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STI to GAI: distance & flight time
Santiago (Cibao International Airport) → Gaithersburg (Montgomery County Airpark)
1,420 mi
2,286 km · 1,234 nm
3h 33m
estimated nonstop flight time
Same time
time difference · heading north
See live STI→GAI fares Phone-only fares on this route — call free
Flight time details
1,420 miles nonstop takes roughly 3h 33m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- STI — Cibao International Airport · Santiago, Dominican Republic
- GAI — Montgomery County Airpark · Gaithersburg, 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
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Near STI
Near GAI
Frequently asked questions
How far is STI from GAI?
The flight distance from Santiago (STI) to Gaithersburg (GAI) is 1,420 miles (2,286 km, 1,234 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STI to GAI?
A nonstop flight takes about 3h 33m 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 cheapest way to fly from STI to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STI–GAI that never appear on search engines, with no booking fees.