Schedule: the flights that flew on Monday, Nov 2, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 1523 SCHEDULED · TYPICAL SCHEDULE

Monday, November 9 Today

DL 1523 · DCA → BOS

departs 11:52 AM ET · arrives 1:26 PM ET

Forecast issued Mon 4:00 AM ET · 8h before departure

Arrive at BOS more than 15 minutes late?

24% chance · ±0 pts +9 pts · 24h

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

How late will it get to BOS?

On time or early
76%
15–30 min late
15%
30 min–1 hour late
4%
1–2 hours late
2%
Over 2 hours late
3%
Cancelled
<1%

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

What’s moving the odds

↑ 11am departures from DCA are often late

↑ This flight has been late 20% of the time recently

↑ DL's recent on-time record

↓ Mondays in November are usually quieter than average

↓ Gusts to 25 kt forecast at DCA that day

Weather at each end

DCA (origin) Gusts25 kt Ceilingnone (clear) Visibility10+ mi Precipnone

BOS (destination) Gusts17 kt Ceiling4,500 ft 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.

DL 1523 · DCA → BOS

Odds over time

How late will it get to BOS?