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DUC to PHN: distance & flight time
Duncan (Halliburton Field) → Port Huron (St Clair County International Airport)
1,014 mi
1,631 km · 881 nm
2h 40m
estimated nonstop flight time
+1h
time difference · heading northeast
See live DUC→PHN fares Phone-only fares on this route — call free
Flight time details
1,014 miles nonstop takes roughly 2h 40m gate to gate, flying northeast. 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
- DUC — Halliburton Field · Duncan, 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 DUC
Near PHN
Frequently asked questions
How far is DUC from PHN?
The flight distance from Duncan (DUC) to Port Huron (PHN) 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 DUC to PHN?
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.
Are there nonstop flights from DUC to PHN?
Nonstop service on DUC–PHN 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 2h 40m nonstop estimate.
What is the time difference between Duncan and Port Huron?
Port Huron is 1 hour ahead of Duncan.
What is the cheapest way to fly from DUC to PHN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DUC–PHN that never appear on search engines, with no booking fees.
Why are some DUC to PHN fares phone-only?
Consolidator contracts let us sell certain DUC–PHN 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.