Contact Costco USA: Phone Number & Customer Service

Kayla Jul 09, 2026

If you're a Costco member or simply interested in their products and services, you might find yourself needing to contact Costco by phone. With numerous departments and services, Costco offers various phone numbers to cater to your specific needs. Let's guide you through the process of contacting Costco by phone in the USA.

the coup page for costco next, the members only portal most shoppers miss
the coup page for costco next, the members only portal most shoppers miss

Before we dive into the different phone numbers, it's essential to note that Costco's customer service operates during specific hours. Typically, their phone lines are open from 8:00 AM to 5:00 PM (Pacific Time), Monday through Friday. However, some departments may have extended hours or different operating schedules, so it's always a good idea to check their official website for the most up-to-date information.

an empty parking lot in front of a business called costco us co's go business
an empty parking lot in front of a business called costco us co's go business

Costco Customer Service

For general inquiries, assistance with your membership, or questions about products and services, you can reach out to Costco's customer service department.

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Costco Return Policy Secrets: Here's Exactly What You Can and Can't Do

Phone number: 1-800-774-2678

Membership Inquiries

Yuck! Costco Offering A Refund On This Product Due To It's 'Weird Taste'
Yuck! Costco Offering A Refund On This Product Due To It's 'Weird Taste'

If you have questions about your Costco membership, such as upgrading, renewing, or canceling, you can contact their membership services team.

Phone number: 1-800-774-2678 (Select option 1 for Membership Services)

Product Returns and Refunds

an advertisement for a grocery store with prices on the front and back side of it
an advertisement for a grocery store with prices on the front and back side of it

For inquiries regarding product returns, refunds, or exchanges, you can contact Costco's returns department.

Phone number: 1-800-774-2678 (Select option 2 for Returns)

Costco Travel

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What Is Costco Next? Here’s How It Works - The Krazy Coupon Lady

If you need assistance with booking travel arrangements, such as vacations, cruises, or car rentals, through Costco Travel, you can reach out to their dedicated travel team.

Phone number: 1-866-979-2727

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Costco Products Your Paying Too Much For
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7 Sneaky Costco Hacks to Save Money - Genymoney.ca
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Reminder the current Costco Coupon Book Deals end Sunday, June 9th. #costco #costcodeals #costcofinds #costcohaul #costcobuys #costcomusthaves #costcocoupons #blogaboutitall Costco Code, Costco Warehouse Shopping, Costco Haul, Costco Sale, Costco Family, Costco Videos, Costco Sales, Costco Isopropyl Alcohol, Costco Sample
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a costco store is shown with the sign for sale
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Travel Packages

For inquiries about specific travel packages or to make a booking, you can contact their travel packages department.

Phone number: 1-866-979-2727 (Select option 1 for Travel Packages)

Cruises

If you have questions about cruises or would like to book one, you can contact their cruises department.

Phone number: 1-866-979-2727 (Select option 2 for Cruises)

Costco Business Services

For businesses interested in Costco's business services, such as delivery, catering, or business accounts, you can contact their business services team.

Phone number: 1-800-774-2678 (Select option 3 for Business Services)

Business Delivery

If you're interested in Costco's delivery services for businesses, you can contact their business delivery department.

Phone number: 1-800-774-2678 (Select option 3 for Business Services, then follow the prompts for Delivery)

Catering Services

For inquiries about Costco's catering services, you can contact their catering department.

Phone number: 1-800-774-2678 (Select option 3 for Business Services, then follow the prompts for Catering)

When contacting Costco by phone, be prepared to provide your membership number or other relevant information to help the customer service representative assist you more efficiently. If you're calling about a specific product or service, having the item number or relevant details on hand can also streamline the process. Happy shopping, and we hope this guide helps you reach the right department for your needs!