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LIS to ISN: distance & flight time
Lisbon (Humberto Delgado Airport (Lisbon Portela Airport)) → Williston (Sloulin Field International Airport)
4,477 mi
7,204 km · 3,890 nm
9h 15m
estimated nonstop flight time
-6h
time difference · heading northwest
See live LIS→ISN fares Phone-only fares on this route — call free
Flight time details
4,477 miles nonstop takes roughly 9h 15m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- LIS — Humberto Delgado Airport (Lisbon Portela Airport) · Lisbon, Portugal
- 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 LIS
- AVR · Alverca Air Base9 mi away
- CAT · Cascais Airport12 mi away
- QLR · Monte Real Air Base74 mi away
- BYJ · Beja Airport / Airbase81 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 LIS from ISN?
The flight distance from Lisbon (LIS) to Williston (ISN) is 4,477 miles (7,204 km, 3,890 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LIS to ISN?
A nonstop flight takes about 9h 15m 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 Lisbon and Williston?
Williston is 6 hours behind Lisbon.
What is the cheapest way to fly from LIS to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LIS–ISN that never appear on search engines, with no booking fees.