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GAI to CGX: distance & flight time
Gaithersburg (Montgomery County Airpark) → Chicago (Chicago Meigs Airport)
579 mi
931 km · 503 nm
1h 43m
estimated nonstop flight time
-1h
time difference · heading west
See live GAI→CGX fares Phone-only fares on this route — call free
Flight time details
579 miles nonstop takes roughly 1h 43m 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
- CGX — Chicago Meigs Airport · Chicago, 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 CGX
- ORD · Chicago O'Hare International Airport17 mi away
- MDW · Chicago Midway International Airport9 mi away
- GYY · Gary Chicago International Airport20 mi away
- PWK · Chicago Executive Airport23 mi away
Frequently asked questions
How far is GAI from CGX?
The flight distance from Gaithersburg (GAI) to Chicago (CGX) is 579 miles (931 km, 503 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to CGX?
A nonstop flight takes about 1h 43m 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 Chicago?
Chicago is 1 hour behind Gaithersburg.
What is the cheapest way to fly from GAI to CGX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–CGX that never appear on search engines, with no booking fees.