Hi I notice a few problems:
TBH free program on x plane 11 shows alot more .
I dont know where all you are flying, but I see a ton of traffic on every flight I make, regardless of the distance flown. Im wondering if you’ve got all of the online settings turned, and I wonder if you have set a data cap. Ive got a 1gb/s download speed and a 500mb/s upload speed with no data limit.
I have seen same as OP. I have Live Traffic. On always. Rarely do8 ever see any traffic. I think it matters where you are flying really. I feel like it shows less traffic than really actually exists, so if you are flying out of smaller places, it’s going to feel barren.
Also, the one “real” plane I saw land near me at CHS just sat on the runway afterwards. Act kept telling them to move, and me t9 wait for them. They eventually just despawned.
this is very bizarre. Ive made multiple flights between KCVG and KDFW and average about 20 aircraft encounters every flight. Flying from KJAN to KATL, I see almost as many other aircraft, and that flight is about half the distance of the KCVG to KDFW flight. Even the flight from KATL to KDCA had a good number of aircraft encounters. So, I just don’t know.
Well , I am using large airports. KLAX is LA. I tried Seattle also. On world map it showed green planes in the area but when loaded into the airport none were to be seen.
In anycase, the GREEN planes on world “globe” is much less than the real air traffic cited on Flightaware.
I am East coast, unlimited Bandwidth, 200 mbps download, 36 upload. I wonder if we all in different servers?
What about AI aircraft?
I know Settings has sliders for how much ai traffic happens. But I assumed it only applied when AI was selected as traffic type. But maybe it applies for live traffic as well.
Boring times. Fly without anyone in the air. Real traffic … no one. Traffic AI, even with adjustments at 100%, as in FSX, poor … without anyone. Empty skies. Horribly sad.
Where were you flying? It if shows up on FlightAware, you should see it in FS a few minutes later.
yeah im the same - havent seen a single aircraft in the sky. Im sure its a bug that needs to be fixed thats all.
I see some but very few compring to flightradar
hmmm… I was flying around the other night in southern Ontario in the game, had multiplayer and live traffic on and their must have been about 7-8 aircraft in the skies. Again this was about 2 AM local time. Perhaps you might not see them as they are further away. You can always turn the tags on for aircraft and they will be labelled as you fly around.
I have the labels
At this time in klax there sre ablut 10 planes landing and taking off
I just see 2
I just flew from Heathrow to Heathrow. 30 minutes. "AI offline ON - traffic density 100% - labels ON. There were 500 airliners landed. Not even single one in the air. All stopped. Deads. Terrible. Much worse than FSX.
Perhaps the idea is to sell a new one traffic generator add-on. Have you seen that before? Worse is now this will be made by a commercial partner in the “FS market store”. I hope not.
Vanilla AI will never be good, and Asobo shouldn’t focus on adding in more or better vanilla AI, just adding in mechanics to make it overall better, and make it easy to add in third party AI.
I agree with you but ..this 
is too much. Even a single plane flying would be a problem? Ridiculous. 
Back to the FSX!!! Who knows. 34 years from now this will be good too.
Offline ai is not working now only live traffic , but even live traffic need to have more plane especially on big aiports if you compare with flightaware. Anyway too many bug with the ai traffic at the moment and on the last insider update it shows they are working so maybe on next big update
The thing is so bad in terms of offline AI traffic that the only airliner that I have seen took off without the tower’s authorization. 
I am so sorry about that. I hope this improves asap. It is very very very annoying to fly in an empty sky. Only beautiful landscapes was not the really simmers was expecting of FS20. Until that happens I will be back to the old and ugly but good FSX. 34 years of experience.
This might be a little late but under the traffic setting in General there are sliders to change the density of air traffic for both airliners as well as GA aircraft. Initially I thought there were barely any aircraft as well but I adjusted the sliders up to about 70% or so and saw a lot of improvement in AI traffic density (for Offline AI mode) so that may help. There’s also a slider in that same place to increase the amount of aircraft you see parked at airports which helps with immersion. Hope this helps.
Sometimes changing server or loading the Live Activity Screen for different airports before starting flight can kick start Live traffic. But the problem is that the traffic in the air looks awful, like bright red och green dots flying around. Dont know how they managed to make the AI-aircraft lights so bad, when light is where this simulator really shines. And when the aircraft fly around they seem to fly like crazy because you repeatedly hear ATC telling aircraft they are 20 000 feet to high… No wonder you almost never see any planes land.
I have sent several reports to Zendesk about these problems and hope more of you guys do. For me ATC and AI-traffic is a very important part of the experience and I hope that all the issues will be sorted. I have had one successfull IFR flight so far where I got really impressed by the ATC, with correct vectors for the STAR. Previous default ATC in FSX and P3D couldnt do that. So there is hope for something better.
But the few AI traffic didnt ever make it to touch down haha
Best regards
Jan