DL521 · LAX → DFW

Delta Air Lines · Los Angeles to Dallas/Fort Worth · last 12 months · 353 flights tracked

89.3%on-time

DL521 LAX→DFW: 89.3% on-time over 353 flights (last 12 months) — excellent. Best day to fly: Fri (94.0%); worst: Thu (82.0%). Seasonality matters: Oct is the most reliable month (96.8%), Jun the worst (77.8%). Cancellation rate is 1.7% — have a backup plan. Average arrival delay: 9.6 minutes.

Data: US BTS, last 12 months.

9.6 minavg arrival delay

1.7%cancelled

1diverted

353flights tracked

Arrival delay distribution

Early/on time · 2571–60 min · 7761–180 min · 7180+ min · 5

On-time by day of week

Mon

84.6%

Tue

90.0%

Wed

93.9%

Thu

82.0%

Fri

94.0%

Sat

89.1%

Sun

91.8%

On-time by month

90.0%

Sep

96.8%

Oct

81.5%

Nov

87.1%

Dec

83.3%

Jan

91.7%

Feb

86.2%

Mar

93.3%

Apr

90.0%

May

77.8%

Jun

96.3%

Jul

93.5%

Aug

← All flights on LAX–DFW