Here is guidance from the CDC for airline personnel:
Guidance for Airline Cleaning Personnel
Ebola virus is transmitted by close contact * with a person who has symptoms of Ebola. Treat any body fluid as though it is infectious. Blood or body fluids on interior surfaces can spread Ebola if they get into your eyes, nose, or mouth. Therefore, hand hygiene is the most important infection control measure. Wear disposable impermeable gloves when cleaning visibly contaminated surfaces.
The airline's ground and cleaning crews should be notified so that preparations can be made to clean the aircraft after passengers have disembarked. When cleaning aircraft after a flight with a patient who may have had Ebola, personnel should follow these precautions:
Wear impermeable disposable gloves while cleaning the passenger cabin and lavatories.
Wipe down lavatory surfaces and frequently touched surfaces in the passenger cabin, such as armrests, seat backs, tray tables, light and air controls, and adjacent walls and windows with an Environmental Protection Agency (EPA)-registered low- or intermediate-level chemical household germicide. Follow manufacturer’s guidance for cleaning aircraft. Special cleaning of upholstery, carpets, or storage compartments is not indicated unless they are obviously soiled with blood or body fluids.
Special vacuuming equipment or procedures are not necessary.
Do not use compressed air, which might spread infectious material through the air.
If a seat cover is obviously soiled with blood or body fluids, it should be removed and discarded by the methods used for biohazardous material.
Throw used gloves away according to the company's recommended infection control precautions when cleaning is done or if they become soiled or damaged during cleaning.
Clean hands with soap and water (or waterless alcohol-based hand sanitizer when soap is not available) immediately after gloves are removed.
Guidance for Air Cargo Personnel
Packages should not pose a risk. Ebola virus is spread through direct contact with blood or body fluids (such as urine or saliva) from an infected person.
Packages visibly soiled with blood or body fluids should not be handled.
Cargo handlers should wash their hands often to prevent other infectious diseases.
* Close contact is defined as having cared for or lived with a person with Ebola or having a high likelihood of direct contact with blood or body fluids of an Ebola patient. Examples of close contact include kissing or embracing, sharing eating or drinking utensils, close conversation (<3 feet), physical examination, and any other direct physical contact between people. Close contact does not include walking by a person or briefly sitting across a room from a person.
I take from this and other CDC publications that they don't exactly know the time the virus survives outside the body; it is quoted as "short". Whether that means a minute or up to an hour I have not seen specification of that.
As far as the "close contact": embracing etc. conversation<3 ft - that does bear the question of droplet infection.
I think it is simply not completely clear - the virus is not as well studied as for example the influenza virus.