TAP Portugal
Is TP4399 delayed?
Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)
Arrived
84 min late
Official source · Updated
Departure
Boston
BOS
Scheduled
Not available
Arrival
San Francisco
SFO
Actual
Scheduled 00:56
Sep 12
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: JBU413
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 47 min late
BOS → SFO
- 19 min late
BOS → SFO
- 1 min early
BOS → SFO
- 79 min late
BOS → SFO
- 4 min late
BOS → SFO
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 14
- Arrivals over 15 minutes late
- 10
- Observed cancellations
- 0
- Observed occurrences
- 14
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 17, 2026Arrived | Boston | San Francisco | 47 | |
| Sep 16, 2026Arrived | Boston | San Francisco | 19 | |
| Sep 15, 2026Arrived | Boston | San Francisco | -1 | |
| Sep 14, 2026Arrived | Boston | San Francisco | 79 | |
| Sep 13, 2026Arrived | Boston | San Francisco | 4 | |
| Sep 12, 2026Arrived | Boston | San Francisco | 84 | |
| Sep 11, 2026Arrived | Boston | San Francisco | 26 | |
| Sep 10, 2026Arrived | Boston | San Francisco | 43 | |
| Sep 9, 2026Arrived | Boston | San Francisco | 34 | |
| Sep 8, 2026Arrived | Boston | San Francisco | 81 | |
| Sep 7, 2026Arrived | Boston | San Francisco | 175 | |
| Sep 6, 2026Arrived | Boston | San Francisco | -12 | |
| Sep 5, 2026Arrived | Boston | San Francisco | 1 | |
| Sep 4, 2026Arrived | Boston | San Francisco | 33 |