Is UA2356 delayed?

No delay reported yet — UA2356 is scheduled to leave San Francisco at 11:16 on Sep 28 and reach Boston at 19:39 (as of Sep 28, 07:33 UTC). Over its last 48 recorded arrivals, 27 landed more than 15 min late.

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No live update yet

Showing the published schedule until live times are reported.

Update time unavailable

Departure

San Francisco

SFO

Scheduled

11:16

Sep 28

Arrival

Boston

BOS

Scheduled

19:39

Sep 28

Times shown in airport local time

Service date: Sep 28, 2026 · Scheduled departure date (America/Los_Angeles)

Think UA2356 runs late today? Delayed is trading at 52¢ — pays out x1.92.

Will United Airlines UAL 2356 from San Francisco to Boston arrive on time, be delayed, or be cancelled on Sep 28?

On timePays out x2.1646%DelayedPays out x1.9252%CancelledPays out x50.962%

$39 tradedDeparts Mon, Sep 28, 11:16 AM PDT

Flight details

Departure · UTC

Scheduled: Sep 28, 2026, 18:16 UTC
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 28, 2026, 23:39 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.

Estimated arrivalLast reported

255 min late

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Las Vegas

LAS

Scheduled

—

Not available

Arrival

San Francisco

SFO

Estimated

Scheduled 08:56

13:11

Sep 28

Times shown in airport local time

Service date: Sep 28, 2026 · Scheduled arrival date; departure time unavailable (America/Los_Angeles)

Flight details

Departure · UTC

Scheduled: Not available
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 28, 2026, 15:56 UTC
Estimated: Sep 28, 2026, 20:11 UTC
Actual: Not available

San Francisco → Boston

Las Vegas → San Francisco

Recent arrivals

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

Sun, Sep 27, 2026
San Francisco → Boston
58 min late
Sun, Sep 27, 2026
Las Vegas → San Francisco
67 min late
Sat, Sep 26, 2026
San Francisco → Boston
36 min late
Sat, Sep 26, 2026
Las Vegas → San Francisco
27 min early
Fri, Sep 25, 2026
San Francisco → Boston
On schedule (1 min behind)

Flight history and details

Aug 29, 2026 — Sep 28, 2026

Observed arrivals: 48
Arrivals over 15 minutes late: 27
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 date	Departure	Arrival	Actual	Arrival delay (minutes)
Sep 27, 2026Arrived	San Francisco	Boston	Sep 28, 2026, 00:37 UTC View this flight’s market	58
Sep 27, 2026Arrived	Las Vegas	San Francisco	Sep 27, 2026, 17:03 UTC	67
Sep 26, 2026Arrived	San Francisco	Boston	Sep 27, 2026, 00:17 UTC	36
Sep 26, 2026Arrived	Las Vegas	San Francisco	Sep 26, 2026, 15:29 UTC	-27
Sep 25, 2026Arrived	San Francisco	Boston	Sep 25, 2026, 23:40 UTC	1
Sep 25, 2026Arrived	Las Vegas	San Francisco	Sep 25, 2026, 16:32 UTC	36
Sep 24, 2026Arrived	San Francisco	Boston	Sep 25, 2026, 02:38 UTC	179
Sep 24, 2026Arrived	Las Vegas	San Francisco	Sep 24, 2026, 15:32 UTC	-24
Sep 23, 2026Arrived	San Francisco	Boston	Sep 23, 2026, 23:58 UTC	53
Sep 23, 2026Arrived	Las Vegas	San Francisco	Sep 23, 2026, 16:28 UTC	43
Sep 22, 2026Arrived	San Francisco	Boston	Sep 22, 2026, 22:45 UTC	-20
Sep 21, 2026Arrived	San Francisco	Boston	Sep 22, 2026, 00:16 UTC	71
Sep 21, 2026Arrived	Las Vegas	San Francisco	Sep 21, 2026, 15:25 UTC	-12
Sep 20, 2026Arrived	San Francisco	Boston	Sep 21, 2026, 00:35 UTC	90
Sep 20, 2026Arrived	Las Vegas	San Francisco	Sep 20, 2026, 15:40 UTC	3
Sep 19, 2026Arrived	San Francisco	Boston	Sep 19, 2026, 22:44 UTC	-20
Sep 19, 2026Arrived	Las Vegas	San Francisco	Sep 19, 2026, 16:26 UTC	49
Sep 18, 2026Arrived	San Francisco	Boston	Sep 19, 2026, 00:03 UTC	58
Sep 18, 2026Arrived	Las Vegas	San Francisco	Sep 18, 2026, 16:09 UTC	32
Sep 17, 2026Arrived	San Francisco	Boston	Sep 18, 2026, 01:50 UTC	165
Sep 17, 2026Arrived	Las Vegas	San Francisco	Sep 17, 2026, 16:13 UTC	36
Sep 16, 2026Arrived	San Francisco	Boston	Sep 16, 2026, 23:39 UTC	34
Sep 16, 2026Arrived	Las Vegas	San Francisco	Sep 16, 2026, 15:31 UTC	-6
Sep 15, 2026Arrived	San Francisco	Boston	Sep 15, 2026, 22:56 UTC	-9
Sep 14, 2026Arrived	San Francisco	Boston	Sep 14, 2026, 23:35 UTC	30
Sep 14, 2026Arrived	Las Vegas	San Francisco	Sep 14, 2026, 15:16 UTC	-29
Sep 13, 2026Arrived	San Francisco	Boston	Sep 14, 2026, 01:31 UTC	25
Sep 13, 2026Arrived	Las Vegas	San Francisco	Sep 13, 2026, 15:26 UTC	-19
Sep 12, 2026Arrived	San Francisco	Boston	Sep 12, 2026, 23:45 UTC	40
Sep 12, 2026Arrived	Las Vegas	San Francisco	Sep 12, 2026, 15:22 UTC	-15
Sep 11, 2026Arrived	San Francisco	Boston	Sep 11, 2026, 23:01 UTC	-3
Sep 10, 2026Arrived	San Francisco	Boston	Sep 11, 2026, 00:43 UTC	98
Sep 9, 2026Arrived	San Francisco	Boston	Sep 9, 2026, 23:47 UTC	42
Sep 9, 2026Arrived	Las Vegas	San Francisco	Sep 9, 2026, 15:14 UTC	-23
Sep 8, 2026Arrived	San Francisco	Boston	Sep 8, 2026, 23:38 UTC	33
Sep 7, 2026Arrived	San Francisco	Boston	Sep 8, 2026, 00:08 UTC	44
Sep 7, 2026Arrived	Las Vegas	San Francisco	Sep 7, 2026, 15:23 UTC	-14
Sep 6, 2026Arrived	San Francisco	Boston	Sep 7, 2026, 03:23 UTC	258
Sep 6, 2026Arrived	Las Vegas	San Francisco	Sep 6, 2026, 15:25 UTC	-20
Sep 5, 2026Arrived	Las Vegas	San Francisco	Sep 5, 2026, 16:51 UTC	66
Sep 4, 2026Arrived	San Francisco	Boston	Sep 4, 2026, 23:48 UTC	38
Sep 4, 2026Arrived	Las Vegas	San Francisco	Sep 4, 2026, 15:23 UTC	-22
Sep 3, 2026Arrived	Las Vegas	San Francisco	Sep 3, 2026, 15:28 UTC	-17
Sep 2, 2026Arrived	San Francisco	Boston	Sep 2, 2026, 23:07 UTC	-2
Sep 2, 2026Arrived	Las Vegas	San Francisco	Sep 2, 2026, 16:15 UTC	30
Aug 31, 2026Arrived	Las Vegas	San Francisco	Aug 31, 2026, 16:41 UTC	56
Aug 30, 2026Arrived	Las Vegas	San Francisco	Aug 30, 2026, 15:21 UTC	-23
Aug 29, 2026Arrived	Las Vegas	San Francisco	Aug 29, 2026, 15:24 UTC	-21