AS409 · IAD → SEA

Alaska Airlines · Washington Dulles to Seattle · last 12 months · 131 flights tracked

66.7%on-time

AS409 IAD→SEA: 66.7% on-time over 131 flights (last 12 months) — average. It trails the route average (77.7%) by 11.0 points. Best day to fly: Wed (81.2%); worst: Sun (55.0%). Seasonality matters: Jul is the most reliable month (96.8%), Dec the worst (14.3%). Cancellation rate is 1.5% — have a backup plan. Average arrival delay: 18.1 minutes.

Data: US BTS, last 12 months.

18.1 minavg arrival delay

1.5%cancelled

0diverted

131flights tracked

Arrival delay distribution

Early/on time · 651–60 min · 5261–180 min · 11180+ min · 1

On-time by day of week

Mon

61.9%

Tue

64.7%

Wed

81.2%

Thu

77.8%

Fri

63.2%

Sat

66.7%

Sun

55.0%

On-time by month

60.0%

Oct

59.3%

Nov

14.3%

Dec

33.3%

Jan

76.2%

Jun

96.8%

Jul

88.9%

Aug

← All flights on IAD–SEA