Need help booking?
Unpublished phone-only deals available
DSM to GAI: distance & flight time
Des Moines (Des Moines International Airport) → Gaithersburg (Montgomery County Airpark)
882 mi
1,420 km · 767 nm
2h 23m
estimated nonstop flight time
+1h
time difference · heading east
See live DSM→GAI fares Phone-only fares on this route — call free
Flight time details
882 miles nonstop takes roughly 2h 23m 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
- DSM — Des Moines International Airport · Des Moines, 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 DSM
- OTM · Ottumwa Regional Airport70 mi away
- FOD · Fort Dodge Regional Airport75 mi away
- ALO · Waterloo Regional Airport96 mi away
- CID · The Eastern Iowa Airport104 mi away
Near GAI
Frequently asked questions
How far is DSM from GAI?
The flight distance from Des Moines (DSM) to Gaithersburg (GAI) is 882 miles (1,420 km, 767 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DSM to GAI?
A nonstop flight takes about 2h 23m 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 Des Moines and Gaithersburg?
Gaithersburg is 1 hour ahead of Des Moines.
What is the cheapest way to fly from DSM to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DSM–GAI that never appear on search engines, with no booking fees.