Bilt Blue vs Delta SkyMiles® Blue

Bilt Blue
VS
Delta SkyMiles® Blue
The short answer: The Bilt Blue delivers a bit more value for most spenders, but choose the Delta SkyMiles® Blue if you spend more on dining.

Side-by-side comparison

Bilt BlueDelta SkyMiles® Blue
Annual feeNo annual feeNo annual fee
Welcome offer$100 in Bilt Cash on account opening10,000 Bonus Miles
Dining1x2x
Groceries1x1x
Gas1x1x
Travel2x1x
Streaming1x1x
Everything else1x1x
Est. yearly rewards*$310$322
Points typeTransfers to airlines & hotelsLocked to Delta SkyMiles
NetworkMastercardAmex

*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 Bilt Blue earns about $310 a year in rewards and the Delta SkyMiles® Blue about $322, valuing every point at a flat 1 cent. The Bilt Blue has no annual fee, so its rewards are all profit. The Delta SkyMiles® Blue has no annual fee, so its rewards are all profit. Counting rewards and any credits, the Bilt Blue delivers more total value, about $38 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 Bilt Blue earns points you can move to travel partners for outsized value, while the Delta SkyMiles® Blue stays locked to a single airline or hotel program. Favor the Bilt Blue if you will use travel transfers, the Delta SkyMiles® Blue if you want simplicity. On the sign-up bonus, the two are currently comparable in size. A welcome bonus is a one-time event, so weigh it apart from the ongoing rewards.

Pick the Bilt Blue if your spending leans toward travel. Pick the Delta SkyMiles® Blue if your spending leans toward dining.

Read the full reviews

Frequently asked questions

Is the Bilt Blue or the Delta SkyMiles® Blue better?
On typical household spending, the Bilt Blue comes out ahead, by roughly $38 a year with every point valued at a flat 1 cent. But the Delta SkyMiles® Blue 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 Bilt Blue and the Delta SkyMiles® Blue?
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 Bilt Blue or the Delta SkyMiles® Blue?
As of June 2026, the Bilt Blue offers $100 in Bilt Cash on account opening and the Delta SkyMiles® Blue offers 10,000 Bonus Miles. Welcome offers change often, so confirm the current offer on each card's page before applying.