Airliners have 200 tons of fuel. Assume less than 10 hr flights.
An airplane flying all day consumes 4,200 barrels in 3 flights. Us jet fuel consumption is 1.5 million barrels per day.
Is it impossible to fly more than 400 airliners at any time?
Airliners have 200 tons of fuel. Assume less than 10 hr flights.
An airplane flying all day consumes 4,200 barrels in 3 flights. Us jet fuel consumption is 1.5 million barrels per day.
Is it impossible to fly more than 400 airliners at any time?
No, it is not impossible to fly more than 400 airliners at any time.
According to Spikeaerospace.com:
Every day, some 93,000 flights take off from approximately 9,000 airports. At any given time, there are between 8,000 and 13,000 airplanes in the air.
So in fact, a great many more than what you might consider possible actually fly every single day.
Is it impossible to fly more than 400 airliners at any time?
I invite you to count the dots.
From flightradar24, just now.

Your math is wrong. A 737, for example, burns 850 gallons per hour, which is about 20 barrels. That is only 480 barrels per day even if the plane were running 24/7. There are larger airliners that burn more, but even a huge airliner like an A380 doesn't get close to 4200 barrels in a day.