Is UA4404 delayed?

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

Service date: Sep 17, 2026 · Scheduled departure date (America/Chicago)

Arrived

125 min late

Official source · Updated Sep 18, 2026, 01:05 UTC

Departure

Chicago

ORD

Scheduled

16:43

Sep 17

Arrival

Sioux Falls

FSD

Actual

01:05~~23:00~~

Sep 18

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 17, 2026, 21:43 UTC
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 17, 2026, 23:00 UTC
Estimated: Not available
Actual: Sep 18, 2026, 01:05 UTC

Service date: Sep 17, 2026 · Scheduled departure date (UTC)

DepartedLast reported

35 min early

This update may be out of date.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

Update time unavailable

Departure

Knoxville

TYS

Actual

20:52~~21:27~~

Sep 17

Arrival

Chicago

ORD

Scheduled

17:46

Sep 17

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 17, 2026, 21:27 UTC
Estimated: Not available
Actual: Sep 17, 2026, 20:52 UTC

Arrival · UTC

Scheduled: Sep 17, 2026, 22:46 UTC
Estimated: Not available
Actual: Not available

Service date: Sep 17, 2026 · Scheduled departure date (UTC)

Arrived

162 min late

Official source · Updated Sep 17, 2026, 22:18 UTC

Departure

Knoxville

TYS

Scheduled

18:11

Sep 17

Arrival

Chicago

ORD

Actual

17:12~~14:30~~

Sep 17

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 17, 2026, 18:11 UTC
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 17, 2026, 19:30 UTC
Estimated: Not available
Actual: Sep 17, 2026, 22:12 UTC

ORDFSD

TYSORD

Recent arrivals

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

Mon, Sep 21, 2026
ORD → FSD
104 min late
Sun, Sep 20, 2026
TYS → ORD
3 min late
Fri, Sep 18, 2026
ORD → FSD
3 min late
Fri, Sep 18, 2026
ORD → FSD
125 min late
Thu, Sep 17, 2026
TYS → ORD
162 min late

Flight history and details

Aug 22, 2026 — Sep 21, 2026

Observed arrivals: 22
Arrivals over 15 minutes late: 10
Observed cancellations: 2
Observed occurrences: 25

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

UA4404 Recent arrival history
Service date	Departure	Arrival	Actual	Arrival delay (minutes)
Sep 20, 2026Arrived	Chicago	Sioux Falls	Sep 21, 2026, 00:44 UTC View this flight’s market	104
Sep 20, 2026Arrived	Knoxville	Chicago	Sep 20, 2026, 19:33 UTC View this flight’s market	3
Sep 19, 2026Cancelled	Knoxville	Chicago	Not available	Not available
Sep 18, 2026Arrived	Chicago	Sioux Falls	Sep 18, 2026, 23:03 UTC	3
Sep 17, 2026Arrived	Chicago	Sioux Falls	Sep 18, 2026, 01:05 UTC	125
Sep 17, 2026Arrived	Knoxville	Chicago	Sep 17, 2026, 22:12 UTC	162
Sep 16, 2026Arrived	Chicago	Sioux Falls	Sep 16, 2026, 22:53 UTC	-7
Sep 16, 2026Cancelled	Knoxville	Chicago	Not available	Not available
Sep 15, 2026Arrived	Chicago	Sioux Falls	Sep 16, 2026, 01:42 UTC	162
Sep 15, 2026Arrived	Knoxville	Chicago	Sep 15, 2026, 21:13 UTC	93
Sep 14, 2026Arrived	Chicago	Sioux Falls	Sep 15, 2026, 00:24 UTC	84
Sep 14, 2026Arrived	Knoxville	Chicago	Sep 14, 2026, 19:45 UTC	15
Sep 13, 2026Arrived	Chicago	Sioux Falls	Sep 13, 2026, 22:48 UTC	-12
Sep 13, 2026Arrived	Knoxville	Chicago	Sep 13, 2026, 19:36 UTC	-18
Sep 12, 2026Arrived	Chicago	Sioux Falls	Sep 12, 2026, 23:19 UTC	19
Sep 12, 2026Arrived	Knoxville	Chicago	Sep 12, 2026, 19:38 UTC	-16
Sep 11, 2026Arrived	Knoxville	Chicago	Sep 11, 2026, 19:20 UTC	-10
Sep 10, 2026Arrived	Knoxville	Chicago	Sep 10, 2026, 19:22 UTC	-8
Sep 9, 2026Arrived	Knoxville	Chicago	Sep 9, 2026, 19:21 UTC	-33
Sep 8, 2026Arrived	Knoxville	Chicago	Sep 8, 2026, 19:19 UTC	-21
Sep 7, 2026Arrived	Knoxville	Chicago	Sep 7, 2026, 19:55 UTC	25
Sep 6, 2026Arrived	Knoxville	Chicago	Sep 6, 2026, 19:44 UTC	14
Sep 5, 2026Arrived	Knoxville	Chicago	Sep 5, 2026, 20:04 UTC	24
Sep 4, 2026Arrived	Knoxville	Chicago	Sep 4, 2026, 22:17 UTC	143