Delta Air Lines
Is DL3817 delayed?
Yes, DL3817 left Seattle 17 min late, at 09:31 on Nov 15. Arrival time not confirmed yet.
Usually on time: 26 of its last 31 graded arrivals landed within 15 min of schedule. We say “usually” only from 20 graded arrivals, with two in three or more on one side.
Each route and date is shown separately. Confirm that both airports match your booking.
17 min late
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Seattle
SEA
Actual
Scheduled 09:15
Nov 15
Arrival
Boise
BOI
Scheduled
Nov 15
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
Boise
BOI
Scheduled
Nov 15
Arrival
Seattle
SEA
Scheduled
Nov 15
Times shown in airport local time
Service date: · Scheduled departure date (America/Boise)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 71 min late
Boise → Seattle
- 16 min early
Boise → Seattle
- On time
Seattle → Boise
- 51 min late
Boise → Seattle
- 46 min late
Seattle → Boise
Is DL3817 usually late?
Period: Oct 16, 2026 – Nov 15, 2026
On time means landing no more than 15 minutes after the scheduled arrival, late more than 15 minutes after, both times read to the minute. The percentages share one base: graded arrivals plus cancelled and diverted flights. A cancelled plan another plan of the flight replaced within 12 hours is not counted. Median and “9 in 10” are interpolated over the graded arrivals. Compares scheduled and actual arrival times, read to the minute. Some flights may be missing.
Departures on record at these airports today
Seattle (SEA) departures
- Delayed: left more than 15 min after schedule
- 23 delayed, 5 cancelled of 133 departures on record
Counts cover the departures on record at each airport, not its full schedule.
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 14, 2026Arrived | Boise | Seattle | 71 | |
| Nov 13, 2026Arrived | Boise | Seattle | -16 | |
| Nov 13, 2026Arrived | Seattle | Boise | 0 | |
| Nov 12, 2026Arrived | Boise | Seattle | 51 | |
| Nov 12, 2026Arrived | Seattle | Boise | 46 | |
| Nov 11, 2026Arrived | Boise | Seattle | 30 | |
| Nov 11, 2026Arrived | Seattle | Boise | 8 | |
| Nov 10, 2026Arrived | Seattle | Boise | 15 | |
| Nov 9, 2026Arrived | Seattle | Boise | 8 | |
| Nov 8, 2026Arrived | Albuquerque | Los Angeles | -3 | |
| Nov 7, 2026Arrived | Albuquerque | Los Angeles | -3 | |
| Nov 6, 2026Arrived | Albuquerque | Los Angeles | -10 | |
| Nov 5, 2026Arrived | Albuquerque | Los Angeles | -9 | |
| Nov 4, 2026Arrived | Albuquerque | Los Angeles | -4 | |
| Nov 3, 2026Arrived | Albuquerque | Los Angeles | 26 | |
| Nov 2, 2026Arrived | Albuquerque | Los Angeles | 8 | |
| Nov 1, 2026Arrived | Albuquerque | Los Angeles | -4 | |
| Oct 31, 2026Arrived | Albuquerque | Los Angeles | 0 | |
| Oct 29, 2026Arrived | Albuquerque | Los Angeles | 14 | |
| Oct 28, 2026Arrived | Albuquerque | Los Angeles | -19 | |
| Oct 27, 2026Arrived | Albuquerque | Los Angeles | -1 | |
| Oct 26, 2026Arrived | Albuquerque | Los Angeles | 3 | |
| Oct 25, 2026Arrived | Albuquerque | Los Angeles | 0 | |
| Oct 24, 2026Arrived | Albuquerque | Los Angeles | 4 | |
| Oct 23, 2026Arrived | Albuquerque | Los Angeles | -3 | |
| Oct 22, 2026Arrived | Albuquerque | Los Angeles | 11 | |
| Oct 21, 2026Arrived | Albuquerque | Los Angeles | 8 | |
| Oct 20, 2026Arrived | Albuquerque | Los Angeles | -16 | |
| Oct 19, 2026Arrived | Albuquerque | Los Angeles | -2 | |
| Oct 18, 2026Arrived | Albuquerque | Los Angeles | 10 | |
| Oct 17, 2026Arrived | Albuquerque | Los Angeles | 3 |