Delta Air Lines
Is DL4099 delayed?
Yes — DL4099 landed in Reno 30 min late, at 09:59 on Sep 29 (as of Sep 29, 17:00 UTC).
Usually on time: arrived within 15 min of schedule on 33 of the last 46 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
30 min late
Official source · Updated
Departure
Los Angeles
LAX
Actual
Scheduled 08:25
Sep 29
Arrival
Reno
RNO
Actual
Scheduled 09:28
Sep 29
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
26 min late
Official source · Updated
Departure
Reno
RNO
Scheduled
Sep 29
Arrival
Los Angeles
LAX
Actual
Scheduled 11:37
Sep 29
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
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.
- 26 min late
Reno → Los Angeles
- 30 min late
Los Angeles → Reno
- On schedule (8 min behind)
Reno → Los Angeles
- 12 min early
Los Angeles → Reno
- On schedule (14 min behind)
Reno → Los Angeles
Is DL4099 usually late?
Observation window: Aug 30, 2026 – Sep 29, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Los Angeles (LAX) departures
- Left more than 15 min late
- 40 of 241
- Cancelled today
- 1
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 29, 2026Arrived | Reno | Los Angeles | 26 | |
| Sep 29, 2026Arrived | Los Angeles | Reno | 30 | |
| Sep 28, 2026Arrived | Reno | Los Angeles | 8 | |
| Sep 28, 2026Arrived | Los Angeles | Reno | -12 | |
| Sep 27, 2026Arrived | Reno | Los Angeles | 14 | |
| Sep 27, 2026Arrived | Los Angeles | Reno | 2 | |
| Sep 26, 2026Arrived | Reno | Los Angeles | 17 | |
| Sep 26, 2026Arrived | Los Angeles | Reno | -4 | |
| Sep 25, 2026Arrived | Los Angeles | Reno | 14 | |
| Sep 24, 2026Arrived | Reno | Los Angeles | 18 | |
| Sep 24, 2026Arrived | Los Angeles | Reno | 1 | |
| Sep 23, 2026Arrived | Reno | Los Angeles | -16 | |
| Sep 23, 2026Arrived | Los Angeles | Reno | 2 | |
| Sep 22, 2026Arrived | Reno | Los Angeles | -18 | |
| Sep 22, 2026Arrived | Los Angeles | Reno | -16 | |
| Sep 21, 2026Arrived | Reno | Los Angeles | 8 | |
| Sep 21, 2026Arrived | Los Angeles | Reno | -5 | |
| Sep 20, 2026Arrived | Reno | Los Angeles | 42 | |
| Sep 20, 2026Arrived | Los Angeles | Reno | 15 | |
| Sep 19, 2026Arrived | Reno | Los Angeles | 6 | |
| Sep 19, 2026Arrived | Los Angeles | Reno | 6 | |
| Sep 18, 2026Arrived | Reno | Los Angeles | 9 | |
| Sep 18, 2026Arrived | Los Angeles | Reno | -7 | |
| Sep 17, 2026Arrived | Reno | Los Angeles | 7 | |
| Sep 17, 2026Arrived | Los Angeles | Reno | 6 | |
| Sep 16, 2026Arrived | Reno | Los Angeles | 31 | |
| Sep 16, 2026Arrived | Los Angeles | Reno | 10 | |
| Sep 14, 2026Arrived | Reno | Los Angeles | 31 | |
| Sep 14, 2026Arrived | Los Angeles | Reno | 8 | |
| Sep 13, 2026Arrived | Reno | Los Angeles | 27 | |
| Sep 12, 2026Arrived | Los Angeles | Reno | -12 | |
| Sep 11, 2026Arrived | Reno | Los Angeles | -14 | |
| Sep 10, 2026Arrived | Reno | Los Angeles | 11 | |
| Sep 9, 2026Arrived | Reno | Los Angeles | -14 | |
| Sep 9, 2026Arrived | Los Angeles | Reno | -18 | |
| Sep 8, 2026Arrived | Reno | Los Angeles | 39 | |
| Sep 8, 2026Arrived | Los Angeles | Reno | -17 | |
| Sep 7, 2026Arrived | Reno | Los Angeles | 2 | |
| Sep 7, 2026Arrived | Los Angeles | Reno | -1 | |
| Sep 6, 2026Arrived | Reno | Los Angeles | 15 | |
| Sep 6, 2026Arrived | Los Angeles | Reno | -7 | |
| Sep 5, 2026Arrived | Reno | Los Angeles | -8 | |
| Sep 5, 2026Arrived | Los Angeles | Reno | -6 | |
| Sep 4, 2026Arrived | Reno | Los Angeles | 17 | |
| Sep 4, 2026Arrived | Los Angeles | Reno | 25 | |
| Sep 1, 2026Arrived | Los Angeles | Reno | -20 |
Email me if DL4099 runs late
We email you if your next DL4099 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.