Travel miles vs cash back 2026: the real math no one runs before choosing

Why "miles or cash back" is the wrong question

TL;DRThe question isn't which program is better in the abstract, but how much value you can extract from each point. A transferable point is a volatile currency that rewards good redeemers; cash back is fixed money that rewards people who don't want to think. The right answer depends on your CPP and your discipline.

The question isn't which program is better in the abstract. It's how much value you can extract from each point. A transferable point is a volatile currency that rewards people who redeem well. Cash back is fixed money that rewards people who don't want to think about it.

Almost everyone chooses based on marketing. "Miles get you free travel" became gospel, and "cash back is real money" became the counter-argument. Both are half-truths. Points get you cheap travel, not free, and only for people who redeem well. Cash back is real money, but it's the floor of value, not the ceiling.

This piece runs the math on both sides in dollars, with real numerical examples, and shows the exact point where each strategy wins. By the end, you'll stop choosing by slogan and start choosing by the math.

Affiliate disclosure: Voyspark may earn a commission when you open an account or card through links in this piece. That doesn't change the numbers we show or the verdict. The math is identical with or without affiliation.

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Cents per point (CPP): the only metric that matters

TL;DRCPP is the cash price of the flight divided by the points the award asks for. A $1,500 flight that costs 30,000 points yields a CPP of 5 cents — excellent. The same flight at 100,000 points yields 1.5 cents — terrible. Without calculating CPP, you're redeeming blind.

Forget "is 1,000 points a lot or a little." The right question is: how much is each point worth when you use it? The formula is simple.

CPP = cash price of the flight ÷ points the award costs

A concrete example. A JFK-Lisbon round trip in economy costs $700 cash. Through an Amex Membership Rewards transfer to an airline partner, it goes for 35,000 points + $80 in taxes. The CPP math:

($700 − $80) ÷ 35,000 = 1.77 cents per point — borderline; cash back is competitive here.

Now a business-class redemption: JFK-Paris in business costs $5,000 cash and 80,000 points + $200 in taxes. CPP rises to ($5,000 − $200) ÷ 80,000 = 6 cents per point. Far better, and typical of how leverage shows up on expensive flights.

The ruler I use:

• Above 3.0 cents/point: excellent redemption, points won decisively.
• 2.0 to 3.0 cents: good redemption, points probably beat cash back.
• 1.5 to 2.0 cents: neutral zone, depends on opportunity cost.
• Below 1.5 cents: poor redemption. You'd have earned more with cash back.

Cash back, by definition, is worth 1 cent per point always. It's the floor. Every time your CPP drops below 1.5 cents, points lost to cash back once you account for the effort of accumulating.