UA4395United Airlines · STL → ORD
live · 11m ago
Route confirmed United Airlines

UA4395 St LouisSTL · 11:35 ChicagoORD · 13:11

UA4395 by United Airlines flies from St Louis (STL) to Chicago (ORD).

Right nowNext departure today Operates daily
11:35

scheduled from STL

Typical gate push+10 minmedian posted departure
Typical arrival−16 minmedian over 7 operations
Wins back in air~26 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
10-20
+10 gate · −16 arrival
10-19
+10 gate · −16 arrival
10-18
+5 gate · −7 arrival
10-17
+13 gate · −23 arrival
10-16
+9 gate · +26 arrival
10-15
+37 gate · −6 arrival
10-14
+13 gate · −16 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 −16 min · 0 cancelled · 7 operations tracked

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
ORDChicagoOn-time likelyORD delay board →
STL→ORDevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
44%Chance of 15+ min delay
1.4%Chance of cancellation
+12 minAvg hub delay right now

Conditions at STL and ORD 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 St Louis to Chicago flights today

same route · United Airlines
UA4423departs 06:00
UA2792departs 08:00
UA4601departs 09:04
UA5572departs 09:20
UA4808departs 09:30
UA4517departs 10:27

If UA4395 is cancelled, these are the other United Airlines nonstop flights from St Louis to Chicago on the same day, with scheduled departure times in STL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA4395 actually runs

Pro Flight Search has tracked every published board update for UA4395 across the STL and ORD boards: schedule changes, gate pushes and actual clocks. Usually lands ~16 min early. Based on 7 confirmed landings · 6/7 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 UA4395 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
10-20STL 11:35 11:45 (+10)ORD 13:11 12:55 (−16)
10-19STL 11:35 11:45 (+10)ORD 13:11 12:55 (−16)
10-18STL 11:35 11:40 (+5)ORD 13:11 13:04 (−7)
10-17STL 11:35 11:48 (+13)ORD 13:11 12:48 (−23)
10-16STL 11:35 11:44 (+9)ORD 13:11 13:37 (+26)
10-15STL 11:35 12:12 (+37)ORD 13:11 13:05 (−6)
10-14STL 11:35 11:48 (+13)ORD 13:11 12:55 (−16)

Aircraft

Recent tails: N568GJ, N521GJ, N537GJ, N549GJ.

Board clocks recorded as STL and ORD 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 — UA4395 St Louis to Chicago on-time performance, measured from the STL and ORD airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4395
How we measure this →