American Express® Blue Business Plus vs United℠ Quest

American Express® Blue Business Plus
VS
United℠ Quest
The short answer: The American Express® Blue Business Plus delivers a bit more value for most spenders.

Side-by-side comparison

American Express® Blue Business PlusUnited℠ Quest
Annual feeNo annual fee$350
Welcome offer15,000 Membership Rewards® PointsUp to 70,000 bonus miles + 500 PQP
Advertising2%1%
Shipping2%1%
Office supplies2%1%
Phone & internet2%1%
Travel2%2%
Everything else2%1%
Est. yearly rewards*$900$522
Points typeTransfers to airlines & hotelsLocked to United MileagePlus
NetworkAmexVisa

*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 Plus earns about $900 a year in rewards and the United℠ Quest about $522, valuing every point at a flat 1 cent. The American Express® Blue Business Plus has no annual fee, so its rewards are all profit. The United℠ Quest charges $350, but carries about $200 in annual statement credits that offset it for anyone who uses them. Counting rewards, fees, and any credits, the American Express® Blue Business Plus delivers more total value, about $628 a year more for a typical spender, mostly because it earns more where you spend most, on everything else and advertising. The bigger difference is the ceiling: the American Express® Blue Business Plus earns points you can move to travel partners for outsized value, while the United℠ Quest stays locked to a single airline or hotel program. Favor the American Express® Blue Business Plus if you will use travel transfers, the United℠ Quest if you want simplicity. On the sign-up bonus, the United℠ Quest currently has the larger welcome offer. A welcome bonus is a one-time event, so weigh it apart from the ongoing rewards.

Pick the American Express® Blue Business Plus if your spending leans toward advertising, shipping, office supplies.

Read the full reviews

Frequently asked questions

Is the American Express® Blue Business Plus or the United℠ Quest better?
On typical business spending, the American Express® Blue Business Plus comes out ahead, by roughly $628 a year with every point valued at a flat 1 cent. But the United℠ Quest can be the better fit if your spending lines up with its stronger categories. Run both through the Cardocrat calculator to see your own numbers.
Can I have both the American Express® Blue Business Plus and the United℠ Quest?
In most cases yes, as long as you meet each issuer's approval rules (for example Chase's 5/24 rule). Many people hold complementary cards to cover more bonus categories, then pool or redeem the rewards together where the program allows.
Which has the better welcome bonus, the American Express® Blue Business Plus or the United℠ Quest?
As of June 2026, the American Express® Blue Business Plus offers 15,000 Membership Rewards® Points and the United℠ Quest offers up to 70,000 bonus miles + 500 pqp. Welcome offers change often, so confirm the current offer on each card's page before applying.