[Grammar] Returning

[MAJSH]

As I informed you earlier, I will be travelling back on Monday night and will be reaching there early Tuesday morning.
Since the authority have imposed lockdown here in our place, I am closely monitoring the situation / I am watching the situation closely and guidelines. If any changes on flight schedules or if any travel ban is imposed, I'll update you accordingly. Currently, there is no flight service available from my town so, I am boarding from the next nearest airport.

Please check the sentences above and advise if they are grammatically correct.

 

[emsr2d2]

Please check the sentences [STRIKE]above[/STRIKE] below and advise if they are grammatically correct.

As I previously informed you [STRIKE]earlier[/STRIKE], I will be travelling back on Monday night and will [STRIKE]be reaching there[/STRIKE] arrive early Tuesday morning.
[STRIKE]Since[/STRIKE] The [STRIKE]authority[/STRIKE] authorities have imposed lockdown here [STRIKE]in our place[/STRIKE] so I am closely monitoring the situation [STRIKE]/ I am watching the situation closely[/STRIKE] and guidelines.

If there are any changes [STRIKE]on[/STRIKE] to my flight [STRIKE]schedules[/STRIKE] schedule or if [STRIKE]any[/STRIKE] a travel ban is imposed, I'll update you accordingly. Currently, there [STRIKE]is[/STRIKE] are no flights [STRIKE]service available[/STRIKE] from my town so no comma here I [STRIKE]am boarding[/STRIKE] have to travel from the next nearest airport.

See above.

 

[Charlie Bernstein]

Good edits.

In American English, "As I informed you earlier" is fine for a formal letter.