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PSM to IAH: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Houston (George Bush Intercontinental Houston Airport)
1,625 mi
2,615 km · 1,412 nm
3h 39m
estimated nonstop flight time
-1h
time difference · heading southwest
See live PSM→IAH fares Phone-only fares on this route — call free
Flight time details
1,625 miles nonstop takes roughly 3h 39m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- IAH — George Bush Intercontinental Houston Airport · Houston, 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 IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
Frequently asked questions
How far is PSM from IAH?
The flight distance from Portsmouth (PSM) to Houston (IAH) is 1,625 miles (2,615 km, 1,412 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to IAH?
A nonstop flight takes about 3h 39m 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 Houston?
Houston is 1 hour behind Portsmouth.
What is the cheapest way to fly from PSM to IAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–IAH that never appear on search engines, with no booking fees.