Tracked live by the FAA. The scheduled times shown are from a typical Monday because the FAA's flight plan was first seen after takeoff.
REPUBLIC · FLIGHT YX 4779
SCHEDULED
Tomorrow
YX 4779 · BOS → DCA
departs 8:32 AM ET · arrives 10:28 AM ET
Forecast issued Sun 7:00 AM ET · 26h before departure
Odds over time
Arrive at DCA more than 15 minutes late?
23%
chance · ±2 pts
−7 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
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How late will it get to DCA?
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On time or early
75%
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15–30 min late
9%
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30 min–1 hour late
8%
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1–2 hours late
3%
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Over 2 hours late
3%
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Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.