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RER to FSI: distance & flight time
Retalhuleu (Retalhuleu Airport) → Fort Sill (Henry Post Army Air Field (Fort Sill))
1,452 mi
2,337 km · 1,262 nm
3h 37m
estimated nonstop flight time
+1h
time difference · heading north
See live RER→FSI fares Phone-only fares on this route — call free
Flight time details
1,452 miles nonstop takes roughly 3h 37m gate to gate, flying north. 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
- RER — Retalhuleu Airport · Retalhuleu, Guatemala
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, 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 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
Near FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 mi away
Frequently asked questions
How far is RER from FSI?
The flight distance from Retalhuleu (RER) to Fort Sill (FSI) is 1,452 miles (2,337 km, 1,262 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RER to FSI?
A nonstop flight takes about 3h 37m 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 Retalhuleu and Fort Sill?
Fort Sill is 1 hour ahead of Retalhuleu.
What is the cheapest way to fly from RER to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RER–FSI that never appear on search engines, with no booking fees.