MCC 3631 covers HOTELS/MOTELS/INNS/RESORTS merchants, classified under airline. To maximize rewards at these businesses, look for credit cards with broad spending bonuses or airline category multipliers. MCC Lookup Tool to find which cards earn bonus rewards here.
Marriott, Hilton, and Hyatt use MCC 3631. This category includes hotel stays, room service, and resort activities.
People often think spa services and golf fees are in a separate category, but they're coded under hotels too.
MCC 3631 stands for Hotels/Motels/Inns/Resorts. It is a four-digit Merchant Category Code used by payment networks to classify businesses in the airline category.
Merchants classified under MCC 3631 (Hotels/Motels/Inns/Resorts) operate in the airline sector. Card networks assign this code during merchant onboarding based on the primary business activity.
MCC 3631 (Hotels/Motels/Inns/Resorts) is not currently a dedicated bonus category for most major credit cards. For airline spending at these merchants, a flat-rate rewards card (1.5–2% on all purchases) is typically your most reliable option. Use our MCC Lookup Tool to find the best card for any specific merchant.
Currently, no credit cards in our database have a dedicated bonus category for MCC 3631 (Hotels/Motels/Inns/Resorts). Most purchases posting with this code will earn base rewards (typically 1–1.5x on everyday cards). A flat-rate cashback card is the most predictable choice for airline spending.
MCC 3631 is assigned to businesses providing hotels/motels/inns/resorts services. While this is a less common merchant category, any purchase that posts with code 3631 will be classified as 'Hotels/Motels/Inns/Resorts' by your card issuer, which determines whether airline category bonuses apply to that transaction.
MCC 3631 (Hotels/Motels/Inns/Resorts) and MCC 3000 (UNITED AIRLINES) are both in the airline category but cover distinct merchant types. MCC 3631 is used for hotels/motels/inns/resorts businesses, while MCC 3000 is assigned to united airlines merchants. Both may qualify for the same bonus category on your card — check your card's terms or use our MCC Lookup Tool to confirm.