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ISN to CON: distance & flight time
Williston (Sloulin Field International Airport) → Concord NH (Concord Municipal Airport)
1,577 mi
2,537 km · 1,370 nm
3h 33m
estimated nonstop flight time
+1h
time difference · heading east
See live ISN→CON fares Phone-only fares on this route — call free
Flight time details
1,577 miles nonstop takes roughly 3h 33m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- CON — Concord Municipal Airport · Concord NH, 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 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 CON
Frequently asked questions
How far is ISN from CON?
The flight distance from Williston (ISN) to Concord NH (CON) is 1,577 miles (2,537 km, 1,370 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to CON?
A nonstop flight takes about 3h 33m 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 Concord NH?
Concord NH is 1 hour ahead of Williston.
What is the cheapest way to fly from ISN to CON?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–CON that never appear on search engines, with no booking fees.