American Express Business Green Rewards Card vs Frontier Airlines World Mastercard®
Side-by-side comparison
| American Express Business Green Rewards Card | Frontier Airlines World Mastercard® | |
|---|---|---|
| Annual fee | $95 | $99 |
| Welcome offer | 15,000 Membership Rewards points | 100,000 miles |
| Advertising | 1% | 1% |
| Shipping | 1% | 1% |
| Office supplies | 1% | 1% |
| Phone & internet | 1% | 1% |
| Travel | 1% | 5% |
| Everything else | 1% | 1% |
| Est. yearly rewards* | $450 | $690 |
| Points type | Transfers to airlines & hotels | Locked to Frontier Miles |
| Network | Amex | 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 business spending, the American Express Business Green Rewards Card earns about $450 a year in rewards and the Frontier Airlines World Mastercard® about $690, valuing every point at a flat 1 cent. The American Express Business Green Rewards Card charges $95, 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 $236 a year more for a typical spender, mostly because it earns more where you spend most, on travel. The bigger difference is the ceiling: the American Express Business Green Rewards Card earns points you can move to travel partners for outsized value, while the Frontier Airlines World Mastercard® stays locked to a single airline or hotel program. Favor the American Express Business Green Rewards Card if you will use travel transfers, the Frontier Airlines World Mastercard® if you want simplicity. 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 Frontier Airlines World Mastercard® if your spending leans toward travel.