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ASH to ISN: distance & flight time
Nashua (Boire Field) → Williston (Sloulin Field International Airport)
1,588 mi
2,556 km · 1,380 nm
3h 35m
estimated nonstop flight time
-1h
time difference · heading northwest
See live ASH→ISN fares Phone-only fares on this route — call free
Flight time details
1,588 miles nonstop takes roughly 3h 35m 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
- ASH — Boire Field · Nashua, 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 ASH
- BOS · General Edward Lawrence Logan International Airport39 mi away
- MHT · Manchester-Boston Regional Airport11 mi away
- LWM · Lawrence Municipal Airport20 mi away
- BED · Laurence G Hanscom Field24 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 ASH from ISN?
The flight distance from Nashua (ASH) to Williston (ISN) is 1,588 miles (2,556 km, 1,380 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASH to ISN?
A nonstop flight takes about 3h 35m 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 Nashua and Williston?
Williston is 1 hour behind Nashua.
What is the cheapest way to fly from ASH to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASH–ISN that never appear on search engines, with no booking fees.