The checklist for onsite trips vary with the destination--meaning much of the content is country-specific, even though the general aspects like air tickets, visa processing, etc would be, by & large, common--but those aspects are usually handled by the Travel agents.
Pl give more details like, country, approx period of assignment, type of visa, going with/without family, etc. More the inputs, the better/accurate the members can suggest.
From India, Hyderabad
Sharmila DasDear Ms.
The only option for any one going abroad for either Studies or by Work is they should be flexible around. To make a trip easier a checklist that you've been making is merely helpful, easier and little less scary.
Please find the below link and get some idea on the Travel Checklist -
Source: Travel Checklist - Plan your Trip or Vacation
From India, Visakhapatnam