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PHN to SAT: distance & flight time
Port Huron (St Clair County International Airport) → San Antonio (San Antonio International Airport)
1,278 mi
2,056 km · 1,110 nm
3h 15m
estimated nonstop flight time
-1h
time difference · heading southwest
See live PHN→SAT fares Phone-only fares on this route — call free
Flight time details
1,278 miles nonstop takes roughly 3h 15m 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
- SAT — San Antonio International Airport · San Antonio, 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 SAT
- RND · Randolph Air Force Base11 mi away
- SKF · Lackland Air Force Base12 mi away
- SSF · Stinson Municipal Airport14 mi away
- AUS · Austin Bergstrom International Airport66 mi away
Frequently asked questions
How far is PHN from SAT?
The flight distance from Port Huron (PHN) to San Antonio (SAT) is 1,278 miles (2,056 km, 1,110 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to SAT?
A nonstop flight takes about 3h 15m 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 San Antonio?
San Antonio is 1 hour behind Port Huron.
What is the cheapest way to fly from PHN to SAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–SAT that never appear on search engines, with no booking fees.