Need help booking?
Unpublished phone-only deals available
ALG to GAI: distance & flight time
Algier (Houari Boumediene Airport) → Gaithersburg (Montgomery County Airpark)
4,231 mi
6,809 km · 3,676 nm
8h 46m
estimated nonstop flight time
-5h
time difference · heading northwest
See live ALG→GAI fares Phone-only fares on this route — call free
Flight time details
4,231 miles nonstop takes roughly 8h 46m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- ALG — Houari Boumediene Airport · Algier, Algeria
- 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 ALG
- QLD · Blida Airport26 mi away
- BJA · Soummam Airport103 mi away
- BUJ · Bou Saada Airport109 mi away
- CFK · Ech Cheliff Airport110 mi away
Near GAI
Frequently asked questions
How far is ALG from GAI?
The flight distance from Algier (ALG) to Gaithersburg (GAI) is 4,231 miles (6,809 km, 3,676 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALG to GAI?
A nonstop flight takes about 8h 46m 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 Algier and Gaithersburg?
Gaithersburg is 5 hours behind Algier.
What is the cheapest way to fly from ALG to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALG–GAI that never appear on search engines, with no booking fees.