Is UA1665 delayed?

Service date: Sep 16, 2026 · Scheduled departure date (America/Los_Angeles)

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Departure

San Francisco

SFO

Scheduled

23:41

Sep 16

Arrival

Boston

BOS

Scheduled

08:09

Sep 17

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 17, 2026, 06:41 UTC
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 17, 2026, 12:09 UTC
Estimated: Not available
Actual: Not available

View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

Wed, Sep 16, 2026
SFO → BOS
53 min early
Tue, Sep 15, 2026
SFO → BOS
23 min early
Mon, Sep 14, 2026
SFO → BOS
43 min early
Sun, Sep 13, 2026
ONT → SFO
14 min late
Sun, Sep 13, 2026
SFO → BOS
42 min early

Flight history and details

Aug 17, 2026 — Sep 16, 2026

Observed arrivals: 18
Arrivals over 15 minutes late: 1
Observed cancellations: 0
Observed occurrences: 34

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

UA1665 Recent arrival history
Service date	Departure	Arrival	Actual	Arrival delay (minutes)
Sep 15, 2026Arrived	San Francisco	Boston	Sep 16, 2026, 10:54 UTC View this flight’s market	-53
Sep 14, 2026Arrived	San Francisco	Boston	Sep 15, 2026, 11:45 UTC	-23
Sep 13, 2026Arrived	San Francisco	Boston	Sep 14, 2026, 11:25 UTC	-43
Sep 14, 2026Arrived	Ontario	San Francisco	Sep 14, 2026, 04:04 UTC	14
Sep 12, 2026Arrived	San Francisco	Boston	Sep 13, 2026, 11:26 UTC	-42
Sep 11, 2026Arrived	San Francisco	Boston	Sep 12, 2026, 11:48 UTC	-20
Sep 10, 2026Arrived	San Francisco	Boston	Sep 11, 2026, 11:38 UTC	-30
Sep 9, 2026Arrived	San Francisco	Boston	Sep 10, 2026, 11:22 UTC	-46
Sep 8, 2026Arrived	San Francisco	Boston	Sep 9, 2026, 11:02 UTC	-45
Sep 7, 2026Arrived	San Francisco	Boston	Sep 8, 2026, 11:54 UTC	-14
Sep 8, 2026Arrived	Ontario	San Francisco	Sep 8, 2026, 03:47 UTC	-3
Sep 6, 2026Arrived	San Francisco	Boston	Sep 7, 2026, 11:43 UTC	-25
Sep 5, 2026Arrived	San Francisco	Boston	Sep 6, 2026, 11:30 UTC	-43
Sep 4, 2026Arrived	San Francisco	Boston	Sep 5, 2026, 11:34 UTC	-39
Sep 5, 2026Arrived	Ontario	San Francisco	Sep 5, 2026, 03:31 UTC	-19
Sep 3, 2026Arrived	San Francisco	Boston	Sep 4, 2026, 12:09 UTC	-4
Sep 3, 2026Arrived	Ontario	San Francisco	Sep 4, 2026, 04:27 UTC	31
Sep 2, 2026Arrived	San Francisco	Boston	Sep 3, 2026, 11:10 UTC	-63