DL847 · SLC → IAD

Delta Air Lines · Salt Lake City to Washington Dulles · last 12 months · 364 flights tracked

80.7%on-time

DL847 SLC→IAD: 80.7% on-time over 364 flights (last 12 months) — solid. It trails the route average (84.4%) by 3.7 points. Best day to fly: Tue (92.2%); worst: Fri (71.2%). Seasonality matters: Dec is the most reliable month (93.3%), Jul the worst (45.2%). Cancellation rate is 1.6% — have a backup plan. Average arrival delay: 11.8 minutes.

Data: US BTS, last 12 months.

11.8 minavg arrival delay

1.6%cancelled

0diverted

364flights tracked

Arrival delay distribution

Early/on time · 2381–60 min · 9861–180 min · 20180+ min · 2

On-time by day of week

Mon

82.4%

Tue

92.2%

Wed

88.2%

Thu

76.5%

Fri

71.2%

Sat

82.7%

Sun

72.0%

On-time by month

86.7%

Sep

80.6%

Oct

93.1%

Nov

93.3%

Dec

82.8%

Jan

92.3%

Feb

80.0%

Mar

90.0%

Apr

80.6%

May

90.0%

Jun

45.2%

Jul

58.1%

Aug

← All flights on SLC–IAD