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PHN to CSM: distance & flight time
Port Huron (St Clair County International Airport) → Clinton (Clinton Sherman Airport)
1,033 mi
1,662 km · 897 nm
2h 43m
estimated nonstop flight time
-1h
time difference · heading southwest
See live PHN→CSM fares Phone-only fares on this route — call free
Flight time details
1,033 miles nonstop takes roughly 2h 43m 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
- PHN — St Clair County International Airport · Port Huron, United States
- CSM — Clinton Sherman Airport · Clinton, 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 mi away
Frequently asked questions
How far is PHN from CSM?
The flight distance from Port Huron (PHN) to Clinton (CSM) is 1,033 miles (1,662 km, 897 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to CSM?
A nonstop flight takes about 2h 43m 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 Port Huron and Clinton?
Clinton is 1 hour behind Port Huron.
What is the cheapest way to fly from PHN to CSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–CSM that never appear on search engines, with no booking fees.