Key Aspects:
- Carnival Cruise Line’s reservations system will be down for maintenance beginning at 6 p.m. on Saturday, August 29, 2026.
- During the planned outage, guests and travel advisors cannot make new bookings or service existing reservations.
- The outage is expected to end by 12 p.m. on Sunday, August 30, but previous outages have lasted longer than planned.
Carnival Cruise Line has sent yet another notification to travel advisors that its reservations system and website tools will be temporarily dark for 18 hours, making new bookings, payments, reservation management, and other online services unavailable.
“In efforts to better support you and help you plan in advance, please be advised our reservation systems will be undergoing maintenance and will be temporarily unavailable,” the email notification explained.
This downtime will be from 6 p.m. on Saturday, August 29, 2026 through 12 p.m. on Sunday, August 30. Both times are in Eastern time, which coincides with Carnival Cruise Line’s headquarters in Miami, Florida.
It isn’t only travel advisors who will be affected by this outage, however. The email also notes that “guest-facing tools” such as online check-in, Fun Shops, and payments will not be available on the cruise line’s website. This means guests who manage their own bookings without a travel advisor will also not be able to access their reservations during the down time.
Similarly, the cruise line’s Contact Center will not be able to assist during the outage, as the reservations system will also be unavailable to them. Therefore, calling in to try and make a booking or payment will not be possible during that time.
Guests and anyone interested in researching a cruise will still be able to browse through Carnival’s website during the outage period, and information such as cruise ship deck plans and the cruise line’s frequently asked questions (FAQ) will remain available.
Why So Many Website Outages?
While it is necessary for data-intensive websites to have occasional downtime for a technical team to implement updates, improve security, and take other steps to improve efficiency and create a better user experience, Carnival Cruise Line has had several of these planned maintenance periods in recent months.
Typically, such outages would only be once or twice a year. Already in 2026, however, this is the third such outage. Cruise Hive reported the first 18-hour outage in May, and another was just on August 16 from 4 a.m. until 12 p.m.
Carnival has offered no explanation for the increased frequency of downtime for the reservations system, but does acknowledge it can be frustrating.
“We apologize for any inconvenience and appreciate your understanding,” the email notes.
Fortunately, these outages have been scheduled for periods when the website is typically less busy in order to minimize the inconvenience as much as possible.
Unfortunately, outages don’t always go smoothly. During the May 2026 planned outage, new glitches appeared in the reservations system that seemed to create ultra-low fares for new bookings. As soon as the erroneous fares were noticed, the too-good-to-be-true deals were cancelled and Carnival Cruise Line offered onboard credit as a gesture of appreciation for guests’ patience.
A similar situation occurred during planned website maintenance in December 2024, when the outage period extended far longer than expected and guests discovered failed logins, missing personal information, and website freezes hours after the outage was supposed to have finished.
The notification email for the upcoming August 29-30 update does note that the “targeted downtime completion” is 12 p.m. on Sunday. Because this is only a target and not a definitive endpoint, it is possible the outage may extend into Sunday afternoon or evening if updates and maintenance take longer than anticipated.
