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Flight Number
Date
Mon, 7 Sept, 2026
Check Status
DL 3991 Flight Status
Delta Air Lines
DL 3991
17:51
Seattle
2h:28m
20:19
San Francisco
ON TIME
SELECT
Delta Air Lines
DL 3991
20:59
San Francisco
2h:20m
23:19
Seattle
ON TIME
SELECT
Delta Air LinesDL 399117:51Seattle2h:28m20:19San FranciscoON TIMEDelta Air LinesDL 399120:59San Francisco2h:20m23:19SeattleON TIME