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CGX to GAI: distance & flight time
Chicago (Chicago Meigs Airport) → Gaithersburg (Montgomery County Airpark)
579 mi
931 km · 503 nm
1h 43m
estimated nonstop flight time
+1h
time difference · heading east
See live CGX→GAI fares Phone-only fares on this route — call free
Flight time details
579 miles nonstop takes roughly 1h 43m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- CGX — Chicago Meigs Airport · Chicago, United States
- 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 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
Near GAI
Frequently asked questions
How far is CGX from GAI?
The flight distance from Chicago (CGX) to Gaithersburg (GAI) is 579 miles (931 km, 503 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CGX to GAI?
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 Chicago and Gaithersburg?
Gaithersburg is 1 hour ahead of Chicago.
What is the cheapest way to fly from CGX to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CGX–GAI that never appear on search engines, with no booking fees.