UA1577 · SFO → SEA

United Airlines · San Francisco to Seattle · last 12 months · 111 flights tracked

68.2%on-time

UA1577 SFO→SEA: 68.2% on-time over 111 flights (last 12 months) — average. It trails the route average (72.3%) by 4.1 points. Best day to fly: Sat (100.0%); worst: Thu (47.1%). Seasonality matters: May is the most reliable month (72.7%), Jul the worst (63.3%). Average arrival delay: 17.9 minutes.

Data: US BTS, last 12 months.

17.9 minavg arrival delay

0.9%cancelled

0diverted

111flights tracked

Arrival delay distribution

Early/on time · 551–60 min · 4661–180 min · 7180+ min · 2

On-time by day of week

Mon

62.5%

Tue

80.0%

Wed

60.0%

Thu

47.1%

Fri

64.7%

Sat

100.0%

Sun

66.7%

On-time by month

83.3%

Sep

70.8%

Oct

72.7%

May

66.7%

Jun

63.3%

Jul

66.7%

Aug

← All flights on SFO–SEA