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IWS to PSM: distance & flight time
Houston (West Houston Airport) → Portsmouth (Portsmouth International at Pease Airport)
1,647 mi
2,651 km · 1,431 nm
3h 42m
estimated nonstop flight time
+1h
time difference · heading northeast
See live IWS→PSM fares Phone-only fares on this route — call free
Flight time details
1,647 miles nonstop takes roughly 3h 42m gate to gate, flying northeast. 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
- IWS — West Houston Airport · Houston, United States
- PSM — Portsmouth International at Pease 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 IWS
- IAH · George Bush Intercontinental Houston Airport23 mi away
- AAP · Andrau Airpark8 mi away
- SGR · Sugar Land Regional Airport14 mi away
- DWH · David Wayne Hooks Memorial Airport18 mi away
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
Frequently asked questions
How far is IWS from PSM?
The flight distance from Houston (IWS) to Portsmouth (PSM) is 1,647 miles (2,651 km, 1,431 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWS to PSM?
A nonstop flight takes about 3h 42m 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 Houston and Portsmouth?
Portsmouth is 1 hour ahead of Houston.
What is the cheapest way to fly from IWS to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWS–PSM that never appear on search engines, with no booking fees.