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AUO to PHN: distance & flight time
Auburn (Auburn University Regional Airport) → Port Huron (St Clair County International Airport)
729 mi
1,173 km · 633 nm
2h 3m
estimated nonstop flight time
+1h
time difference · heading north
See live AUO→PHN fares Phone-only fares on this route — call free
Flight time details
729 miles nonstop takes roughly 2h 3m gate to gate, flying north. 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
- AUO — Auburn University Regional Airport · Auburn, 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 AUO
- CSG · Columbus Metropolitan Airport30 mi away
- LSF · Lawson Army Air Field (Fort Benning)32 mi away
- LGC · LaGrange Callaway Airport34 mi away
- PIM · Harris County Airport36 mi away
Near PHN
Frequently asked questions
How far is AUO from PHN?
The flight distance from Auburn (AUO) to Port Huron (PHN) is 729 miles (1,173 km, 633 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from AUO to PHN?
A nonstop flight takes about 2h 3m 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 Auburn and Port Huron?
Port Huron is 1 hour ahead of Auburn.
What is the cheapest way to fly from AUO to PHN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on AUO–PHN that never appear on search engines, with no booking fees.