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GAI to SFZ: distance & flight time
Gaithersburg (Montgomery County Airpark) → Smithfield (North Central State Airport)
353 mi
569 km · 307 nm
1h 24m
estimated nonstop flight time
Same time
time difference · heading northeast
See live GAI→SFZ fares Phone-only fares on this route — call free
Flight time details
353 miles nonstop takes roughly 1h 24m gate to gate, flying northeast. 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
- GAI — Montgomery County Airpark · Gaithersburg, United States
- SFZ — North Central State Airport · Smithfield, 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 GAI
Near SFZ
- BOS · General Edward Lawrence Logan International Airport39 mi away
- PVD · Theodore Francis Green State Airport14 mi away
- NCO · Quonset State Airport23 mi away
- OWD · Norwood Memorial Airport25 mi away
Frequently asked questions
How far is GAI from SFZ?
The flight distance from Gaithersburg (GAI) to Smithfield (SFZ) is 353 miles (569 km, 307 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to SFZ?
A nonstop flight takes about 1h 24m 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 GAI to SFZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–SFZ that never appear on search engines, with no booking fees.