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Reliability
Flight Reliability
Portland to Philadelphia
This chart shows airline reliability for each hour of the day between Portland and Philadelphia. Reliability is defined as the percentage of flights that took off within 20 minutes of the scheduled time.
Airlines to the right are more reliable.
Reliability
9p
10p
11p
12p
1a
2a
0%
20%
40%
60%
80%
American
American
American