UA677 · UAL677

UAL677 over the last 30 days

As of 2026-10-29

UAL677 is operated by United Airlines on the route Seattle–Tacoma International Airport (SEA/KSEA) → San Francisco International Airport (SFO/KSFO). It usually takes off around 00:35 UTC (17:35 local time, SEA). It usually lands around 02:18 UTC (19:18 local time, SFO). Most frequent aircraft type: AIRBUS A-319 (A319).

Days with an observed flight (last 30 days)

16/30

Days of the week with an observed flight

Mon, Wed, Sun

Typical take-off

00:35 UTC · 17:35 local time (SEA)

Typical landing

02:18 UTC · 19:18 local time (SFO)

Typical time airborne

103 min

Median departure deviation from the usual time on this route

+6 min

Departures within 15 minutes of the usual time

64 %

Departures measured

86

Our measurement against the usual departure time of the route, from our own observations over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• AIRBUS A-319 (A319) — Number of flights: 8
• BOEING 737-700 (B737) — Number of flights: 7
• BOEING 737 MAX 8 (B38M) — Number of flights: 3

Aircraft in the last 7 days

• N495UA · AIRBUS A-320 2026-10-29
• N37536 · BOEING 737 MAX 8 2026-10-27
• N811UA · AIRBUS A-319 2026-10-27
• N37447 · BOEING 737 MAX 9 2026-10-26
• N831UA · AIRBUS A-319 2026-10-26
• N16732 · BOEING 737-700 2026-10-25

Related flights on this route

• All flights KSEA – KSFO