DL870 · SEA → DFW

Delta Air Lines · Seattle to Dallas/Fort Worth · last 12 months · 356 flights tracked

74.0%on-time

DL870 SEA→DFW: 74.0% on-time over 356 flights (last 12 months) — average. It trails the route average (78.0%) by 4.0 points. Best day to fly: Wed (84.0%); worst: Sun (61.2%). Seasonality matters: Mar is the most reliable month (86.2%), Jun the worst (53.6%). Cancellation rate is 2.2% — have a backup plan. Average arrival delay: 20.4 minutes.

Data: US BTS, last 12 months.

20.4 minavg arrival delay

2.2%cancelled

2diverted

356flights tracked

Arrival delay distribution

Early/on time · 2031–60 min · 11861–180 min · 16180+ min · 9

On-time by day of week

Mon

66.0%

Tue

79.6%

Wed

84.0%

Thu

78.0%

Fri

72.0%

Sat

77.1%

Sun

61.2%

On-time by month

76.7%

Sep

66.7%

Oct

83.3%

Nov

66.7%

Dec

65.4%

Jan

82.1%

Feb

86.2%

Mar

73.3%

Apr

82.8%

May

53.6%

Jun

66.7%

Jul

77.4%

Aug

← All flights on SEA–DFW