Need help booking?
Unpublished phone-only deals available
PHN to DUC: distance & flight time
Port Huron (St Clair County International Airport) → Duncan (Halliburton Field)
1,014 mi
1,631 km · 881 nm
2h 40m
estimated nonstop flight time
-1h
time difference · heading southwest
See live PHN→DUC fares Phone-only fares on this route — call free
Flight time details
1,014 miles nonstop takes roughly 2h 40m 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
- DUC — Halliburton Field · Duncan, 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 DUC
Frequently asked questions
How far is PHN from DUC?
The flight distance from Port Huron (PHN) to Duncan (DUC) is 1,014 miles (1,631 km, 881 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to DUC?
A nonstop flight takes about 2h 40m 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 Duncan?
Duncan is 1 hour behind Port Huron.
What is the cheapest way to fly from PHN to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–DUC that never appear on search engines, with no booking fees.