Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
REPUBLIC · FLIGHT YX 4803
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
YX 4803 · DCA → BOS
departs 3:59 PM ET · arrives 5:45 PM ET
Forecast issued Fri 7:00 PM ET · 21h before departure
Watch this flight
Odds over time
Arrive at BOS more than 15 minutes late?
11%
chance · ±2 pts
−1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
11%
Leave 15+ late
13%
Arrive 1h+ late
6%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.7d
2d
Now
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
11%
Yes 11%
No 89%
Leave DCA more than 15 minutes late?
Calm-weather odds: 8% · changed −2 pts in 24h
−2 pts
13%
Yes 13%
No 87%
Arrive at BOS more than an hour late?
Calm-weather odds: 2% · changed −1 pt in 24h
−1 pt
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to BOS?
On time or early
87%
15–30 min late
1%
30 min–1 hour late
4%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
3pm departures from DCA are often late
↑
Arrivals into BOS at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
YX's recent on-time record
↓
Saturdays in October are usually quieter than average
Weather at each end
DCA (origin)
Gusts 15 kt Ceiling 3,500 ft Visibility 7 mi Precip 0.21 in
BOS (destination)
Gusts 11 kt Ceiling 4,500 ft Visibility 10+ mi Precip 0.03 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.