Assuming you’re in the U.S., a higher credit limit can help if your spending stays the same. There’s no need to rush to get one or skip an airline ticket you can afford. Focus on paying your full statement balance on time.

The advice to “always stay below 30%” is too rigid. Lower reported utilization generally helps your score, but crossing 30% doesn’t suddenly turn good credit into bad credit. [FICO explains this explicitly.](https://www.myfico.com/credit-education/blog/credit-utilization-be)

Utilization usually depends on the balance reported when your statement closes. Your total spending during the month may be higher. For a $400 ticket on a card with a $1,000 limit and no other charges:

- If the full $400 appears on your statement, your reported utilization will typically be 40%, even if you pay it in full by the due date.
- If you pay $350 before the statement closes, the remaining $50 would typically report as 5% utilization. You’d then pay that $50 by the statement’s due date.

Reporting schedules vary by issuer, so keep track of both dates: the statement closing date affects the balance that typically gets reported, and the payment due date is when you need to pay that statement balance. [FICO’s reporting explanation](https://www.myfico.com/credit-education/blog/carry-credit-card-balance-myth)

Reporting 40% utilization could temporarily lower your score. Most FICO models use the latest reported balances, so that effect generally reverses when a lower balance is reported. Some models also consider historical trends, which makes “utilization never has any memory” too broad a claim. An occasional ticket purchase still isn’t equivalent to a missed payment. [FICO on current balances and trends](https://www.myfico.com/credit-education/blog/carry-credit-card-balance-myth)

For your situation, I’d use the card for purchases you’ve budgeted for and set autopay to cover the full statement balance while you build a payment history. A limit increase is reasonable when you’re eligible. Before requesting one, check whether it requires a hard inquiry, which can temporarily affect your score, or a soft inquiry, which doesn’t. [Experian’s guidance](https://www.experian.com/blogs/ask-experian/does-getting-declined-for-a-credit-limit-increase-affect-your-credit/)

If you don’t have a credit application coming up, you don’t need to optimize your score every month. As an application approaches, paying down the balance before it’s reported can lower your utilization without changing your limit. You never need to carry debt or pay interest to build credit. [FICO’s guidance](https://www.myfico.com/credit-education/blog/carry-credit-card-balance-myth)