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SJU to GAI: distance & flight time
San Juan (Luis Munoz Marin International Airport) → Gaithersburg (Montgomery County Airpark)
1,581 mi
2,544 km · 1,373 nm
3h 34m
estimated nonstop flight time
Same time
time difference · heading northwest
See live SJU→GAI fares Phone-only fares on this route — call free
Flight time details
1,581 miles nonstop takes roughly 3h 34m gate to gate, flying northwest. 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
- SJU — Luis Munoz Marin International Airport · San Juan, Puerto Rico
- 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
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 SJU
- SIG · Fernando Luis Ribas Dominicci Airport6 mi away
- FAJ · Diego Jimenez Torres Airport24 mi away
- NRR · José Aponte de la Torre Airport27 mi away
- VQS · Vieques Airport44 mi away
Near GAI
Frequently asked questions
How far is SJU from GAI?
The flight distance from San Juan (SJU) to Gaithersburg (GAI) is 1,581 miles (2,544 km, 1,373 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SJU to GAI?
A nonstop flight takes about 3h 34m 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 SJU to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SJU–GAI that never appear on search engines, with no booking fees.