Delta Air Lines
Is DL4309 delayed?
DL4309 left Salt Lake City on schedule, at 11:21 on Sep 26 (1 min behind); its arrival time is not confirmed yet.
Each route and date is shown separately. Confirm that both airports match your booking.
On schedule (1 min behind)
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Salt Lake City
SLC
Actual
Scheduled 11:20
Sep 26
Arrival
West Yellowstone
WYS
Scheduled
Sep 26
Times shown in airport local time
Service date: · Scheduled departure date (America/Denver)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
11 min early
Official source · Updated
Departure
West Yellowstone
WYS
Scheduled
Sep 26
Arrival
Salt Lake City
SLC
Actual
Scheduled 14:01
Sep 26
Times shown in airport local time
Service date: · Scheduled departure date (America/Denver)
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.
- 11 min early
West Yellowstone → Salt Lake City
- 17 min late
West Yellowstone → Salt Lake City
Is DL4309 usually late?
Observation window: Sep 2, 2026 – Oct 2, 2026
Percentages and delay figures appear once 10 arrivals are recorded.
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
Salt Lake City (SLC) departures
- Left more than 15 min late
- 59 of 258
- Cancelled today
- 6
Related flights
Other flights KWYS → SLC
Return flights SLC → KWYS
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 26, 2026Arrived | West Yellowstone | Salt Lake City | -11 | |
| Sep 12, 2026Arrived | West Yellowstone | Salt Lake City | 17 |
Email me if DL4309 runs late
We email you if your next DL4309 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.