WN4583 · IAD → DEN

Southwest Airlines · Washington Dulles to Denver · last 12 months · 55 flights tracked

84.9%on-time

WN4583 IAD→DEN: 84.9% on-time over 55 flights (last 12 months) — solid. It beats the route average (83.1%) by 1.8 points. Best day to fly: Fri (100.0%); worst: Wed (77.8%). Cancellation rate is 3.6% — have a backup plan. Average arrival delay: 8.9 minutes.

Data: US BTS, last 12 months.

8.9 minavg arrival delay

3.6%cancelled

0diverted

55flights tracked

Arrival delay distribution

Early/on time · 351–60 min · 1561–180 min · 3180+ min · 0

On-time by day of week

Mon

100.0%

Tue

88.9%

Wed

77.8%

Thu

87.5%

Fri

100.0%

Sat

80.0%

Sun

57.1%

On-time by month

91.7%

Jan

80.0%

Feb

75.0%

Mar

← All flights on IAD–DEN