CI851 China Airlines - Flight Status

Which is the frequency of flight CI851?
The flight CI851 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight CI851?
The distance between the two airports is 2398 kilometers.

Which is the flight time of flight CI851?
The scheduled flight time gate to gate is: 04:05 hours.
The real flight time gate to gate on average is: 03:45 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 Taipei: 2025-11-04 09:12:42
Current Time in Chiang Mai: 2025-11-04 08:12:42

The following airlines serves the same route between Taipei and Chiang Mai:

EVA Air
- Flight Number: BR257. (On Time performance: 96 - Average Delay: 3 minutes)

Thai AirAsia
- Flight Number: FD243. (On Time performance: 89 - Average Delay: 5 minutes)

Starlux Airlines
- Flight Number: JX751. (On Time performance: 95 - Average Delay: 1 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 April 30, 2025 to October 30, 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.

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: We have gathered available data from last twelve closed months, spanning from November 02, 2024 to October 30, 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.