DL509 Delta Air Lines - Flight Status

Which is the frequency of flight DL509?
The flight DL509 is scheduled to flight on Monday, Thursday, Friday, Sunday on a weekly basis.

Which is the distance of flight DL509?
The distance between the two airports is 2075 miles.

Which is the flight time of flight DL509?
The scheduled flight time gate to gate is: 05:11 hours.
The real flight time gate to gate on average is: 05:10 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 Detroit: 2025-04-19 11:13:42
Current Time in San Francisco: 2025-04-19 08:13:42

The following airlines serves the same route between Detroit and San Francisco:

Delta Air Lines
- Flight Number: DL357.
- Flight Number: DL361. (On Time performance: 79 - Average Delay: 11 minutes)
- Flight Number: DL442. (On Time performance: 67 - Average Delay: 19 minutes)
- Flight Number: DL469. (On Time performance: 68 - Average Delay: 18 minutes)

United Airlines
- Flight Number: UA1116. (On Time performance: 83 - Average Delay: 12 minutes)
- Flight Number: UA2859. (On Time performance: 78 - Average Delay: 17 minutes)
- Flight Number: UA2866. (On Time performance: 81 - Average Delay: 21 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 October 15, 2024 to April 14, 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 June 07, 2024 to March 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.