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OPO to SAT: distance & flight time
Porto (Francisco de Sá Carneiro Airport) → San Antonio (San Antonio International Airport)
4,898 mi
7,882 km · 4,256 nm
10h 4m
estimated nonstop flight time
-6h
time difference · heading northwest
See live OPO→SAT fares Phone-only fares on this route — call free
Flight time details
4,898 miles nonstop takes roughly 10h 4m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
- 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 OPO
- BGZ · Braga Municipal Aerodrome26 mi away
- VRL · Vila Real Airport50 mi away
- VSE · Aerodromo Goncalves Lobato (Viseu Airport)55 mi away
- VGO · Vigo Airport68 mi away
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 OPO from SAT?
The flight distance from Porto (OPO) to San Antonio (SAT) is 4,898 miles (7,882 km, 4,256 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OPO to SAT?
A nonstop flight takes about 10h 4m 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 Porto and San Antonio?
San Antonio is 6 hours behind Porto.
What is the cheapest way to fly from OPO to SAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OPO–SAT that never appear on search engines, with no booking fees.