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GAI to FSD: distance & flight time
Gaithersburg (Montgomery County Airpark) → Sioux Falls (Joe Foss Field Airport)
1,057 mi
1,701 km · 918 nm
2h 46m
estimated nonstop flight time
-1h
time difference · heading northwest
See live GAI→FSD fares Phone-only fares on this route — call free
Flight time details
1,057 miles nonstop takes roughly 2h 46m gate to gate, flying northwest. 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
- FSD — Joe Foss Field Airport · Sioux Falls, 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 FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Frequently asked questions
How far is GAI from FSD?
The flight distance from Gaithersburg (GAI) to Sioux Falls (FSD) is 1,057 miles (1,701 km, 918 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to FSD?
A nonstop flight takes about 2h 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 Sioux Falls?
Sioux Falls is 1 hour behind Gaithersburg.
What is the cheapest way to fly from GAI to FSD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–FSD that never appear on search engines, with no booking fees.