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Reliability
Flight Reliability
Washington to Philadelphia
This chart shows airline reliability for each hour of the day between Washington 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
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
0%
20%
40%
60%
80%
United
United
United