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GSI to LTM: distance & flight time
Grand-Santi (Grand-Santi Airport) → Lethem (Lethem Airport)
379 mi
609 km · 329 nm
1h 28m
estimated nonstop flight time
-1h
time difference · heading west
See live GSI→LTM fares Phone-only fares on this route — call free
Flight time details
379 miles nonstop takes roughly 1h 28m gate to gate, flying west. 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
- GSI — Grand-Santi Airport · Grand-Santi, French Guiana
- LTM — Lethem Airport · Lethem, Guyana
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 GSI
- SMZ · Stoelmanseiland Airport5 mi away
- DRJ · Drietabbetje Airport24 mi away
- MPY · Maripasoula Airport49 mi away
- LDX · Saint-Laurent-du-Maroni Airport86 mi away
Near LTM
- NAI · Annai Airport61 mi away
- BVB · Atlas Brasil Cantanhede Airport72 mi away
- ORJ · Orinduik Airport95 mi away
- SNV · Santa Elena de Uairen Airport124 mi away
Frequently asked questions
How far is GSI from LTM?
The flight distance from Grand-Santi (GSI) to Lethem (LTM) is 379 miles (609 km, 329 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GSI to LTM?
A nonstop flight takes about 1h 28m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from GSI to LTM?
Nonstop service on GSI–LTM depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 28m nonstop estimate.
What is the time difference between Grand-Santi and Lethem?
Lethem is 1 hour behind Grand-Santi.
What is the cheapest way to fly from GSI to LTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GSI–LTM that never appear on search engines, with no booking fees.
Why are some GSI to LTM fares phone-only?
Consolidator contracts let us sell certain GSI–LTM tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.