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ISN to RER: distance & flight time
Williston (Sloulin Field International Airport) → Retalhuleu (Retalhuleu Airport)
2,423 mi
3,900 km · 2,106 nm
5h 13m
estimated nonstop flight time
-1h
time difference · heading south
See live ISN→RER fares Phone-only fares on this route — call free
Flight time details
2,423 miles nonstop takes roughly 5h 13m gate to gate, flying south. 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
- ISN — Sloulin Field International Airport · Williston, United States
- RER — Retalhuleu Airport · Retalhuleu, Guatemala
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 RER
- AAZ · Quezaltenango Airport27 mi away
- TAP · Tapachula International Airport49 mi away
- AQB · Santa Cruz del Quiche Airport50 mi away
- GSJ · San José Airport70 mi away
Frequently asked questions
How far is ISN from RER?
The flight distance from Williston (ISN) to Retalhuleu (RER) is 2,423 miles (3,900 km, 2,106 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to RER?
A nonstop flight takes about 5h 13m 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 Retalhuleu?
Retalhuleu is 1 hour behind Williston.
What is the cheapest way to fly from ISN to RER?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–RER that never appear on search engines, with no booking fees.