UA 2131 · ATL → IAD

departs 7:35 PM ET · arrives 9:35 PM ET

Forecast issued Mon 3:00 AM ET · 17h before departure

Arrive at IAD more than 15 minutes late?

14% chance · ±0 pts −1 pt · 24h

HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.

How late will it get to IAD?

On time or early
85%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ 7pm departures from ATL are often late

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into IAD at that hour are often late

↓ Mondays in October are usually quieter than average

↓ Mostly benign weather forecast at ATL

Weather at each end

ATL (origin) Gusts17 kt Ceilingnone (clear) Visibility10+ mi Precipnone

IAD (destination) Gusts27 kt Ceiling600 ft Visibility4 mi Precip0.71 in

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

UA 2131 · ATL → IAD

Odds over time

How late will it get to IAD?