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PTB to GAI: distance & flight time
Petersburg (Dinwiddie County Airport) → Gaithersburg (Montgomery County Airpark)
138 mi
223 km · 120 nm
50m
estimated nonstop flight time
Same time
time difference · heading north
See live PTB→GAI fares Phone-only fares on this route — call free
Flight time details
138 miles nonstop takes roughly 50m 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
- PTB — Dinwiddie County Airport · Petersburg, United States
- 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 PTB
- RIC · Richmond International Airport24 mi away
- FAF · Felker Army Air Field50 mi away
- PHF · Newport News Williamsburg International Airport56 mi away
- LFI · Langley Air Force Base64 mi away
Near GAI
Frequently asked questions
How far is PTB from GAI?
The flight distance from Petersburg (PTB) to Gaithersburg (GAI) is 138 miles (223 km, 120 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PTB to GAI?
A nonstop flight takes about 50m 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 PTB to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PTB–GAI that never appear on search engines, with no booking fees.