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SOM to GSI: distance & flight time
San Tome (San Tomé Airport) → Grand-Santi (Grand-Santi Airport)
744 mi
1,198 km · 647 nm
2h 5m
estimated nonstop flight time
+1h
time difference · heading southeast
See live SOM→GSI fares Phone-only fares on this route — call free
Flight time details
744 miles nonstop takes roughly 2h 5m gate to gate, flying southeast. 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
- SOM — San Tomé Airport · San Tome, Venezuela
- GSI — Grand-Santi Airport · Grand-Santi, French Guiana
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 SOM
- AAO · Anaco Airport40 mi away
- CBL · Aeropuerto "General Tomas de Heres". Ciudad Bolivar71 mi away
- MUN · Maturín Airport88 mi away
- BLA · General José Antonio Anzoategui International Airport89 mi away
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
Frequently asked questions
How far is SOM from GSI?
The flight distance from San Tome (SOM) to Grand-Santi (GSI) is 744 miles (1,198 km, 647 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SOM to GSI?
A nonstop flight takes about 2h 5m 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 SOM to GSI?
Nonstop service on SOM–GSI 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 2h 5m nonstop estimate.
What is the time difference between San Tome and Grand-Santi?
Grand-Santi is 1 hour ahead of San Tome.
What is the cheapest way to fly from SOM to GSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SOM–GSI that never appear on search engines, with no booking fees.
Why are some SOM to GSI fares phone-only?
Consolidator contracts let us sell certain SOM–GSI 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.