UA3911United Airlines · IAD → CUN
live · 3m ago
Route confirmed United Airlines

UA3911 WashingtonIAD CancúnCUN

UA3911 by United Airlines flies from Washington (IAD) to Cancún (CUN).

Same number through IAD → IAH → CUN

Right nowNext departure today Operates daily
12:00

scheduled from IAD

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
CUNCancúnOn-time likelyCUN delay board →
IAD→CUNevery 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
2.9%Chance of cancellation
+5 minTypical airport delay in this weather

Conditions at IAD and CUN 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 Washington

Forecast

Thu 12 Nov, local date

High17°Clikely 14°C to 20°C
Low7°Clikely 5°C to 10°C
  • 84% 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.

Tomorrow at Chicago

Forecast

Thu 12 Nov, local date

High9°Clikely 7°C to 10°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.

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 Washington to Cancún flights today

same route · United Airlines
UA8174departs 01:56
UA565departs 06:11
UA1775departs 08:23
UA1252departs 10:15
UA2331departs 13:15
UA1786departs 15:37

If UA3911 is cancelled, these are the other United Airlines nonstop flights from Washington to Cancún on the same day, with scheduled departure times in IAD 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 UA3911 actually runs

Pro Flight Search has tracked every published board update for UA3911 across the IAD and CUN boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at IAD and CUN.

The verdict above is that record speaking, so it reflects how UA3911 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA3911? 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: UA3911 Washington to Cancún on-time performance, measured from the IAD and CUN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3911
How we measure this →