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OSH to GAI: distance & flight time
Oshkosh (Wittman Regional Airport) → Gaithersburg (Montgomery County Airpark)
675 mi
1,087 km · 587 nm
1h 56m
estimated nonstop flight time
+1h
time difference · heading southeast
See live OSH→GAI fares Phone-only fares on this route — call free
Flight time details
675 miles nonstop takes roughly 1h 56m gate to gate, flying southeast. 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
- OSH — Wittman Regional Airport · Oshkosh, 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 OSH
- FLD · Fond du Lac County Airport15 mi away
- ATW · Appleton International Airport19 mi away
- SBM · Sheboygan County Memorial Airport38 mi away
- GRB · Austin Straubel International Airport41 mi away
Near GAI
Frequently asked questions
How far is OSH from GAI?
The flight distance from Oshkosh (OSH) to Gaithersburg (GAI) is 675 miles (1,087 km, 587 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSH to GAI?
A nonstop flight takes about 1h 56m 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 Oshkosh and Gaithersburg?
Gaithersburg is 1 hour ahead of Oshkosh.
What is the cheapest way to fly from OSH to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSH–GAI that never appear on search engines, with no booking fees.