Vacation season arrives each summer. Families and friends pack suitcases and travel to beaches, mountains, or bustling cities. They seek rest, adventure, and time together.

People plan vacations by researching destinations and comparing options online. They book flights, hotels, and tours using online booking services. These platforms offer convenience, real-time availability, and secure reservations to ensure a smooth travel planning experience.

According to NerdWallet's 2026 summer travel survey, nearly half of Americans 45%, plan to take a vacation this summer that requires a flight and/or paid lodging, such as a hotel or vacation rental stay. That equals more than 120 million travelers.

For 2026, those summer travelers expect to spend an average of $3,940 per person on flights and lodging, bringing total expected spending to more than $475 billion. Many travelers are also looking for ways to reduce trip costs, with 89% planning to take some action to save money on their summer vacation.

As we do annually, we at WebSitePulse will closely monitor 10 of the most popular U.S. travel booking websites for their performance and uptime during the busiest booking period from May 20 to June 30, 2026 and report on their efficiency.

The WebSitePulse Performance Reports will measure the websites' uptime and response time as the most critical metrics for any web-based operation's availability and reliability, which are crucial for the End Users' overall online experience. Web transactions will be measured every 15 minutes simultaneously from 4 different monitoring locations.

In-depth analytical information is also collected and stored in the WebSitePulse system for future reference.