Is it normal for my cash flow to be low in the beginning?

Okay, so I have an airline based in Hong Kong and I've been operating for about three days and seem to be making a profit but my cash flow has a "D" rating and I don't know why. I've raised my prices from default to +5% is that too much or too little? If I raise my prices what level should they be at?

Your prices would depend on the route, competitive situation, product, seats, image, use of terminals, etc. There is no single answer, each airline is different.

It was only for the current cash flow. 

I've got 5 red bar of cash flow most of the time, but then BOOM! it got 5 green bar in a second. Usually, I did this, when I have calculated that in a day or two I will not need to pay anything (lease etc), then I bought something that drain my bank account, then the cash flow goes red, but then I know it will come back to green as the next two days I will get new money. 

your cash flow gives you the next expenses. you should always be able to pay those, so only spend money if you know, you gonna have enough income to cover the next expanxes.

if you are unable to cover your leases, the aircrafts are returned to the lessor and you lose the money for the seats. for the weekend closing, you MIGHT receive a rescue loan but at a very high interest rate.

regarding ticket prices, the easiest way is to check your load factor. does the flight book full? Maybe two or even three days in advance? rise the price.

given the way passenger distrubion works in AS right now, it is better to have a few seats less, but make them better. it is easier to fill the plane and you can ask a higher price. AS pax are not really price sensitive. the best over-all product rating relative to price (and in parts travel time) wins.

I also recommend watching youtube tutorials and reading this: a beginner's guide