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United Airlines

Is UA2356 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

Service date: · Scheduled departure date (America/Los_Angeles)

Arrived

44 min late

Official source · Updated

Departure

San Francisco

SFO

Actual

Scheduled 11:01

Sep 7

Arrival

Boston

BOS

Actual

Scheduled 19:24

Sep 7

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Service date: · Scheduled departure date (America/Los_Angeles)

Arrived

14 min early

Official source · Updated

Departure

Las Vegas

LAS

Actual

Scheduled 07:25

Sep 7

Arrival

San Francisco

SFO

Actual

Scheduled 08:37

Sep 7

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: San Francisco → BostonSFOBOS
Route overview
Route overview: Las Vegas → San FranciscoLASSFO
Route overview

Recent arrivals

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

  • SFO → BOS

    90 min late

  • LAS → SFO

    3 min late

  • SFO → BOS

    20 min early

  • LAS → SFO

    49 min late

  • SFO → BOS

    58 min late
Flight history and details

Aug 22, 2026 — Sep 21, 2026

Observed arrivals
39
Arrivals over 15 minutes late
20
Observed cancellations
0
Observed occurrences
54

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

UA2356 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 20, 2026ArrivedSan FranciscoBoston
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90
Sep 20, 2026ArrivedLas VegasSan Francisco
3
Sep 19, 2026ArrivedSan FranciscoBoston
-20
Sep 19, 2026ArrivedLas VegasSan Francisco
49
Sep 18, 2026ArrivedSan FranciscoBoston
58
Sep 18, 2026ArrivedLas VegasSan Francisco
32
Sep 17, 2026ArrivedSan FranciscoBoston
165
Sep 17, 2026ArrivedLas VegasSan Francisco
36
Sep 16, 2026ArrivedSan FranciscoBoston
34
Sep 16, 2026ArrivedLas VegasSan Francisco
-6
Sep 15, 2026ArrivedSan FranciscoBoston
-9
Sep 14, 2026ArrivedSan FranciscoBoston
30
Sep 14, 2026ArrivedLas VegasSan Francisco
-29
Sep 13, 2026ArrivedSan FranciscoBoston
25
Sep 13, 2026ArrivedLas VegasSan Francisco
-19
Sep 12, 2026ArrivedSan FranciscoBoston
40
Sep 12, 2026ArrivedLas VegasSan Francisco
-15
Sep 11, 2026ArrivedSan FranciscoBoston
-3
Sep 10, 2026ArrivedSan FranciscoBoston
98
Sep 9, 2026ArrivedSan FranciscoBoston
42
Sep 9, 2026ArrivedLas VegasSan Francisco
-23
Sep 8, 2026ArrivedSan FranciscoBoston
33
Sep 7, 2026ArrivedSan FranciscoBoston
44
Sep 7, 2026ArrivedLas VegasSan Francisco
-14
Sep 6, 2026ArrivedSan FranciscoBoston
258
Sep 6, 2026ArrivedLas VegasSan Francisco
-20
Sep 5, 2026ArrivedLas VegasSan Francisco
66
Sep 4, 2026ArrivedSan FranciscoBoston
38
Sep 4, 2026ArrivedLas VegasSan Francisco
-22
Sep 3, 2026ArrivedLas VegasSan Francisco
-17
Sep 2, 2026ArrivedSan FranciscoBoston
-2
Sep 2, 2026ArrivedLas VegasSan Francisco
30
Aug 31, 2026ArrivedLas VegasSan Francisco
56
Aug 30, 2026ArrivedLas VegasSan Francisco
-23
Aug 29, 2026ArrivedLas VegasSan Francisco
-21
Aug 28, 2026ArrivedLas VegasSan Francisco
54
Aug 27, 2026ArrivedLas VegasSan Francisco
-14
Aug 26, 2026ArrivedLas VegasSan Francisco
-16
Aug 24, 2026ArrivedLas VegasSan Francisco
-28

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