WN 485 · STL → BOS

departs 10:21 AM CT · arrives 2:20 PM ET

Forecast issued Thu 7:00 AM ET · 4h before departure

Arrive at BOS more than 15 minutes late?

39% chance · ±0 pts +26 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

How late will it get to BOS?

On time or early
61%
15–30 min late
23%
30 min–1 hour late
0%
1–2 hours late
14%
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

↑ Cloud base down to 500 ft, visibility down to 2.66667 mi, 0.6 in of rain forecast at STL that day

↑ This flight has been late 32% of the time recently

↑ Arrivals into BOS at that hour are often late

↓ STL usually runs smoothly

↓ 10am departures from STL are usually not late

Weather at each end

STL (origin) Gusts19 kt Ceiling567 ft Visibility3.33333 mi Precip0.56 in

BOS (destination) Gusts17 kt Ceilingnone (clear) Visibility10+ mi Precipnone

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.

WN 485 · STL → BOS

Odds over time

How late will it get to BOS?