Citi® / AAdvantage® Platinum Select® vs Frontier Airlines World Mastercard®
Side-by-side comparison
| Citi® / AAdvantage® Platinum Select® | Frontier Airlines World Mastercard® | |
|---|---|---|
| Annual fee | $99 | $99 |
| Welcome offer | 100,000 miles | |
| Dining | 2x | 3x |
| Groceries | 1x | 1x |
| Gas | 2x | 1x |
| Travel | 1x | 5x |
| Streaming | 1x | 1x |
| Everything else | 1x | 1x |
| Est. yearly rewards* | $343 | $424 |
| Points type | Locked to American Airlines AAdvantage | Locked to Frontier Miles |
| Network | Mastercard | Mastercard |
*Estimated yearly rewards on typical household spending, every point valued at a flat 1 cent. Verified June 2026. See your own numbers in the calculator.
The verdict
On a typical year of household spending, the Citi® / AAdvantage® Platinum Select® earns about $343 a year in rewards and the Frontier Airlines World Mastercard® about $424, valuing every point at a flat 1 cent. The Citi® / AAdvantage® Platinum Select® charges $99, which you clear through its rewards and perks. The Frontier Airlines World Mastercard® charges $99, which you clear through its rewards and perks. Counting rewards, fees, and any credits, the Frontier Airlines World Mastercard® delivers more total value, about $80 a year more for a typical spender, mostly because it earns more where you spend most, on travel and dining. Neither leans on transferable points, so the deciding factors are the welcome offer, the card network, and which everyday perks you will actually use. On the sign-up bonus, the Frontier Airlines World Mastercard® currently has the larger welcome offer. Note that Citi® / AAdvantage® Platinum Select® is running a limited-time offer above the usual amount, so that edge may not last. A welcome bonus is a one-time event, so weigh it apart from the ongoing rewards.
Pick the Citi® / AAdvantage® Platinum Select® if your spending leans toward gas. Pick the Frontier Airlines World Mastercard® if your spending leans toward dining, travel.