UA1159United Airlines · ATL → IAD
live · 47m ago
Route confirmed United Airlines

UA1159 AtlantaATL WashingtonIAD

UA1159 by United Airlines flies from Atlanta (ATL) to Washington (IAD).

Right nowNext departure today Operates daily
16:10

scheduled from ATL

The route today

live boards
ATLAtlantaOn-time likelyATL delay board →
IADWashingtonOn-time likelyIAD delay board →
ATL→IADevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
29%Chance of 15+ min delay
2.3%Chance of cancellation
+3 minTypical airport delay in this weather

Conditions at ATL 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 ATL

Forecast

Wed 11 Nov, local date

High21°Clikely 19°C to 22°C
Low10°Clikely 8°C to 11°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 17°C to 22°C
Low5°Clikely 3°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 Atlanta to Washington flights today

same route · United Airlines
UA641departs 05:30
UA632departs 09:30
UA1831departs 14:31
UA2131departs 19:34

If UA1159 is cancelled, these are the other United Airlines nonstop flights from Atlanta to Washington on the same day, with scheduled departure times in ATL 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 UA1159 actually runs

Pro Flight Search has tracked every published board update for UA1159 across the ATL and IAD boards: schedule changes, gate pushes and actual clocks. Combined risk score: 2.0/100. Based on airport operations, weather, and cached board history at ATL and IAD.

The verdict above is that record speaking, so it reflects how UA1159 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA1159? 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: UA1159 Atlanta to Washington on-time performance, measured from the ATL and IAD airport boards.

Canonical URL
https://proflightsearch.com/flight/UA1159
How we measure this →