The United Club℠ Infinite Card is the best card for Delta Air Lines — it earns 5x (6.5% return) and 5x on United Purchases.
Updated September 2026
Best Credit Card for Delta Air Lines
Compare the top credit cards to maximize your rewards every time you shop at Delta Air Lines.
Choosing the right card for Delta Air Lines can meaningfully boost your overall rewards return. The difference between a 1x flat card and the best card for this category can add up to hundreds of dollars in extra rewards per year on regular spending.
How CardCurator ranks this merchant
These rankings use current earn rates, annual fee drag, reward value, and merchant-category fit. They are based on live card data, not a fixed sponsored list.
Top Pick
United Club℠ Infinite Card
5x on United Purchases
Go broader than Delta Air Lines if you are still deciding by spending goal
This merchant page is best when you already care about Delta Air Lines. If you are still choosing the right card for all of your delta spend, use the category guide or the best-cards hub first.
More Good Options
AAdvantageCiti / AAdvantage Executive World Legend Mastercard4xpts/dollar6.0%return4x on Eligible American Airlines Purchases
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Southwest Rapid RewardsSouthwest Priority4xpts/dollar5.6%return4x on Southwest Airlines
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Credit One Bank Cash BackCredit One Bank Wander American Express Card5%pts/dollar5.0%return5x on Air Travel
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Portal-Only Travel Options
These rates only apply when you book through the issuer or partner portal, not when you pay Delta Air Lines directly.
American Express Membership RewardsThe Platinum Card from American Express5xpts/dollar10.0%return5x on Flights (Direct or Amex Travel) (travel portal only)
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Capital OneCapital One Venture X Rewards5xpts/dollar9.3%return5x on Flights (Capital One Travel) (travel portal only)
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Citi ThankYou PointsCiti Strata Elite6xpts/dollar9.0%return6x on Flights (Citi Travel) (travel portal only)
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U.S. Bank FlexPerksU.S. Bank Altitude Reserve Visa Infinite5xpts/dollar5.0%return5x on Flights (Travel Center) (travel portal only)
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Rewards Calculator
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Quick summary
A short version of the recommendation with the main numbers and tradeoffs.
At Delta Air Lines, United Club℠ Infinite Card is currently our top overall pick at 5x, which works out to about 6.5% back based on CardCurator's current point valuations. 5x on United Purchases. On $500/month of spend, the top card is worth about $390/year before signup bonuses or statement credits. Summary generated September 25, 2026. Source: https://cardcurator.ai/merchant/delta-air-lines
- United Club℠ Infinite Card: 5x and 6.5% effective return.
- At $500/month, that's about $390/year in rewards value before bonuses.
- No separate no-annual-fee fallback currently ranks near the top.
- Methodology uses live earn rates, annual fees, and current point valuations.
Common Questions
What is the best credit card to use at Delta Air Lines?
The United Club℠ Infinite Card is currently the top pick at Delta Air Lines, earning 5x points per dollar — an effective 6.5% return. 5x on United Purchases
How many points do I earn at Delta Air Lines per dollar spent?
Top cards earn between 4x and 5x at Delta Air Lines. Leading options include: United Club℠ Infinite Card (5x), Citi / AAdvantage Executive World Legend Mastercard (4x), Southwest Priority (4x).
Does Delta Air Lines count as delta for credit card rewards?
Delta Air Lines typically falls under the Delta category for credit card reward purposes. Cards with a delta spending bonus will earn an elevated rate here. Choosing the right card for Delta Air Lines can meaningfully boost your overall rewards return. The difference between a 1x flat card and the best card for this category can add up to hundreds of dollars in extra rewards per year on regular spending.
Is a premium card worth the annual fee for Delta Air Lines spending?
The United Club℠ Infinite Card ($695/yr) earns 5x at Delta Air Lines. If you spend $891/month or more there, the category rewards alone offset the annual fee — before counting travel credits and other perks that often exceed $500 in value on premium cards.
Which card earns the most if I spend $500 per month at Delta Air Lines?
United Club℠ Infinite Card: $390/yr, Citi / AAdvantage Executive World Legend Mastercard: $360/yr, Southwest Priority: $336/yr. The United Club℠ Infinite Card earns the most at $500/month.
Also earning in Delta
Need a situation-specific recommendation?
Merchant rankings are a good starting point, but the best card can change if you care more about international use, business spending, or lower-friction approval.