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PMH to GTF: distance & flight time
Portsmouth (Greater Portsmouth Regional Airport) → Great Falls (Great Falls International Airport)
1,546 mi
2,487 km · 1,343 nm
3h 30m
estimated nonstop flight time
—
time difference · heading northwest
See live PMH→GTF fares Phone-only fares on this route — call free
Flight time details
1,546 miles nonstop takes roughly 3h 30m gate to gate, flying northwest. 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
- PMH — Greater Portsmouth Regional Airport · Portsmouth, United States
- GTF — Great Falls International Airport · Great 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 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
Near GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Frequently asked questions
How far is PMH from GTF?
The flight distance from Portsmouth (PMH) to Great Falls (GTF) is 1,546 miles (2,487 km, 1,343 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PMH to GTF?
A nonstop flight takes about 3h 30m 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 PMH to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PMH–GTF that never appear on search engines, with no booking fees.