Sao Paulo (GRU) → Sao Luis (SLZ)
A reference for the Guarulhos - Governador André Franco Montoro International Airport to Marechal Cunha Machado International Airport route. You'll find the operators on file, the great-circle geometry, the connecting options if no nonstop fits your dates, and a short profile of each endpoint airport.
The flight from Sao Paulo (GRU) to Sao Luis (SLZ) covers a great-circle distance of roughly 2,331 km (1,448 miles). Aircraft leave Guarulhos - Governador André Franco Montoro International Airport on an initial north heading. As domestic sectors go, this one sits in the long-haul bracket: long enough that most carriers run it as its own dedicated rotation, but short enough to fit inside a single crew duty period.
2 carriers file a direct GRU to SLZ sector, with Sky Express and TAM Brazilian Airlines among the operators on record. A route attracting this many carriers usually points to a city pair with both leisure and business demand, or a competitive hub-to-hub link where the airline alliances overlap on the same metal.
Operators on the GRU → SLZ direction
Carriers with at least one scheduled rotation on this sector in the OpenFlights dataset, ranked by the number of code-shared filings.
This is a long-haul sector. It's long enough that the heaviest rotations need wide-body aircraft, but short enough that twin-aisle types like the Airbus A330 and Boeing 787 carry the bulk of the traffic ahead of the larger 777 and A350. Plan for an in-flight meal service, an entertainment cycle, and a block time near 3h 29m.
If a nonstop doesn't match your dates, Brasilia (BSB), Rio De Janeiro (GIG), and Belo Horizonte (CNF) show up on both ends of the network and make the most natural connecting points. The connecting-hubs grid below extends that list to the eight strongest options, ranked by each airport's overall departure activity. That ranking is a fast proxy for how many onward flights a single stop is likely to feed.
Connecting hubs
Airports that already appear on both ends of this network. They're the natural one-stop options when no nonstop matches your dates, ranked by overall departure activity.
Both endpoints sit inside Brazil, so this is a domestic sector subject to local rules on baggage, identification, and security. Domestic flying often gets different tax treatment than international itineraries, so when you compare fares look at the all-in price (with domestic departure taxes included) rather than the base fare alone. See the Brazil routes index for other domestic pairs.
On the day of operation, the GRU to SLZ direction lifts off heading north, then the great-circle track curves to compensate for the Earth's rotation. The return SLZ to GRU sector heads south out of the gate, with 2 operators on file for the inbound side. Combine the two operator lists for a full picture of the city pair's competitive landscape.
Endpoints
Other routes from Sao Paulo (GRU)
Other destinations served from the same origin. Handy for combining trips or for finding an alternate first leg.
Other routes into Sao Luis (SLZ)
Other origins that already file scheduled service into the destination airport.
Reading this route page
The operator list reflects scheduled-route filings in the OpenFlights dataset, not real-time availability. A carrier appearing here publishes a scheduled service on this sector. It isn't a live timetable, and the actual flight numbers, frequencies, and aircraft types shift season to season. For booking and current schedules, cross-reference the airline page above with the carrier's own website.
Distance here is the great-circle arc between the two airports' published coordinates. Real flight tracks wander off that line because of wind, ATC routings, oceanic crossings, and political airspace constraints. Block time is an estimate covering ground taxi, climb, cruise at typical jet speeds, and descent. Real block times shift with aircraft type, weather, and traffic, so treat the stat-strip number as a planning indicator rather than a published flight time.