Walking between the terminals at DFW Airport takes about 10 minutes. It will take you a little longer depending on how fast and how busy the airport is. It is a good idea to allow yourself enough time to reach your next gate if you are connecting flights. For those who don't want to walk, the airport offers a free shuttle service between terminals. Dallas/Fort Worth International Airport is the busiest airport in the world. It handles over 64 million passengers annually. It can be difficult to navigate seven terminals that span over 17,000 acres. The airport offers a shuttle service, which runs 24 hours a day, that makes it easy to move from one terminal to the next. DFW offers many options for getting to your next gate, no matter what mode of transportation you use. The airport is well-equipped to handle the needs of travelers, with so many people passing through every year. DFW offers everything you need, whether you are looking for an easy way to travel between terminals or assistance with your luggage.