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United Airlines

Is UA2356 delayed?

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

Arrived

33 min late

Official source · Updated

Departure

San Francisco

SFO

Actual

Scheduled 10:42

Sep 8

Arrival

Boston

BOS

Actual

Scheduled 19:05

Sep 8

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Route overview: San Francisco → BostonSFOBOS
Route overview

Recent arrivals

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

  • SFO → BOS

    71 min late

  • LAS → SFO

    12 min early

  • SFO → BOS

    90 min late

  • LAS → SFO

    3 min late

  • SFO → BOS

    20 min early
Flight history and details

Aug 23, 2026 — Sep 22, 2026

Observed arrivals
41
Arrivals over 15 minutes late
21
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 21, 2026ArrivedSan FranciscoBoston
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71
Sep 21, 2026ArrivedLas VegasSan Francisco
View this flight’s market
-12
Sep 20, 2026ArrivedSan FranciscoBoston
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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