Need help booking?
Unpublished phone-only deals available
SUS to OPO: distance & flight time
Null (Spirit of St Louis Airport) → Porto (Francisco de Sá Carneiro Airport)
4,173 mi
6,716 km · 3,627 nm
8h 39m
estimated nonstop flight time
+6h
time difference · heading northeast
See live SUS→OPO fares Phone-only fares on this route — call free
Flight time details
4,173 miles nonstop takes roughly 8h 39m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- SUS — Spirit of St Louis Airport · Null, United States
- OPO — Francisco de Sá Carneiro Airport · Porto, Portugal
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 SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
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
Frequently asked questions
How far is SUS from OPO?
The flight distance from Null (SUS) to Porto (OPO) is 4,173 miles (6,716 km, 3,627 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SUS to OPO?
A nonstop flight takes about 8h 39m 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 Null and Porto?
Porto is 6 hours ahead of Null.
What is the cheapest way to fly from SUS to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SUS–OPO that never appear on search engines, with no booking fees.