Need help booking?
Unpublished phone-only deals available
GAI to DPA: distance & flight time
Gaithersburg (Montgomery County Airpark) → West Chicago (Dupage Airport)
611 mi
984 km · 531 nm
1h 48m
estimated nonstop flight time
-1h
time difference · heading west
See live GAI→DPA fares Phone-only fares on this route — call free
Flight time details
611 miles nonstop takes roughly 1h 48m 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
- DPA — Dupage Airport · West 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 DPA
- ORD · Chicago O'Hare International Airport18 mi away
- LOT · Lewis University Airport22 mi away
- PWK · Chicago Executive Airport23 mi away
- MDW · Chicago Midway International Airport27 mi away
Frequently asked questions
How far is GAI from DPA?
The flight distance from Gaithersburg (GAI) to West Chicago (DPA) is 611 miles (984 km, 531 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to DPA?
A nonstop flight takes about 1h 48m 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 West Chicago?
West Chicago is 1 hour behind Gaithersburg.
What is the cheapest way to fly from GAI to DPA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–DPA that never appear on search engines, with no booking fees.