I’m looking at the S7 online schedule for service Novosibirsk -> Hong Kong and there’s something I don’t understand.

There’s a table,

http://www.s7.ru/info/timetable-flig...rom=OVB&to=HKG

which shows

* flight number
* route
* departure time
* arrival time
* days of week
* AC type
* (dates when the) flight operates

From now until the end of March, there appears to be one flight per week:

S7 831, leaving at 01:45 and arriving at 09:05 on day 4, utilising a 738.

However, the table takes eight rows to convey this information. We see ‘flight operates’

24.11.2016 — 24.11.2016 (one week)

01.12.2016 — 15.12.2016 (three weeks)

22.12.2016 — 22.12.2016 (one week)

29.12.2016 — 29.12.2016 (one week)

05.01.2017 — 05.01.2017 (one week)

12.10.2017 — 12.01.2017 (one week)

19.01.2017 — 09.02.2017 (four weeks)

16.02.2017 — 23.02.2017 (two weeks)


My question is: why all this repetition? When the flight number, times, day, and aircraft all remain the same, why not just one entry: 24.11.2016 — 23.03.2017?

What am I missing?