UA4594United Airlines · ORD → DAY
live · 3m ago
Route confirmed United Airlines

UA4594 ChicagoORD · 11:20 DaytonDAY

UA4594 by United Airlines flies from Chicago (ORD) to Dayton (DAY) for the Wed, Oct 21 departure.

Right nowEn route to Dayton · off blocks 11:11 · 9 min early
En route

en route from ORD to DAY

En routeUA4594 · position estimated
ORDChicagoDAYDayton
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 11:11 · typical taxi-out at ORD ≈ 7.6 min.

Typical gate push−3 minmedian posted departure

Where the minutes go

last 6 operations · gate push → arrival
0+30+60+90 min
10-21
−9 gate
10-20
−6 gate
10-19
−2 gate
10-18
−3 gate
10-17
−4 gate
10-15
−3 gate

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

0 cancelled · 6 operations tracked

The route today

live boards
ORDChicagoOn-time likelyORD delay board →
DAYDaytonOn-time likelyDAY delay board →
ORD→DAYevery carrier, schedules and on-time historyRoute intelligence →

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 Dayton flights today

same route · United Airlines
UA5626departs 08:40
UA5759departs 11:20
UA4487departs 14:38
UA5465departs 14:38
UA6088departs 15:00
UA4484departs 17:50

If UA4594 is cancelled, these are the other United Airlines nonstop flights from Chicago to Dayton 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 UA4594 actually runs

Pro Flight Search has tracked every published board update for UA4594 across the ORD and DAY boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 6 confirmed departures · 6/6 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA4594 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-21ORD 11:20 11:11 (−9)DAY
10-20ORD 11:20 11:14 (−6)DAY
10-19ORD 11:20 11:18 (−2)DAY
10-18ORD 11:20 11:17 (−3)DAY
10-17ORD 11:20 11:16 (−4)DAY
10-15ORD 11:20 11:17 (−3)DAY

Board clocks recorded as ORD and DAY published them.

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 — UA4594 Chicago to Dayton on-time performance, measured from the ORD and DAY airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4594
How we measure this →