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PSM to HLN: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Helena (Helena Regional Airport)
2,008 mi
3,232 km · 1,745 nm
4h 24m
estimated nonstop flight time
-2h
time difference · heading west
See live PSM→HLN fares Phone-only fares on this route — call free
Flight time details
2,008 miles nonstop takes roughly 4h 24m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- HLN — Helena Regional Airport · Helena, 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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
Near HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Frequently asked questions
How far is PSM from HLN?
The flight distance from Portsmouth (PSM) to Helena (HLN) is 2,008 miles (3,232 km, 1,745 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to HLN?
A nonstop flight takes about 4h 24m 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 Portsmouth and Helena?
Helena is 2 hours behind Portsmouth.
What is the cheapest way to fly from PSM to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–HLN that never appear on search engines, with no booking fees.