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GAI to HRO: distance & flight time
Gaithersburg (Montgomery County Airpark) → Harrison (Boone County Airport)
895 mi
1,441 km · 778 nm
2h 25m
estimated nonstop flight time
-1h
time difference · heading west
See live GAI→HRO fares Phone-only fares on this route — call free
Flight time details
895 miles nonstop takes roughly 2h 25m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- HRO — Boone County Airport · Harrison, 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 HRO
- BKG · Branson Airport19 mi away
- FLP · Marion County Regional Airport32 mi away
- WMH · Ozark Regional Airport39 mi away
- FYV · Drake Field59 mi away
Frequently asked questions
How far is GAI from HRO?
The flight distance from Gaithersburg (GAI) to Harrison (HRO) is 895 miles (1,441 km, 778 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to HRO?
A nonstop flight takes about 2h 25m 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 time difference between Gaithersburg and Harrison?
Harrison is 1 hour behind Gaithersburg.
What is the cheapest way to fly from GAI to HRO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–HRO that never appear on search engines, with no booking fees.