Sign-up bonuses, the fastest free flight

The slow way and the fast way

In the last lesson, we did the math on everyday points. A family running $2,500 a month through a decent card collects around 45,000 points a year.

A year. Twelve months of groceries and gas bills to earn one trip.

Now here's the fast way. Many travel cards greet new customers with a welcome bonus: spend a set amount in the first few months, often $3,000 to $4,000, and they drop 50,000, 60,000, sometimes 75,000+ points into your account. All at once.

That's a year or two of collecting, compressed into ninety days. It is, by a mile, the biggest single prize in the entire points game.

And most people walk right past it. They keep swiping the same card they got in college, earning crumbs, while the person next to them in line picks up a trip to Portugal for filling out one application.

Why would a bank just hand you a flight?

Fair question. Banks don't do charity. So what's their angle?

Simple: they're paying to acquire you. A bank makes money every time you swipe (those store fees from the last lesson), and it makes a fortune if you ever carry a balance. A new cardholder is worth hundreds of dollars a year to them, so they'll happily spend a few hundred in points to win you from a rival.

Airlines and banks budget billions for this. The bonuses aren't a glitch or a limited-time miracle. They're the sticker price banks pay for customers.

Which means the only real question is the one from last time: are you the customer they profit from, or the one who takes the bonus and never pays them a cent of interest?

Players take the bonus. Marks take the balance.

The one number that matters: minimum spend

Every welcome offer has the same shape: "Earn X points after spending $Y in the first Z months."

That $Y is called the minimum spend, and it's where the game is won or lost.

Here's the trap, and it's the whole trap: people see the deadline and start buying things to "hit the number." A new TV. Gadgets. Dinners out they wouldn't have had. They spend $800 extra to earn a bonus worth $700.

That's not travel hacking. That's a coupon convincing you to shop.

The players' rule is dead simple: the minimum spend must be money you were going to spend anyway. Nothing new. Same life, different pipe.

How players hit the target without spending a dime extra

Before applying for anything, players do one boring calculation. You should too:

1. Add up your normal monthly card-able spending. Groceries, gas, insurance, phone, subscriptions, utilities that take a card without a fee.
2. Multiply by the offer window. If you naturally spend $1,200 a month and the offer is "$4,000 in 3 months," you've got $3,600 of natural spend. Close, but short.
3. Look for spending you can shift, not create. Annual insurance premium coming due? A dental bill you'd pay anyway? A planned purchase you were making regardless? Time those into the window.
4. If the math doesn't reach the target, skip that card. There's always another offer. A bonus you have to buy isn't a bonus.

That fourth point is what separates the calm players from the people with regret and a closet full of stuff. The offers rotate constantly, the same card's bonus goes up and down through the year. Missing one specific offer costs you nothing. Forcing one costs you plenty.

One honest warning about timing

Two things are true at once, and players hold both:

First: offers really do change. A card offering 75,000 points this quarter might offer 50,000 next quarter. When an unusually big offer appears and your natural spending covers the target, hesitating can genuinely cost you a flight.

Second: your setup matters more than any single offer. A new card application dings your credit score a few points for a few months. That's trivial, unless you're about to apply for a mortgage or car loan, in which case wait. No flight is worth a worse rate on a house.

And the rule from last lesson never blinks: if you carry a balance even one month, the interest starts devouring the bonus. A 60,000-point bonus is worth maybe $700–$900 in travel. Carrying a $4,000 balance at 24% burns about $80 a month. A year of that and your "free" trip cost you more than paying cash. The debt-first rule isn't a suggestion. It's the price of admission.

Start today in four steps

1. Calculate your natural monthly spend. Everything that can go on a card without fees. Write the number down, it's your budget for every offer you'll ever consider.
2. Check your calendar. Mortgage or big loan coming in the next six months? Bookmark this and come back after.
3. Window-shop, don't apply yet. Look at what welcome offers exist for the kind of travel you actually want. Notice how the minimum spends compare to your number.
4. Read the next lesson first. Because there's a version of this game where people chase bonuses straight into debt and feed the banks everything, and one habit is all that separates the two endings.

One application. Ninety days of normal spending. A flight you didn't pay for. That's the fast lane — as long as you're the one driving it, and not the bank.