DL851 Delta Air Lines - Flight Status

Which is the frequency of flight DL851?
The flight DL851 is scheduled to flight on Monday, Thursday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight DL851?
The distance between the two airports is 1745 miles.

Which is the flight time of flight DL851?
The scheduled flight time gate to gate is: 03:42 hours.
The real flight time gate to gate on average is: 03:48 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Las Vegas: 2025-09-13 09:18:18
Current Time in Detroit: 2025-09-13 12:18:18

The following airlines serves the same route between Las Vegas and Detroit:

Delta Air Lines
- Flight Number: DL470. (On Time performance: 85 - Average Delay: 10 minutes)
- Flight Number: DL778. (On Time performance: 72 - Average Delay: 33 minutes)
- Flight Number: DL793. (On Time performance: 77 - Average Delay: 11 minutes)
- Flight Number: DL864. (On Time performance: 95 - Average Delay: 4 minutes)

Spirit Airlines
- Flight Number: NK185.
- Flight Number: NK2048. (On Time performance: 77 - Average Delay: 6 minutes)
- Flight Number: NK2187. (On Time performance: 88 - Average Delay: 4 minutes)
- Flight Number: NK797.

Southwest Airlines
- Flight Number: WN1343.
- Flight Number: WN2598. (On Time performance: 64 - Average Delay: 12 minutes)

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from May 07, 2025 to August 31, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from September 02, 2024 to August 31, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.