The missing Air Algerie aircraft took off from Burkina Faso at 01:17 local time (02:17am BST) and was supposed to land in Algiers at 05:10 local time (05:10am BST) but never reached its destination, Swiftair says.
Algeria's APS state news agency says the flight lost contact around 50 minutes in to its journey.
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The report also said that many graduates do not even see a 'earnings premium' from their years at university.
The country's counter-terrorism forces have regained control of the facility.
The commissioner of the Metropolitan Police has said he cannot promise the public an attack will not take place.