Costco July 2024 Coupon Booking Flights. Book united airlines to hawaii, mexico or the caribbean and receive a $100 costco shop card per person.** united airfare must be booked with a vacation. This months costco coupons are valid from june 19th through july 21st.
Set to run from june 19 through july 21, the monthly sale ad is. Not every offer on costco is worth booking.