Is UA4543 delayed?

Service date: Sep 18, 2026 · Scheduled departure date (UTC)

Arrived

21 min early

Official source · Updated Sep 18, 2026, 16:11 UTC

Departure

Knoxville

TYS

Actual

14:49~~15:00~~

Sep 18

Arrival

Chicago

ORD

Actual

11:05~~11:26~~

Sep 18

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 18, 2026, 15:00 UTC
Estimated: Not available
Actual: Sep 18, 2026, 14:49 UTC

Arrival · UTC

Scheduled: Sep 18, 2026, 16:26 UTC
Estimated: Sep 18, 2026, 16:04 UTC
Actual: Sep 18, 2026, 16:05 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.

TYSORD

Recent arrivals

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

Fri, Sep 18, 2026
TYS → ORD
21 min early
Thu, Sep 17, 2026
TYS → ORD
188 min late
Wed, Sep 16, 2026
TYS → ORD
69 min late
Tue, Sep 15, 2026
TYS → ORD
39 min late
Mon, Sep 14, 2026
TYS → ORD
7 min early

Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals: 17
Arrivals over 15 minutes late: 4
Observed cancellations: 5
Observed occurrences: 30

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

UA4543 Recent arrival history
Service date	Departure	Arrival	Actual	Arrival delay (minutes)
Sep 18, 2026Arrived	Knoxville	Chicago	Sep 18, 2026, 16:05 UTC View this flight’s market	-21
Sep 17, 2026Arrived	Knoxville	Chicago	Sep 17, 2026, 19:57 UTC	188
Sep 16, 2026Arrived	Knoxville	Chicago	Sep 16, 2026, 17:35 UTC	69
Sep 15, 2026Arrived	Knoxville	Chicago	Sep 15, 2026, 17:28 UTC	39
Sep 14, 2026Arrived	Knoxville	Chicago	Sep 14, 2026, 16:19 UTC	-7
Sep 13, 2026Arrived	Knoxville	Chicago	Sep 13, 2026, 16:06 UTC	-43
Sep 12, 2026Arrived	Chicago	Grand Rapids	Sep 12, 2026, 20:33 UTC	-22
Sep 12, 2026Arrived	Knoxville	Chicago	Sep 12, 2026, 16:01 UTC	-48
Sep 11, 2026Arrived	Knoxville	Chicago	Sep 11, 2026, 17:23 UTC	34
Sep 10, 2026Arrived	Knoxville	Chicago	Sep 10, 2026, 16:08 UTC	-18
Sep 9, 2026Arrived	Knoxville	Chicago	Sep 9, 2026, 16:31 UTC	5
Sep 8, 2026Cancelled	Chicago	Grand Rapids	Not available	Not available
Sep 8, 2026Arrived	Knoxville	Chicago	Sep 8, 2026, 16:09 UTC	-17
Sep 7, 2026Arrived	Newark	Greensboro	Sep 8, 2026, 03:34 UTC	-20
Sep 6, 2026Arrived	Newark	Greensboro	Sep 7, 2026, 03:28 UTC	-26
Sep 5, 2026Arrived	Norfolk	Newark	Sep 5, 2026, 16:10 UTC	-7
Sep 4, 2026Arrived	Newark	Greensboro	Sep 5, 2026, 03:32 UTC	-22
Sep 2, 2026Cancelled	Newark	Greensboro	Not available	Not available
Sep 1, 2026Cancelled	Newark	Greensboro	Not available	Not available
Aug 28, 2026Arrived	Newark	Greensboro	Aug 29, 2026, 03:24 UTC	-34
Aug 27, 2026Cancelled	Newark	Greensboro	Not available	Not available
Aug 20, 2026Cancelled	Newark	Greensboro	Not available	Not available