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(UA) United Airlines 2631 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(BOS) Boston Logan International Airport

Boston, MA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
20
95%
Late
0
0%
Very Late
0
0%
Excessive
0
0%
Cancelled
1
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
21
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
7.333333333333333
Standard Deviation
3.2
Min
0
Max
11

UA 2631 On-Time Performance Details

Overall Rating
4.4 of 5
Good
Percentage On-Time 95%
Average Delay Time 7.333333333333333 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.4 shows that this flight has on-time performance characteristics better than 87% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 95%
This flight has an on-time performance of 95%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 7.333333333333333 min
This flight has an average delay of 7.333333333333333 minutes with a standard deviation of 3.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.

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