Is AAL4721 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
78 min late
Official source · Updated
Departure
Philadelphia
PHL
Scheduled
Sep 16
Arrival
Boston
BOS
Actual
Scheduled 19:00
Sep 16
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
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Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 78 min late
PHL → BOS
- 30 min late
PHL → BOS
- 35 min late
PHL → BOS
- 69 min late
PHL → BOS
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 4
- Arrivals over 15 minutes late
- 4
- Observed cancellations
- 0
- Observed occurrences
- 4
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 16, 2026Arrived | Philadelphia | Boston | 78 | |
| Sep 15, 2026Arrived | Philadelphia | Boston | 30 | |
| Sep 12, 2026Arrived | Philadelphia | Boston | 35 | |
| Sep 9, 2026Arrived | Philadelphia | Boston | 69 |