UA5581United Airlines · ORD → MKE
live · 6m ago
Route confirmed United Airlines

UA5581 ChicagoORD · 05:59 MilwaukeeMKE · 07:07

UA5581 by United Airlines flies from Chicago (ORD) to Milwaukee (MKE) for the Mon, Aug 17 departure.

Right nowEn route to Milwaukee · off blocks 05:56 · 3 min early
06:36

estimated arrival at MKE · local time

En routeUA5581 · position estimated
ORDChicagoMKEMilwaukee
Estimated from the boardsarr 06:36

Board estimate · gate and arrival times. Off blocks 05:56 · typical taxi-out at ORD ≈ 8.1 min.

⚖ UA5581 typically leaves −4 and lands −21. The air wins minutes back.
Typical gate push−4 minmedian posted departure
Typical arrival−21 minmedian over 14 operations
Wins back in air~17 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 14tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+49+97+146 min
08-17
−3 gate · −31 arrival
08-16
−5 gate · −26 arrival
08-15
−6 gate · −15 arrival
08-14
−7 gate · −21 arrival
08-13
−4 gate · −21 arrival
08-12
−2 gate · −24 arrival
08-10
+146 gate · +134 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 −21 min · 0 cancelled · 14 operations tracked

The route today

live boards
ORDChicagoHigh riskORD 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
0.0%Chance of cancellation
+17 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
UA3655departs 05:59
UA5842departs 08:45
UA5391departs 08:50
UA5234departs 11:41
UA5720departs 11:47
UA5194departs 13:00

If UA5581 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 UA5581 actually runs

Pro Flight Search has tracked every published board update for UA5581 across the ORD and MKE boards: schedule changes, gate pushes and actual clocks. Usually lands ~18 min early. Based on 13 confirmed landings · 10/13 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how UA5581 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
08-17ORD 05:59 05:56 (−3)MKE 07:07 06:36 (−31)
08-16ORD 05:59 05:54 (−5)MKE 07:07 06:41 (−26)
08-15ORD 05:59 05:53 (−6)MKE 07:07 06:52 (−15)
08-14ORD 05:59 05:52 (−7)MKE 07:07 06:46 (−21)
08-13ORD 05:59 05:55 (−4)MKE 07:07 06:46 (−21)
08-12ORD 05:59 05:57 (−2)MKE 07:07 06:43 (−24)
08-10ORD 05:59 08:25 (+146)MKE 07:00 09:14 (+134)
08-09ORD 05:59 06:30 (+31)MKE 07:00 07:20 (+20)
08-08ORD 05:59 05:49 (−10)MKE 07:00 06:31 (−29)
08-07ORD 05:59 05:53 (−6)MKE 07:00 06:53 (−7)
08-06ORD 05:59 05:55 (−4)MKE 07:00 06:35 (−25)
08-05ORD 05:59 05:54 (−5)MKE 07:00 06:29 (−31)
08-04ORD 05:59 06:31 (+32)MKE 07:00 07:51 (+51)
08-03ORD 05:59 06:18 (+19)MKE 07:00 07:02 (+2)

Aircraft

Recent tails: N461SW, N956SW, N939SW, N496CA.

Board clocks recorded as ORD and MKE published them.

Planning around UA5581? 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 — UA5581 Chicago to Milwaukee on-time performance, measured from the ORD and MKE airport boards.

Canonical URL
https://proflightsearch.com/flight/UA5581
How we measure this →