ASU to GRU flight delays
Asunción (ASU) São Paulo (GRU)
451 flights · July 2024 – July 2026 · ANAC Brazil
83.56%
Arrived on time
Within 15 minutes of schedule
0.22%
Cancelled
Share of scheduled flights
43 min
When late, late by
Average across delayed arrivals
8 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In November it ran 38.6 points more punctual than in April — 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.
The route has been getting worse. The later months run 15.9 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.
The two directions do not behave alike. GRU to ASU arrives on time 8.7 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 Gol Linhas Aéreas 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.
Which airline should you fly on this route?
Over July 2024 – July 2026, Gol Linhas Aéreas arrived on time most often on ASU to GRU. Flights ran closest to schedule in October and worst in December.
Every airline on ASU 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 |
|---|---|---|---|---|---|
| Gol Linhas Aéreas | 446 | 83.82% | 0.22% | 44 min | B |
| LATAM Brasil | 5 | 60% | 0% | 28 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
GRU to ASU São Paulo back to Asunción 74.89% on time COther routes from Asunción
Common questions
Are flights from Asunción to São Paulo usually delayed?
83.56% of flights on the ASU 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 Asunción to São Paulo?
Only Gol Linhas Aéreas appears in the published record on this route, with 446 flights and 83.82% arriving on time.
How often are ASU to GRU flights cancelled?
0.22% of scheduled flights did not operate — about 2 in every thousand. That is in the normal range.
What is the best month to fly Asunción to São Paulo?
November, when 96.7% of flights arrived on time. The worst was April at 58.1%.
When ASU to GRU flights are late, how late are they?
About 43 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 ASU to GRU 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 →