Is it possible to draw graph with thousands of simple(basic) lines in UE?

I have a program that generates routes for aircrafts and basically it’s a huge 3D(lat, lon, alt) graph over our globe. My idea to create a sort of tool to debug the program and for that I need firstly to render in real time full Dijkstra propagation. In general, it’s a line from one coordinate to another with certain altitude. As a result, we have about 150000 lines(successful and not) for a flight from Vienna to London. The question is next: Can I draw big amount of lines in UE in real time(to show propagation, let’s say 1 million)? No? Yes? Why? If yes, how can I do that? Will I have anought FPS in order to navigate, move all these lines?

I tried with WebGL to draw 150000 lines and I had 1 FPS during rotating a sphere.