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United Airlines is classified under MCC 4511 (Airlines, Air Carriers ( not listed elsewhere)). The best card for United Airlines purchases is the Sapphire Reserve ($795/yr annual fee), earning 10x on airlines, air carriers ( not listed elsewhere) — an effective return of 20.50%.
MCC 4511 for airlines like United is crucial for credit card rewards because it allows you to earn maximum points or miles when traveling, and many premium cards offer elevated earning rates for this category.
Pro Tip
To maximize your rewards at United Airlines, consider using your airline credit towards booking fees or add-ons like checked baggage, as this can often save you money compared to paying with other cards.
When you pay at United Airlines at their locations, your card issuer sees MCC 4511 in the transaction data. This code tells your bank that the purchase was made at a airlines, air carriers ( not listed elsewhere) merchant. Bonus reward rates on your card apply based on this MCC — not the merchant name itself.
If your card earns bonus points on "airlines, air carriers ( not listed elsewhere)" purchases, United Airlines transactions will qualify — even if your card terms only mention a category name and not United Airlines specifically. The key is that the MCC matches your card's bonus category definition.
You can verify the MCC on any United Airlines transaction by checking your card's mobile app or statement. Some issuers display the merchant category alongside the transaction details. For the most accurate information, contact your card issuer's customer service and ask whether MCC 4511 qualifies for bonus rewards.
About MCC 4511: Airlines, Air Carriers ( not listed elsewhere)
Merchant Category Code 4511 is assigned by card networks (Visa, Mastercard, Amex, Discover) to classify businesses in the Airlines, Air Carriers ( not listed elsewhere) industry. Issuers use MCCs to determine which transactions qualify for bonus reward rates. When a merchant is assigned MCC 4511, all qualifying card programs that include airlines, air carriers ( not listed elsewhere) as a bonus category will apply the elevated earn rate.
The Transportation industry group encompasses several related MCCs. Not all merchants in a similar business will share the same MCC — for example, a grocery store inside a warehouse club may code as wholesale ({"5300"}) rather than grocery ({"5411"}). Always verify with your issuer if you're unsure whether a specific merchant qualifies for bonus rewards on your card.
Other Airlines, Air Carriers ( not listed elsewhere) Merchants (MCC 4511)
Spending $200/month at United Airlines with the Sapphire Reserve (10x on airlines, air carriers ( not listed elsewhere)) earns approximately $240/year in rewards. A basic 1% card earns $24 on the same spending. After the $795 annual fee, that is $-555 more per year.
Prefer no annual fee? The Double Cash earns 5x at United Airlines merchants, earning $120/year with no annual fee.
Frequently Asked Questions
What MCC code does United Airlines use?
United Airlines uses MCC 4511 (Airlines, Air Carriers ( not listed elsewhere)). This code is assigned by card networks and determines which bonus reward categories apply when you pay at United Airlines.
Which credit card earns the most rewards at United Airlines?
The Sapphire Reserve earns 10x on airlines, air carriers ( not listed elsewhere) purchases (MCC 4511), making it the highest-earning option at United Airlines among the cards we track.
Does my card earn bonus rewards at United Airlines?
It depends on your card's bonus categories. If your card earns bonus rewards on airlines, air carriers ( not listed elsewhere) purchases, United Airlines transactions (MCC 4511) will typically qualify. Check your card's terms or app, or call your issuer to confirm.
Is United Airlines classified as airlines, air carriers ( not listed elsewhere) for credit card purposes?
Yes. United Airlines is classified under MCC 4511, which falls in the Airlines, Air Carriers ( not listed elsewhere) category. This means cards with airlines, air carriers ( not listed elsewhere) bonus categories will apply the elevated earn rate at United Airlines.
What is MCC 4511 and what merchants use it?
MCC 4511 stands for Airlines, Air Carriers ( not listed elsewhere). It is assigned to businesses that primarily operate in airline tickets and fees. Besides United Airlines, other merchants in the same MCC include similar businesses in the transportation industry group.
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Full disclosure
MCC data based on card network classification standards.
Rankings verified monthly from official card issuer terms.
Last verified: March 16, 2026.
Full methodology: www.pointspick.com/methodology.
