Is DL859 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
20 min early
Official source · Updated
Departure
Boston
BOS
Actual
Scheduled 06:05
Sep 6
Arrival
Salt Lake City
SLC
Actual
Scheduled 09:17
Sep 6
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 4 min early
BOS → SLC
- 1 min late
BOS → SLC
- 13 min late
BOS → SLC
- 27 min late
BOS → SLC
- 3 min late
BOS → SLC
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 25
- Arrivals over 15 minutes late
- 1
- Observed cancellations
- 0
- Observed occurrences
- 30
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 | Salt Lake City | -4 | |
| Sep 16, 2026Arrived | Boston | Salt Lake City | 1 | |
| Sep 15, 2026Arrived | Boston | Salt Lake City | 13 | |
| Sep 13, 2026Arrived | Boston | Salt Lake City | 27 | |
| Sep 12, 2026Arrived | Boston | Salt Lake City | 3 | |
| Sep 11, 2026Arrived | Boston | Salt Lake City | -25 | |
| Sep 10, 2026Arrived | Boston | Salt Lake City | 10 | |
| Sep 9, 2026Arrived | Boston | Salt Lake City | 12 | |
| Sep 8, 2026Arrived | Boston | Salt Lake City | 7 | |
| Sep 7, 2026Arrived | Boston | Salt Lake City | -11 | |
| Sep 6, 2026Arrived | Boston | Salt Lake City | -20 | |
| Sep 5, 2026Arrived | Boston | Salt Lake City | -20 | |
| Sep 4, 2026Arrived | Boston | Salt Lake City | 3 | |
| Sep 3, 2026Arrived | Boston | Salt Lake City | 4 | |
| Sep 2, 2026Arrived | Boston | Salt Lake City | -4 | |
| Sep 1, 2026Arrived | Boston | Salt Lake City | -3 | |
| Aug 31, 2026Arrived | Boston | Salt Lake City | -10 | |
| Aug 30, 2026Arrived | Boston | Salt Lake City | 9 | |
| Aug 29, 2026Arrived | Boston | Salt Lake City | -16 | |
| Aug 28, 2026Arrived | Boston | Salt Lake City | -3 | |
| Aug 27, 2026Arrived | Boston | Salt Lake City | -5 | |
| Aug 26, 2026Arrived | Boston | Salt Lake City | -6 | |
| Aug 25, 2026Arrived | Boston | Salt Lake City | -10 | |
| Aug 24, 2026Arrived | Boston | Salt Lake City | -9 | |
| Aug 21, 2026Arrived | Boston | Salt Lake City | -11 |