Is UA3551 delayed?

Service date: Sep 15, 2026 · Scheduled departure date (America/Chicago)

Arrived

110 min late

Official source · Updated Sep 16, 2026, 05:38 UTC

Departure

Chicago

ORD

Scheduled

21:53

Sep 15

Arrival

Louisville

SDF

Actual

05:38~~03:48~~

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 16, 2026, 02:53 UTC
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 16, 2026, 03:48 UTC
Estimated: Not available
Actual: Sep 16, 2026, 05:38 UTC

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.

ORDSDF

Recent arrivals

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

Wed, Sep 16, 2026
ORD → SDF
110 min late
Tue, Sep 15, 2026
ORD → SDF
11 min early
Mon, Sep 14, 2026
ORD → SDF
19 min early
Sun, Sep 13, 2026
ORD → SDF
3 min early
Sat, Sep 12, 2026
ORD → SDF
3 min early

Flight history and details

Aug 17, 2026 — Sep 16, 2026

Observed arrivals: 14
Arrivals over 15 minutes late: 2
Observed cancellations: 1
Observed occurrences: 21

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

UA3551 Recent arrival history
Service date	Departure	Arrival	Actual	Arrival delay (minutes)
Sep 15, 2026Arrived	Chicago	Louisville	Sep 16, 2026, 05:38 UTC View this flight’s market	110
Sep 14, 2026Arrived	Chicago	Louisville	Sep 15, 2026, 03:21 UTC	-11
Sep 13, 2026Arrived	Chicago	Louisville	Sep 14, 2026, 03:28 UTC	-19
Sep 12, 2026Arrived	Chicago	Louisville	Sep 13, 2026, 03:44 UTC	-3
Sep 11, 2026Arrived	Chicago	Louisville	Sep 12, 2026, 00:27 UTC	-3
Sep 9, 2026Arrived	Chicago	Louisville	Sep 10, 2026, 03:44 UTC	-3
Sep 8, 2026Arrived	Chicago	Louisville	Sep 9, 2026, 03:29 UTC	-18
Sep 7, 2026Arrived	Chicago	Louisville	Sep 8, 2026, 03:29 UTC	-21
Sep 6, 2026Arrived	Chicago	Louisville	Sep 7, 2026, 04:22 UTC	31
Sep 5, 2026Arrived	Chicago	Louisville	Sep 6, 2026, 03:24 UTC	-26
Sep 2, 2026Arrived	Chicago	Louisville	Sep 3, 2026, 03:33 UTC	-25
Aug 31, 2026Cancelled	Chicago	Louisville	Not available	Not available
Aug 29, 2026Arrived	Chicago	Louisville	Aug 30, 2026, 03:22 UTC	-36
Aug 24, 2026Arrived	Chicago	Louisville	Aug 25, 2026, 03:28 UTC	-30
Aug 23, 2026Arrived	Chicago	Louisville	Aug 24, 2026, 03:42 UTC	-16