Schedule: the flights that flew on Monday, Oct 5, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1553
SCHEDULED · TYPICAL SCHEDULE
Monday, October 12 Tomorrow
WN 1553 · DEN → BOS
departs 11:00 AM MT · arrives 4:53 PM ET
Forecast issued Sun 10:00 AM ET · 27h before departure
Watch this flight
Other days
Mon 10/12
Thu 10/15 26%
Fri 10/16 42%
Odds over time
Arrive at BOS more than 15 minutes late?
41%
chance · ±7 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
41%
Leave 15+ late
45%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.5d
2d
Now
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 22% · changed −1 pt in 24h
−1 pt
41%
Yes 41%
No 59%
Leave DEN more than 15 minutes late?
Calm-weather odds: 26% · changed +1 pt in 24h
+1 pt
45%
Yes 45%
No 55%
Arrive at BOS more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BOS?
On time or early
58%
15–30 min late
21%
30 min–1 hour late
14%
1–2 hours late
4%
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
↑
Arrivals into BOS at that hour are often late
↑
11am departures from DEN are often late
↑
This flight has been late 25% of the time recently
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at DEN
Weather at each end
DEN (origin)
Gusts 23 kt Ceiling none (clear) Visibility 10+ mi Precip none
BOS (destination)
Gusts 13 kt Ceiling 200 ft Visibility 2 mi Precip 0.43 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.