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GAI to PHX: distance & flight time
Gaithersburg (Montgomery County Airpark) → Phoenix (Phoenix Sky Harbor International Airport)
1,968 mi
3,167 km · 1,710 nm
4h 20m
estimated nonstop flight time
-3h
time difference · heading west
See live GAI→PHX fares Phone-only fares on this route — call free
Flight time details
1,968 miles nonstop takes roughly 4h 20m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- PHX — Phoenix Sky Harbor International Airport · Phoenix, 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 PHX
- SCF · Scottsdale Airport14 mi away
- MSC · Falcon Field16 mi away
- DVT · Phoenix Deer Valley Airport18 mi away
- GYR · Phoenix Goodyear Airport21 mi away
Frequently asked questions
How far is GAI from PHX?
The flight distance from Gaithersburg (GAI) to Phoenix (PHX) is 1,968 miles (3,167 km, 1,710 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to PHX?
A nonstop flight takes about 4h 20m 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 Phoenix?
Phoenix is 3 hours behind Gaithersburg.
What is the cheapest way to fly from GAI to PHX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–PHX that never appear on search engines, with no booking fees.