UA5548United Airlines · STL → DEN
updated 1h ago
Route confirmed United Airlines

UA5548 St LouisSTL · 05:10 DenverDEN · 06:43

UA5548 by United Airlines flies from St Louis (STL) to Denver (DEN).

Right nowNext departure today Operates daily
15:49

scheduled from STL

Typical gate push+7 minmedian posted departure
Typical arrival−25 minmedian over 5 operations
Wins back in air~32 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 5 operations · gate push → arrival
0+30+60+90 min
11-04
+7 gate · −26 arrival
10-24
+3 gate · −25 arrival
10-23
+9 gate · −24 arrival
10-22
+10 gate · −18 arrival
10-21
+7 gate · −26 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 −25 min · 0 cancelled · 5 operations tracked

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
DENDenverOn-time likelyDEN delay board →
STL→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
43%Chance of 15+ min delay
1.2%Chance of cancellation
+11 minTypical airport delay in this weather

Driven mainly by STL (St Louis), currently flying MVFR (marginal visual). These figures come from both airports' records 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 →

Tomorrow at STL

Forecast

Thu 5 Nov, local date

High16°Clikely 14°C to 18°C
Low9°Clikely 7°C to 10°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at DEN

Forecast

Thu 5 Nov, local date

High15°Clikely 12°C to 18°C
Low1°Clikely −1°C to 3°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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 Denver flights today

same route · United Airlines
UA1352departs 08:50
UA1380departs 13:40
UA663departs 16:39

If UA5548 is cancelled, these are the other United Airlines nonstop flights from St Louis to Denver on the same day, with scheduled departure times in STL local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA5548 actually runs

Pro Flight Search has tracked every published board update for UA5548 across the STL and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~25 min early. Based on 5 confirmed landings · 5/5 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 UA5548 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
11-04STL 05:10 05:17 (+7)DEN 06:43 06:17 (−26)
10-24STL 05:10 05:13 (+3)DEN 06:43 06:18 (−25)
10-23STL 05:10 05:19 (+9)DEN 06:43 06:19 (−24)
10-22STL 05:10 05:20 (+10)DEN 06:43 06:25 (−18)
10-21STL 05:10 05:17 (+7)DEN 06:43 06:17 (−26)

Aircraft

Recent tails: N108SY, N628SY.

Board clocks recorded as STL and DEN published them.

Planning around UA5548? 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: UA5548 St Louis to Denver on-time performance, measured from the STL and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA5548
How we measure this →