Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2918
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
WN 2918 · BWI → GRR
departs 11:30 AM ET · arrives 1:10 PM ET
Forecast issued Wed 10:00 PM ET · 10h after departure
Watch this flight
Odds over time
Arrive at GRR more than 15 minutes late?
17%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
17%
Leave 15+ late
19%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 17% · changed −1 pt in 24h
−1 pt
17%
Yes 17%
No 83%
Leave BWI more than 15 minutes late?
Calm-weather odds: 19% · changed +0 pts in 24h
+0 pts
19%
Yes 19%
No 81%
Arrive at GRR more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to GRR?
On time or early
82%
15–30 min late
8%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, visibility down to 1.25 mi, 0.4 in of rain forecast at GRR that day
↑
This flight has been late 26% of the time recently
↑
WN's recent on-time record
↓
Wednesdays in September are usually quieter than average
↓
GRR usually runs smoothly
Weather at each end
BWI (origin)
Gusts 7 kt Ceiling 4,900 ft Visibility 10+ mi Precip none
GRR (destination)
Gusts 11 kt Ceiling 600 ft Visibility 1.25 mi Precip 0.35 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.