UA8140 United Airlines - Flight Status

Which is the frequency of flight UA8140?
The flight UA8140 is currently not scheduled at San Francisco Airport (SFO).

Which is the distance of flight UA8140?
The distance between the two airports is 1463 miles.

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 San Francisco: 2026-09-20 18:02:32
Current Time in Dallas: 2026-09-20 20:02:32

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

American Airlines
- Flight Number: AA1163. (On Time performance: 77 - Average Delay: 8 minutes)
- Flight Number: AA1188. (On Time performance: 80 - Average Delay: 10 minutes)
- Flight Number: AA1849. (On Time performance: 51 - Average Delay: 28 minutes)
- Flight Number: AA2111. (On Time performance: 78 - Average Delay: 12 minutes)
- Flight Number: AA2116. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: AA2205. (On Time performance: 54 - Average Delay: 27 minutes)
- Flight Number: AA2305. (On Time performance: 95 - Average Delay: 7 minutes)
- Flight Number: AA2387. (On Time performance: 42 - Average Delay: 44 minutes)
- Flight Number: AA2904. (On Time performance: 86 - Average Delay: 35 minutes)
- Flight Number: AA304. (On Time performance: 93 - Average Delay: 14 minutes)
- Flight Number: AA3222. (On Time performance: 40 - Average Delay: 26 minutes)
- Flight Number: AA557. (On Time performance: 80 - Average Delay: 13 minutes)

Frontier Airlines
- Flight Number: F92376. (On Time performance: 85 - Average Delay: 8 minutes)
- Flight Number: F92930. (On Time performance: 87 - Average Delay: 46 minutes)

United Airlines
- Flight Number: UA1062. (On Time performance: 82 - Average Delay: 5 minutes)
- Flight Number: UA1336. (On Time performance: 39 - Average Delay: 33 minutes)
- Flight Number: UA2842. (On Time performance: 66 - Average Delay: 20 minutes)
- Flight Number: UA292.
- Flight Number: UA5563. (On Time performance: 50 - Average Delay: 13 minutes)
- Flight Number: UA5638.
- Flight Number: UA5718. (On Time performance: 93 - Average Delay: 3 minutes)

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from April 04, 2026 to August 30, 2026. 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.

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

Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions