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(UA) United Airlines 677 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-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
24
77%
Late
0
0%
Very Late
2
6%
Excessive
4
13%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
31
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
45.2
Standard Deviation
46
Min
0
Max
138

UA 677 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 77%
Average Delay Time 45.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 44% of all other flights in the FlightStats database.
On-Time Performance Rating
3.3 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 66% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 45.2 min
This flight has an average delay of 45.2 minutes with a standard deviation of 46 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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