background

(AY) Finnair 4237 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(CHS) Charleston International Airport

Charleston, SC, US

(DFW) Dallas Fort Worth International Airport

Dallas, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
47
77%
Late
4
7%
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
60
Total Delays ( > 1 min )
15
Codeshares
60
Average Delay (min.)
54.6
Standard Deviation
55.2
Min
0
Max
184

AY 4237 On-Time Performance Details

Overall Rating
1.3 of 5
Poor
Percentage On-Time 78%
Average Delay Time 54.6 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.3 shows that this flight has on-time performance characteristics better than 25% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 54.6 min
This flight has an average delay of 54.6 minutes with a standard deviation of 55.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 5% of other flights.