Need help booking?
Unpublished phone-only deals available
TRI to PHN: distance & flight time
BRISTOL (Tri-Cities Regional TN/VA Airport) → Port Huron (St Clair County International Airport)
445 mi
716 km · 386 nm
1h 26m
estimated nonstop flight time
Same time
time difference · heading north
See live TRI→PHN fares Phone-only fares on this route — call free
Flight time details
445 miles nonstop takes roughly 1h 26m gate to gate, flying north. 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
- TRI — Tri-Cities Regional TN/VA Airport · BRISTOL, 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 TRI
- MRN · Foothills Regional Airport63 mi away
- AVL · Asheville Regional Airport72 mi away
- IKB · Wilkes County Airport75 mi away
- HKY · Hickory Regional Airport76 mi away
Near PHN
Frequently asked questions
How far is TRI from PHN?
The flight distance from BRISTOL (TRI) to Port Huron (PHN) is 445 miles (716 km, 386 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TRI to PHN?
A nonstop flight takes about 1h 26m 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 TRI to PHN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TRI–PHN that never appear on search engines, with no booking fees.