UA5275United Airlines · ORD → BUF
live · 29m ago
Route confirmed United Airlines

UA5275 ChicagoORD BuffaloBUF

UA5275 by United Airlines flies from Chicago (ORD) to Buffalo (BUF).

Right nowNext departure today Operates daily
21:30

scheduled from ORD

The route today

live boards
ORDChicagoOn-time likelyORD delay board →
BUFBuffaloOn-time likelyBUF delay board →
ORD→BUFevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
37%Chance of 15+ min delay
1.5%Chance of cancellation
+7 minTypical airport delay in this weather

Conditions at ORD and BUF are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 Chicago

Forecast

Thu 12 Nov, local date

High9°Clikely 7°C to 11°C
Low4°Clikely 2°C to 6°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 BUF

Forecast

Thu 12 Nov, local date

High8°Clikely 5°C to 12°C
Low3°Clikely 0°C to 6°C
  • 21% chance of snow
  • 93% chance of rain

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 Chicago to Buffalo flights today

same route · United Airlines
UA4177departs 06:29
UA4382departs 10:30
UA3683departs 14:17
UA2226departs 14:18
UA1335departs 17:51

If UA5275 is cancelled, these are the other United Airlines nonstop flights from Chicago to Buffalo on the same day, with scheduled departure times in ORD 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 UA5275 actually runs

Pro Flight Search has tracked every published board update for UA5275 across the ORD and BUF boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at ORD and BUF.

The verdict above is that record speaking, so it reflects how UA5275 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA5275? 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: UA5275 Chicago to Buffalo on-time performance, measured from the ORD and BUF airport boards.

Canonical URL
https://proflightsearch.com/flight/UA5275
How we measure this →