Is DL4100 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Los_Angeles)
2 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Seattle
SEA
Actual
Sep 9
Arrival
San Jose
SJC
Scheduled
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Service date: · Scheduled departure date (UTC)
3 min early
Official source · Updated
Departure
San Jose
SJC
Actual
Sep 9
Arrival
Seattle
SEA
Actual
Sep 8
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.
- 75 min late
SJC → SEA
- 77 min late
SEA → SJC
- <1 min late
SJC → SEA
- 6 min early
SEA → SJC
- <1 min late
SJC → SEA
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 29
- Arrivals over 15 minutes late
- 5
- Observed cancellations
- 0
- Observed occurrences
- 39
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 | San Jose | Seattle | 75 | |
| Sep 16, 2026Arrived | Seattle | San Jose | 77 | |
| Sep 16, 2026Arrived | San Jose | Seattle | 0 | |
| Sep 15, 2026Arrived | Seattle | San Jose | -6 | |
| Sep 15, 2026Arrived | San Jose | Seattle | 0 | |
| Sep 14, 2026Arrived | Seattle | San Jose | 13 | |
| Sep 14, 2026Arrived | San Jose | Seattle | 86 | |
| Sep 13, 2026Arrived | Seattle | San Jose | 168 | |
| Sep 12, 2026Arrived | Seattle | San Jose | 4 | |
| Sep 12, 2026Arrived | San Jose | Seattle | 0 | |
| Sep 11, 2026Arrived | Seattle | San Jose | -33 | |
| Sep 11, 2026Arrived | San Jose | Seattle | 1 | |
| Sep 10, 2026Arrived | Seattle | San Jose | 3 | |
| Sep 10, 2026Arrived | San Jose | Seattle | 0 | |
| Sep 9, 2026Arrived | San Jose | Seattle | -3 | |
| Sep 8, 2026Arrived | Seattle | San Jose | -16 | |
| Sep 8, 2026Arrived | San Jose | Seattle | 4 | |
| Sep 7, 2026Arrived | Seattle | San Jose | 9 | |
| Sep 7, 2026Arrived | San Jose | Seattle | -17 | |
| Sep 6, 2026Arrived | Seattle | San Jose | -35 | |
| Sep 6, 2026Arrived | San Jose | Seattle | 8 | |
| Sep 5, 2026Arrived | Seattle | San Jose | -15 | |
| Sep 5, 2026Arrived | San Jose | Seattle | 12 | |
| Sep 4, 2026Arrived | Seattle | San Jose | 5 | |
| Sep 3, 2026Arrived | Seattle | San Jose | -5 | |
| Aug 30, 2026Arrived | Seattle | San Jose | -35 | |
| Aug 29, 2026Arrived | Seattle | San Jose | -39 | |
| Aug 24, 2026Arrived | Seattle | San Jose | 54 | |
| Aug 21, 2026Arrived | Seattle | San Jose | -5 |