SLZ to GRU flight delays
São Luís (SLZ) São Paulo (GRU)
179 flights · January 2025 – August 2026 · ANAC Brazil
84.09%
Arrived on time
Within 15 minutes of schedule
1.68%
Cancelled
Share of scheduled flights
32 min
When late, late by
Average across delayed arrivals
7 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The two directions do not behave alike. GRU to SLZ arrives on time 7.8 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only LATAM Brasil flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from São Luís to São Paulo keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over January 2025 – August 2026, LATAM Brasil arrived on time most often on SLZ to GRU. Flights ran closest to schedule in August and worst in July.
Every airline on SLZ to GRU
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| LATAM Brasil | 124 | 79.67% | 0.81% | 33 min | C |
| Gol Linhas Aéreas | 55 | 94.34% | 3.64% | 25 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
GRU to SLZ São Paulo back to São Luís 76.25% on time COther routes from São Luís
Common questions
Are flights from São Luís to São Paulo usually delayed?
84.09% of flights on the SLZ to GRU route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from São Luís to São Paulo?
Only LATAM Brasil appears in the published record on this route, with 124 flights and 79.67% arriving on time.
How often are SLZ to GRU flights cancelled?
1.68% of scheduled flights did not operate — about 17 in every thousand. That is in the normal range.
When SLZ to GRU flights are late, how late are they?
About 32 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on SLZ to GRU during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →