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IAH to PHN: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Port Huron (St Clair County International Airport)
1,139 mi
1,834 km · 990 nm
2h 57m
estimated nonstop flight time
+1h
time difference · heading northeast
See live IAH→PHN fares Phone-only fares on this route — call free
Flight time details
1,139 miles nonstop takes roughly 2h 57m 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
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
- PHN — St Clair County International Airport · Port Huron, 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 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
Near PHN
Frequently asked questions
How far is IAH from PHN?
The flight distance from Houston (IAH) to Port Huron (PHN) is 1,139 miles (1,834 km, 990 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to PHN?
A nonstop flight takes about 2h 57m 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 Port Huron?
Port Huron is 1 hour ahead of Houston.
What is the cheapest way to fly from IAH to PHN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–PHN that never appear on search engines, with no booking fees.