
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
Frequently asked questions
How far is POX from HLN?
The flight distance from Pontoise (POX) to Helena (HLN) is 4,735 miles (7,620 km, 4,114 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from POX to HLN?
A nonstop flight takes about 9h 45m 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 Pontoise and Helena?
Helena is 8 hours behind Pontoise.
What is the cheapest way to fly from POX to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on POX–HLN that never appear on search engines, with no booking fees.