GRU to ASU flight delays
São Paulo (GRU) Asunción (ASU)
450 flights · July 2024 – July 2026 · ANAC Brazil
74.89%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
37 min
When late, late by
Average across delayed arrivals
12 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In January it ran 51.1 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 21.2 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. ASU to GRU arrives on time 8.7 points more 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 GRU to ASU. Flights ran closest to schedule in October and worst in December.
Every airline on GRU to ASU
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 | 445 | 75.06% | 0% | 37 min | C |
| LATAM Brasil | 5 | 60% | 0% | 42 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ASU to GRU Asunción back to São Paulo 83.56% on time BOther routes from São Paulo
Common questions
Are flights from São Paulo to Asunción usually delayed?
74.89% of flights on the GRU to ASU route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from São Paulo to Asunción?
Only Gol Linhas Aéreas appears in the published record on this route, with 445 flights and 75.06% arriving on time.
How often are GRU to ASU flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
What is the best month to fly São Paulo to Asunción?
January, when 96.3% of flights arrived on time. The worst was April at 45.2%.
When GRU to ASU flights are late, how late are they?
About 37 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 ASU 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 →