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PHN to IAD: distance & flight time
Port Huron (St Clair County International Airport) → Washington (Washington Dulles International Airport)
381 mi
613 km · 331 nm
1h 28m
estimated nonstop flight time
Same time
time difference · heading southeast
See live PHN→IAD fares Phone-only fares on this route — call free
Flight time details
381 miles nonstop takes roughly 1h 28m gate to gate, flying southeast. 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
- IAD — Washington Dulles International Airport · Washington, 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
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Near PHN
Frequently asked questions
How far is PHN from IAD?
The flight distance from Port Huron (PHN) to Washington (IAD) is 381 miles (613 km, 331 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to IAD?
A nonstop flight takes about 1h 28m 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 cheapest way to fly from PHN to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–IAD that never appear on search engines, with no booking fees.