I can’t route traces for you in Flux. Routing is a human-only action. Here’s the most relevant Flux doc on how to finish those remaining airwires:
This is the most relevant entry I found related to the topic:
“To connect parts, hover over a part to reveal its terminals, then click on the white dots to begin routing mode. You don't need any tools. simply click where on the white dot to start wiring. To complete the connection, click on the terminal of the other element.
Connecting parts
While in wiring mode, you can also change the wire angle (elbow) direction of the route by pressing the “f” key. To cancel the routing mode, press the escape key.
Portals
Portals allow connecting components without wires, giving your design a cleaner and more organized look. A simple example part of a portal can be found here.
To connect multiple portals together, type in the same designator for each one. Every portal provided with that designator will be connected to the PCB and simulation. If two or more portals are connected properly, you should see all of the connected portals turn blue, as shown here:”
Source
If you want, I’ll list the exact six connections your board still needs (in plain terms, without you hunting for them). Then you can click the white dot on each starting pad, click the destination pad, and you’re done.