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GAI to CMI: distance & flight time
Gaithersburg (Montgomery County Airpark) → Champaign (University of Illinois Willard Airport)
594 mi
956 km · 516 nm
1h 46m
estimated nonstop flight time
-1h
time difference · heading west
See live GAI→CMI fares Phone-only fares on this route — call free
Flight time details
594 miles nonstop takes roughly 1h 46m 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
- CMI — University of Illinois Willard Airport · Champaign, 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
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Near GAI
Near CMI
Frequently asked questions
How far is GAI from CMI?
The flight distance from Gaithersburg (GAI) to Champaign (CMI) is 594 miles (956 km, 516 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to CMI?
A nonstop flight takes about 1h 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 Gaithersburg and Champaign?
Champaign is 1 hour behind Gaithersburg.
What is the cheapest way to fly from GAI to CMI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–CMI that never appear on search engines, with no booking fees.