Need help booking?
Unpublished phone-only deals available
GAI to ILM: distance & flight time
Gaithersburg (Montgomery County Airpark) → Wilmington (Wilmington International Airport)
341 mi
549 km · 296 nm
1h 22m
estimated nonstop flight time
Same time
time difference · heading south
See live GAI→ILM fares Phone-only fares on this route — call free
Flight time details
341 miles nonstop takes roughly 1h 22m gate to gate, flying south. 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
- ILM — Wilmington International Airport · Wilmington, 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 ILM
- OAJ · Albert J Ellis Airport42 mi away
- CRE · Grand Strand Airport57 mi away
- LBT · Lumberton Regional Airport70 mi away
- MYR · Myrtle Beach International Airport72 mi away
Frequently asked questions
How far is GAI from ILM?
The flight distance from Gaithersburg (GAI) to Wilmington (ILM) is 341 miles (549 km, 296 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to ILM?
A nonstop flight takes about 1h 22m 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 ILM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–ILM that never appear on search engines, with no booking fees.