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GSI to SOM: distance & flight time
Grand-Santi (Grand-Santi Airport) → San Tome (San Tomé Airport)
744 mi
1,198 km · 647 nm
2h 5m
estimated nonstop flight time
-1h
time difference · heading northwest
See live GSI→SOM fares Phone-only fares on this route — call free
Flight time details
744 miles nonstop takes roughly 2h 5m gate to gate, flying northwest. 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
- SOM — San Tomé Airport · San Tome, Venezuela
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 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
Frequently asked questions
How far is GSI from SOM?
The flight distance from Grand-Santi (GSI) to San Tome (SOM) is 744 miles (1,198 km, 647 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GSI to SOM?
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 GSI to SOM?
Nonstop service on GSI–SOM 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 Grand-Santi and San Tome?
San Tome is 1 hour behind Grand-Santi.
What is the cheapest way to fly from GSI to SOM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GSI–SOM that never appear on search engines, with no booking fees.
Why are some GSI to SOM fares phone-only?
Consolidator contracts let us sell certain GSI–SOM 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.