UA1665 · UAL1665

UAL1665 over the last 30 days

As of 2026-10-29

UAL1665 is operated by United Airlines on the route San Francisco International Airport (SFO/KSFO) → Boston Logan International Airport (BOS/KBOS). It usually takes off around 06:39 UTC (23:39 local time, SFO). It usually lands around 11:43 UTC (07:43 local time, BOS). Most frequent aircraft type: BOEING 737 MAX 9 (B39M).

Days with an observed flight (last 30 days)

29/30

Days of the week with an observed flight

Mon, Tue, Wed, Thu, Fri, Sat, Sun

Typical take-off

06:39 UTC · 23:39 local time (SFO)

Typical landing

11:43 UTC · 07:43 local time (BOS)

Typical time airborne

305 min

Median departure deviation from the usual time on this route

+8 min

Departures within 15 minutes of the usual time

57 %

Departures measured

65

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)

• BOEING 737 MAX 9 (B39M) — Number of flights: 41
• BOEING 757-200 (B752) — Number of flights: 9

Aircraft in the last 7 days

• N17122 · BOEING 757-200 2026-10-29
• N19141 · BOEING 757-200 2026-10-28
• N14120 · BOEING 757-200 2026-10-27
• N19117 · BOEING 757-200 2026-10-26
• N19130 · BOEING 757-200 2026-10-25
• N67501 · BOEING 737 MAX 9 2026-10-24

Related flights on this route

• All flights KSFO – KBOS