MCC 3171 covers CANADIAN AIRLINES INTERNATIONAL 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.
Air Canada and WestJet use MCC 3171. Purchases for flights, upgrades, and travel packages get coded here.
Cardholders often think any travel booking goes into this code, but only international airfare from major airlines qualifies.
MCC 3171 stands for CANADIAN AIRLINES INTERNATIONAL. It is a four-digit Merchant Category Code used by payment networks to classify businesses in the airline category.
Merchants classified under MCC 3171 (CANADIAN AIRLINES INTERNATIONAL) operate in the airline sector. Card networks assign this code during merchant onboarding based on the primary business activity.
MCC 3171 (CANADIAN AIRLINES INTERNATIONAL) 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 3171 (CANADIAN AIRLINES INTERNATIONAL). 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 3171 is assigned to businesses providing canadian airlines international services. While this is a less common merchant category, any purchase that posts with code 3171 will be classified as 'CANADIAN AIRLINES INTERNATIONAL' by your card issuer, which determines whether airline category bonuses apply to that transaction.
MCC 3171 (CANADIAN AIRLINES INTERNATIONAL) and MCC 3000 (UNITED AIRLINES) are both in the airline category but cover distinct merchant types. MCC 3171 is used for canadian airlines international 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.