GRU to IMP flight delays
São Paulo (GRU) Imperatriz (IMP)
520 flights · July 2024 – July 2026 · ANAC Brazil
66.53%
Arrived on time
Within 15 minutes of schedule
3.46%
Cancelled
Share of scheduled flights
32 min
When late, late by
Average across delayed arrivals
14 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In May it ran 46 points more punctual than in December — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Cancellation, not delay, is the risk worth pricing here: 3.46% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
The route has been getting worse. The later months run 16.6 points less punctual than the earlier ones. A drift of that size is rarely weather; it is more often an airline adding frequencies faster than the airports can absorb them.
Lateness here is frequent but mild: flights slip past the fifteen-minute line often, yet the average delay is only about 32 minutes. That is an annoyance rather than a broken plan, and it is a very different route from one with the same on-time rate and hour-long delays.
Which airline should you fly on this route?
Over July 2024 – July 2026, LATAM Brasil arrived on time most often on GRU to IMP. Flights ran closest to schedule in January and worst in December.
Every airline on GRU to IMP
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 | 520 | 66.53% | 3.46% | 32 min | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
IMP to GRU Imperatriz back to São Paulo 78.73% on time DOther routes from São Paulo
Common questions
Are flights from São Paulo to Imperatriz usually delayed?
66.53% of flights on the GRU to IMP route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from São Paulo to Imperatriz?
Only LATAM Brasil appears in the published record on this route, with 520 flights and 66.53% arriving on time.
How often are GRU to IMP flights cancelled?
3.46% of scheduled flights did not operate — about 35 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly São Paulo to Imperatriz?
May, when 83.9% of flights arrived on time. The worst was December at 37.9%.
When GRU to IMP 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 GRU to IMP during July 2024 – July 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 →