Need help booking?
Unpublished phone-only deals available
GAI to HOU: distance & flight time
Gaithersburg (Montgomery County Airpark) → Houston (William P Hobby Airport)
1,221 mi
1,965 km · 1,061 nm
3h 7m
estimated nonstop flight time
-1h
time difference · heading southwest
See live GAI→HOU fares Phone-only fares on this route — call free
Flight time details
1,221 miles nonstop takes roughly 3h 7m gate to gate, flying southwest. 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
- HOU — William P Hobby Airport · Houston, 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 HOU
- IAH · George Bush Intercontinental Houston Airport24 mi away
- EFD · Ellington Airport8 mi away
- AAP · Andrau Airpark19 mi away
- SGR · Sugar Land Regional Airport23 mi away
Frequently asked questions
How far is GAI from HOU?
The flight distance from Gaithersburg (GAI) to Houston (HOU) is 1,221 miles (1,965 km, 1,061 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to HOU?
A nonstop flight takes about 3h 7m 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 Houston?
Houston is 1 hour behind Gaithersburg.
What is the cheapest way to fly from GAI to HOU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–HOU that never appear on search engines, with no booking fees.