UA4531United Airlines · MHT → IAD
updated 4h ago
Route confirmed United Airlines

UA4531 ManchesterMHT WashingtonIAD

UA4531 by United Airlines flies from Manchester (MHT) to Washington (IAD).

Right nowNext departure tomorrow Operates daily
12:29

scheduled from MHT

The route today

live boards
MHTManchesterOn-time likelyMHT delay board →
IADWashingtonOn-time likelyIAD delay board →
MHT→IADevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
35%Chance of 15+ min delay
2.3%Chance of cancellation
+5 minTypical airport delay in this weather

Conditions at MHT and IAD 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 MHT

Forecast

Wed 11 Nov, local date

High13°Clikely 11°C to 15°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 IAD

Forecast

Wed 11 Nov, local date

High20°Clikely 18°C to 21°C
Low5°Clikely 4°C to 8°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 Manchester to Washington flights today

same route · United Airlines
UA4514departs 09:25
UA4523departs 09:25
UA4857departs 09:25
UA4925departs 14:38
UA4520departs 19:41
UA4829departs 19:41

If UA4531 is cancelled, these are the other United Airlines nonstop flights from Manchester to Washington on the same day, with scheduled departure times in MHT 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 UA4531 actually runs

Pro Flight Search has tracked every published board update for UA4531 across the MHT and IAD boards: schedule changes, gate pushes and actual clocks. Combined risk score: 9.1/100. Based on airport operations, weather, and cached board history at MHT and IAD.

The verdict above is that record speaking, so it reflects how UA4531 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA4531? 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: UA4531 Manchester to Washington on-time performance, measured from the MHT and IAD airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4531
How we measure this →