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PHN to SFZ: distance & flight time
Port Huron (St Clair County International Airport) → Smithfield (North Central State Airport)
567 mi
912 km · 492 nm
1h 42m
estimated nonstop flight time
Same time
time difference · heading east
See live PHN→SFZ fares Phone-only fares on this route — call free
Flight time details
567 miles nonstop takes roughly 1h 42m gate to gate, flying east. 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
- PHN — St Clair County International Airport · Port Huron, United States
- SFZ — North Central State Airport · Smithfield, 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 PHN
Near SFZ
- BOS · General Edward Lawrence Logan International Airport39 mi away
- PVD · Theodore Francis Green State Airport14 mi away
- NCO · Quonset State Airport23 mi away
- OWD · Norwood Memorial Airport25 mi away
Frequently asked questions
How far is PHN from SFZ?
The flight distance from Port Huron (PHN) to Smithfield (SFZ) is 567 miles (912 km, 492 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to SFZ?
A nonstop flight takes about 1h 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 cheapest way to fly from PHN to SFZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–SFZ that never appear on search engines, with no booking fees.