Bilt Blue vs Citi® / AAdvantage® MileUp®
Side-by-side comparison
| Bilt Blue | Citi® / AAdvantage® MileUp® | |
|---|---|---|
| Annual fee | No annual fee | No annual fee |
| Welcome offer | $100 in Bilt Cash on account opening | 15,000 American Airlines AAdvantage® miles |
| Dining | 1x | 1x |
| Groceries | 1x | 2x |
| Gas | 1x | 1x |
| Travel | 2x | 1x |
| Streaming | 1x | 1x |
| Everything else | 1x | 1x |
| Est. yearly rewards* | $310 | $352 |
| Points type | Transfers to airlines & hotels | Locked to American Airlines AAdvantage |
| Network | Mastercard | Mastercard |
*Estimated yearly rewards on typical household spending, every point valued at a flat 1 cent. Verified July 2026. See your own numbers in the calculator.
Welcome bonus and value over time
| Over time | Bilt Blue | Citi® / AAdvantage® MileUp® |
|---|---|---|
| Welcome bonus | $100 in Bilt Cash on account opening | 15,000 American Airlines AAdvantage® miles |
| To earn it | No minimum spend | $500 in 3 months |
| Est. first-year value* | $510 | $502 |
| Est. ongoing value / yr* | $410 | $352 |
The Bilt Blue wins on both fronts: it comes out ahead in year one on the welcome offer and stays ahead every year after. Short term or long, it is the stronger pick on the numbers.
*First-year value counts the welcome bonus, estimated rewards, and annual credits, minus the annual fee; ongoing value is a typical year after. Every point at a flat 1 cent.
Perks, credits, and redemptions
| Perks | Bilt Blue | Citi® / AAdvantage® MileUp® |
|---|---|---|
| Lounge access | None | None |
| Annual credits | ~$100/yr (1 credits) | None |
| Points & redemptions | Transferable to airline & hotel partners | Locked to a single program |
On perks and redemptions, the Bilt Blue carries the heavier credit stack (about $100 a year); the Bilt Blue earns transferable points with a higher redemption ceiling, while the other is capped nearer a flat cent. Weigh those against the fee, since credits and lounge access only count if you will actually use them.
Transfer partners and point value
Only the Bilt Blue earns transferable points. Its Bilt Rewards move to Alaska / Atmos, Air Canada, World of Hyatt, American Airlines, and Turkish, where a point can be worth several cents on a premium-cabin redemption, far above its cash value. The Citi® / AAdvantage® MileUp® stays locked to a single airline or hotel program, so its ceiling is nearer a penny per point no matter how you redeem.
Both free, but the Bilt Blue rewards rent with flexible points while the MileUp earns American miles on groceries.
The Blue’s edge is rent, an expense almost nothing rewards, plus transfers to strong partners. The MileUp is a no-fee way to bank AA miles on groceries and American purchases. Flexible rent points vs American miles.
Pros and cons
- Transferable points on rent, plus 2x travel
- Transfers to strong airline and hotel partners
- No annual fee
- A rare way to reward rent
- 1x outside rent and travel
- Best value needs Bilt’s ecosystem
- Monthly rent-activity requirements
- 2x at grocery stores and on American
- An easy, free way to earn AA miles
- No annual fee
- Zero commitment
- Miles locked to American
- Low earning outside its categories
- Not a premium card
Where each one wins
| Category | Winner | Why |
|---|---|---|
| Rent | Bilt Blue | Points on rent the MileUp can’t earn. |
| Groceries | AA MileUp | 2x AA miles vs the Blue’s 1x. |
| Flexibility | Bilt Blue | Transferable points vs American-only miles. |
| Annual fee | Tie | Both $0. |
| Best for | Depends | Renters vs casual AA flyers. |
The verdict
If you rent, the Bilt Blue is the more valuable free card, rewarding rent with transferable points that beat a couple of AA miles on groceries.
If you specifically fly American and want to bank miles on groceries, the MileUp is a fine free add. Both cost nothing, so a renting AA flyer could hold each, but for most renters the Blue’s rent earning is the bigger prize.