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ISN to LEU: distance & flight time
Williston (Sloulin Field International Airport) → Seo De Urgel (Pirineus - la Seu d'Urgel Airport)
4,701 mi
7,566 km · 4,085 nm
9h 41m
estimated nonstop flight time
+7h
time difference · heading northeast
See live ISN→LEU fares Phone-only fares on this route — call free
Flight time details
4,701 miles nonstop takes roughly 9h 41m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- LEU — Pirineus - la Seu d'Urgel Airport · Seo De Urgel, Spain
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 LEU
- BCN · Barcelona International Airport80 mi away
- ILD · Lleida-Alguaire Airport62 mi away
- QSA · Sabadell Airport67 mi away
- GRO · Girona Airport76 mi away
Frequently asked questions
How far is ISN from LEU?
The flight distance from Williston (ISN) to Seo De Urgel (LEU) is 4,701 miles (7,566 km, 4,085 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to LEU?
A nonstop flight takes about 9h 41m 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 Seo De Urgel?
Seo De Urgel is 7 hours ahead of Williston.
What is the cheapest way to fly from ISN to LEU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–LEU that never appear on search engines, with no booking fees.