background

(UA) United Airlines 988 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(FRA) Frankfurt Airport

Frankfurt, DE

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
36
59%
Late
12
20%
Very Late
4
7%
Excessive
6
10%
Cancelled
1
2%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
34
Codeshares
0
Average Delay (min.)
26.08823529411765
Standard Deviation
23
Min
0
Max
122

UA 988 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 60%
Average Delay Time 26.08823529411765 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 37% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 26.08823529411765 min
This flight has an average delay of 26.08823529411765 minutes with a standard deviation of 23 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.