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Reliability
Flight Reliability
San Francisco to Portland
This chart shows airline reliability for each hour of the day between San Francisco and Portland. 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
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
0%
20%
40%
60%
80%
Alaska
United
Alaska
United
Alaska
United
United
Alaska
Frontier
United
Alaska
Alaska
United
Alaska
Alaska
Alaska
Alaska
Alaska
Alaska
Alaska
Frontier
United
United
Alaska
Alaska