Need help booking?
Unpublished phone-only deals available
OSH to PMH: distance & flight time
Oshkosh (Wittman Regional Airport) → Portsmouth (Greater Portsmouth Regional Airport)
462 mi
744 km · 402 nm
1h 28m
estimated nonstop flight time
—
time difference · heading southeast
See live OSH→PMH fares Phone-only fares on this route — call free
Flight time details
462 miles nonstop takes roughly 1h 28m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OSH — Wittman Regional Airport · Oshkosh, United States
- PMH — Greater Portsmouth Regional Airport · Portsmouth, 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 PMH
- HTS · Tri-State/Milton J. Ferguson Field36 mi away
- ATO · Ohio University Snyder Field42 mi away
- ILN · Wilmington Airpark65 mi away
- LCK · Rickenbacker International Airport67 mi away
Frequently asked questions
How far is OSH from PMH?
The flight distance from Oshkosh (OSH) to Portsmouth (PMH) is 462 miles (744 km, 402 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSH to PMH?
A nonstop flight takes about 1h 28m 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 cheapest way to fly from OSH to PMH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSH–PMH that never appear on search engines, with no booking fees.