The military has suspended scheduled international commercial passenger flights until 31st May 2021 at the earliest. This does not apply to medevac flights. New tourist visa applications are currently suspended.

At present Myanmar authorities can offer business visas to foreign nationals with a compelling case. You or your employer must make your case to your nearest Myanmar Embassy and obtain permission.

These arrangements are subject to change and at short notice. There are temperature checks for all arrivals. Arrivals must provide evidence of a negative COVID-19 test result and passengers are subject to quarantine for 14 days.

Before travel, we advise that all visitors check with their nearest Myanmar Embassy or Consulate to confirm their current visa will allow them entry, or the criteria for obtaining or renewing a visa.

Source: https://www.gov.uk/foreign-travel-advice/myanmar/entry-requirements