Need help booking?
Unpublished phone-only deals available
GAI to LLY: distance & flight time
Gaithersburg (Montgomery County Airpark) → Mount Holly (South Jersey Regional Airport)
135 mi
217 km · 117 nm
49m
estimated nonstop flight time
Same time
time difference · heading northeast
See live GAI→LLY fares Phone-only fares on this route — call free
Flight time details
135 miles nonstop takes roughly 49m 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
- LLY — South Jersey Regional Airport · Mount Holly, 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 LLY
- PHL · Philadelphia International Airport22 mi away
- PNE · Northeast Philadelphia Airport13 mi away
- WRI · Mc Guire Air Force Base14 mi away
- TTN · Trenton Mercer Airport23 mi away
Frequently asked questions
How far is GAI from LLY?
The flight distance from Gaithersburg (GAI) to Mount Holly (LLY) is 135 miles (217 km, 117 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to LLY?
A nonstop flight takes about 49m 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 LLY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–LLY that never appear on search engines, with no booking fees.