Offer DetailsMakeMyTrip comes up with an International Hotel Offer: A user can get a flat 12% instant discount on international hotel booking via American Express credit card. A user must use promo code AMEXMMT in the coupon field to get this offer. No minimum booking amount is applicable to this offer. The international hotels offer is not valid on select hotels. A user is entitled to a maximum of 1 booking per card per month under the International Flights Offer. Offer is valid for the limited period. book your hotel now.