UO542 HK Express - Flight Status

Which is the frequency of flight UO542?
The flight UO542 is scheduled to flight on Monday, Tuesday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight UO542?
The distance between the two airports is 849 kilometers.

Which is the flight time of flight UO542?
The scheduled flight time gate to gate is: 02:05 hours.
The real flight time gate to gate on average is: 02:17 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 Hong Kong: 2026-02-28 23:34:05
Current Time in Hanoi: 2026-02-28 22:34:05

The following airlines serves the same route between Hong Kong and Hanoi:

Cathay Pacific
- Flight Number: CX741. (On Time performance: 85 - Average Delay: 7 minutes)
- Flight Number: CX743. (On Time performance: 66 - Average Delay: 18 minutes)

Hong Kong Airlines
- Flight Number: HX528. (On Time performance: 40 - Average Delay: 23 minutes)

HK Express
- Flight Number: UO540. (On Time performance: 85 - Average Delay: 6 minutes)

Vietnam Airlines
- Flight Number: VN593. (On Time performance: 75 - Average Delay: 10 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 26, 2025 to February 24, 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: We have gathered available data from last twelve closed months, spanning from October 26, 2025 to January 09, 2026. 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.