United Airlines
Is UA9855 delayed?
Service date: · Scheduled arrival date; departure time unavailable (Europe/Vienna)
Estimated arrivalLast reported
48 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Boston
BOS
Scheduled
Not available
Arrival
Vienna
VIE
Estimated
Scheduled 07:10
Sep 17
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Operating flight: AUA32
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 15 min early
BOS → VIE
- 6 min early
BOS → VIE
- 9 min early
BOS → VIE
- 39 min early
BOS → VIE
- 16 min early
BOS → VIE
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 11
- Arrivals over 15 minutes late
- 0
- Observed cancellations
- 0
- Observed occurrences
- 11
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 | Boston | Vienna | -15 | |
| Sep 15, 2026Arrived | Boston | Vienna | -6 | |
| Sep 13, 2026Arrived | Boston | Vienna | -9 | |
| Sep 12, 2026Arrived | Boston | Vienna | -39 | |
| Sep 11, 2026Arrived | Boston | Vienna | -16 | |
| Sep 10, 2026Arrived | Boston | Vienna | -26 | |
| Sep 9, 2026Arrived | Boston | Vienna | -25 | |
| Sep 8, 2026Arrived | Boston | Vienna | -15 | |
| Sep 6, 2026Arrived | Boston | Vienna | -15 | |
| Sep 5, 2026Arrived | Boston | Vienna | 15 | |
| Sep 4, 2026Arrived | Boston | Vienna | 0 |