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PHN to GSP: distance & flight time
Port Huron (St Clair County International Airport) → Greenville (Greenville Spartanburg International Airport)
554 mi
892 km · 481 nm
1h 40m
estimated nonstop flight time
Same time
time difference · heading south
See live PHN→GSP fares Phone-only fares on this route — call free
Flight time details
554 miles nonstop takes roughly 1h 40m gate to gate, flying south. 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
- GSP — Greenville Spartanburg International Airport · Greenville, 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 GSP
- GMU · Greenville Downtown Airport8 mi away
- GDC · Donaldson Field Airport13 mi away
- SPA · Spartanburg Downtown Memorial Airport15 mi away
- CLT · Charlotte Douglas International Airport75 mi away
Frequently asked questions
How far is PHN from GSP?
The flight distance from Port Huron (PHN) to Greenville (GSP) is 554 miles (892 km, 481 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to GSP?
A nonstop flight takes about 1h 40m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from PHN to GSP?
Nonstop service on PHN–GSP depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 40m nonstop estimate.
What is the cheapest way to fly from PHN to GSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–GSP that never appear on search engines, with no booking fees.
Why are some PHN to GSP fares phone-only?
Consolidator contracts let us sell certain PHN–GSP tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.