Citi® / AAdvantage® MileUp® vs Frontier Airlines World Mastercard®
Side-by-side comparison
| Citi® / AAdvantage® MileUp® | Frontier Airlines World Mastercard® | |
|---|---|---|
| Annual fee | No annual fee | $99 |
| Welcome offer | 15,000 American Airlines AAdvantage® miles after $500 in 3 months | 100,000 miles |
| Dining | 1x | 3x |
| Groceries | 2x | 1x |
| Gas | 1x | 1x |
| Travel | 1x | 5x |
| Streaming | 1x | 1x |
| Everything else | 1x | 1x |
| Est. yearly rewards* | $352 | $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® MileUp® earns about $352 a year in rewards and the Frontier Airlines World Mastercard® about $424, valuing every point at a flat 1 cent. The Citi® / AAdvantage® MileUp® has no annual fee, so its rewards are all profit. The Frontier Airlines World Mastercard® charges $99, which you clear through its rewards and perks. Counting rewards, fees, and any credits, the Citi® / AAdvantage® MileUp® delivers more total value, about $27 a year more for a typical spender, mostly because it earns more where you spend most, on groceries. 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. A welcome bonus is a one-time event, so weigh it apart from the ongoing rewards.
Pick the Citi® / AAdvantage® MileUp® if your spending leans toward groceries. Pick the Frontier Airlines World Mastercard® if your spending leans toward dining, travel.