American Express Blue Business Cash Card vs Southwest Rapid Rewards® Plus
Side-by-side comparison
| American Express Blue Business Cash Card | Southwest Rapid Rewards® Plus | |
|---|---|---|
| Annual fee | No annual fee | $99 |
| Welcome offer | $250 statement credit | |
| Advertising | 2% | 1% |
| Shipping | 2% | 1% |
| Office supplies | 2% | 1% |
| Phone & internet | 2% | 1% |
| Travel | 2% | 1% |
| Everything else | 2% | 1% |
| Est. yearly rewards* | $900 | $468 |
| Points type | Cash back only | Locked to Southwest Rapid Rewards |
| Network | Amex | Visa |
*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 Blue Business Cash Card earns about $900 a year in rewards and the Southwest Rapid Rewards® Plus about $468, valuing every point at a flat 1 cent. The American Express Blue Business Cash Card has no annual fee, so its rewards are all profit. The Southwest Rapid Rewards® Plus charges $99, which you clear through its rewards and perks. Counting rewards, fees, and any credits, the American Express Blue Business Cash Card delivers more total value, about $531 a year more for a typical spender, mostly because it earns more where you spend most, on everything else and advertising. 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 Southwest Rapid Rewards® Plus currently has the larger welcome offer (a limited-time offer above its usual amount, so treat it as a one-time boost). A welcome bonus is a one-time event, so weigh it apart from the ongoing rewards.
Pick the American Express Blue Business Cash Card if your spending leans toward advertising, shipping, office supplies.