UA5821United Airlines · ORD → MKE
live · 15m ago
Route confirmed United Airlines

UA5821 ChicagoORD · 08:57 MilwaukeeMKE · 10:07

UA5821 by United Airlines flies from Chicago (ORD) to Milwaukee (MKE) for the Mon, Oct 19 departure.

Right nowEn route to Milwaukee · off blocks 08:46 · 11 min early
10:01

estimated arrival at MKE · local time · ~30 min from now

En routeUA5821 · position estimated
ORDChicagoMKEMilwaukee
Estimated from the boardsarr 10:01

Board estimate · gate and arrival times. Off blocks 08:46 · typical taxi-out at ORD ≈ 7.6 min.

Typical gate push−4 minmedian posted departure
Typical arrival−8 minmedian over 7 operations
Wins back in air~4 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-19
−11 gate · −6 arrival
10-17
−4 gate · −29 arrival
10-16
−9 gate · −12 arrival
10-15
−10 gate · −25 arrival
10-14
+65 gate · +35 arrival
10-13
+7 gate · −8 arrival
10-12
−4 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −8 min · 0 cancelled · 7 operations tracked

The route today

live boards
ORDChicagoOn-time likelyORD delay board →
MKEMilwaukeeOn-time likelyMKE delay board →
ORD→MKEevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
45%Chance of 15+ min delay
1.4%Chance of cancellation
+12 minAvg hub delay right now

Conditions at ORD and MKE are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Chicago to Milwaukee flights today

same route · United Airlines
UA5838departs 05:59
UA6086departs 06:25
UA5202departs 07:45
UA5391departs 08:50
UA3752departs 09:00
UA5234departs 10:25

If UA5821 is cancelled, these are the other United Airlines nonstop flights from Chicago to Milwaukee on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA5821 actually runs

Pro Flight Search has tracked every published board update for UA5821 across the ORD and MKE boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 6 confirmed landings · 5/6 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA5821 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-19ORD 08:57 08:46 (−11)MKE 10:07 10:01 (−6)
10-17ORD 08:57 08:53 (−4)MKE 10:07 09:38 (−29)
10-16ORD 08:57 08:48 (−9)MKE 10:07 09:55 (−12)
10-15ORD 08:57 08:47 (−10)MKE 10:07 09:42 (−25)
10-14ORD 08:57 10:02 (+65)MKE 10:07 10:42 (+35)
10-13ORD 08:57 09:04 (+7)MKE 10:07 09:59 (−8)
10-12ORD 08:57MKE 10:07 10:03 (−4)

Aircraft

Recent tails: N782SK, N925EV, N962SW, N924SW.

Board clocks recorded as ORD and MKE published them.

Planning around UA5821? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — UA5821 Chicago to Milwaukee on-time performance, measured from the ORD and MKE airport boards.

Canonical URL
https://proflightsearch.com/flight/UA5821
How we measure this →