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PHN to ISN: distance & flight time
Port Huron (St Clair County International Airport) → Williston (Sloulin Field International Airport)
1,080 mi
1,739 km · 939 nm
2h 49m
estimated nonstop flight time
-1h
time difference · heading northwest
See live PHN→ISN fares Phone-only fares on this route — call free
Flight time details
1,080 miles nonstop takes roughly 2h 49m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- PHN — St Clair County International Airport · Port Huron, United States
- 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 PHN
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 PHN from ISN?
The flight distance from Port Huron (PHN) to Williston (ISN) is 1,080 miles (1,739 km, 939 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to ISN?
A nonstop flight takes about 2h 49m 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 Port Huron and Williston?
Williston is 1 hour behind Port Huron.
What is the cheapest way to fly from PHN to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–ISN that never appear on search engines, with no booking fees.