Odds over time
Arrive at IAD more than 15 minutes late?
28%
chance · ±2 pts
−4 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
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How late will it get to IAD?
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On time or early
70%
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15–30 min late
10%
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30 min–1 hour late
12%
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1–2 hours late
0%
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Over 2 hours late
5%
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Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.