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(OS) Austrian 7851 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(LHR) London Heathrow Airport

London, EN, GB

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
46
74%
Late
6
10%
Very Late
1
2%
Excessive
6
10%
Cancelled
2
3%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
25
Codeshares
61
Average Delay (min.)
31.96
Standard Deviation
37.5
Min
0
Max
125

OS 7851 On-Time Performance Details

Overall Rating
2.0 of 5
Average
Percentage On-Time 75%
Average Delay Time 31.96 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 39% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 75%
This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 31.96 min
This flight has an average delay of 31.96 minutes with a standard deviation of 37.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.