Ethiopian Airlines said passengers from at least 35 countries were on the flight.
At the opening of the United Nations assembly in Nairobi, delegates paid their respects with a moment of silence, according to press reports from the Kenyan capital.
He said it was not unusual for the black boxes to be sent overseas as not every country had the equipment needed to analyse the data.
The US aviation regulator said on Tuesday it would not ground Boeing Co 737 MAX planes after the crash, bucking a trend of countries around the world that have suspended the aircraft's operations.
Ethiopia will ask European air-safety experts to analyse black boxes from a crashed Boeing jet in a sign United States authorities are not trusted to determine the cause of the disaster after ruling that the model is safe to fly.
Air Canada and rival WestJet Airlines operate a total of 37 Boeing 737 MAX jets.
It also says Egypt doesn't have these aircraft and that they are not part of its future plans.
The three USA airlines using the 737 MAX - Southwest Airlines Co, American Airlines Group Inc and United Airlines - stood by the aircraft.
Trump did not refer to Boeing or recent accidents, but his comments echoed an automation debate that partially lies at the center of an investigation into October's Lion Air crash in Indonesia.
"I'm grateful to live and that I have so many friends that made me feel their love - kisses to all and a warm thank you for your touching support".
Boeing, the world's biggest planemaker, has said it retains "full confidence" in the 737 MAX.
Also on the flight was Isabella Beryl Achie, from Homabay county about 300 kilometres west of Nairobi.
European regulators have grounded the model, along with China, Australia, India and others around the world.
Canada took action Wednesday, with Transport Minister Marc Garneau announcing restrictions barring "any air operator, both domestic and foreign", from flying the Boeing 737 Max 8 and 9 through Canadian airspace.
The airport authorities explained that they wanted to question him because he was the only passenger booked on the doomed flight who wasn't on board.
The announcement from the Civil Aviation Department cited the crash of two of the planes within less than five months and said the ban would continue "until further notice".
Some aviation experts have warned that finding answers in this crash could take months.
NAN reports that Asrat Begashaw, Head of Public Relations at Ethiopian Airlines, said embassy officials from various nations would accompany the families on the grim trip to the scene where human remains are still being gathered.