17 days in United States Itinerary

Steeped in cultural and historical heritage, Philadelphia is known as the birthplace of U.S. democracy, as it was once the meeting place for the country's Founding Fathers.

Take a break from Philadelphia with a short trip to Longwood Gardens in Kennett Square, about 52 minutes away. There's much more to do: explore the world behind art at Barnes Foundation, stroll around Franklin Square, browse the eclectic array of goods at Reading Terminal Market, and take in the architecture and design of University of Pennsylvania.

For maps, where to stay, photos, and more tourist information, you can read our Philadelphia travel route site.

Lisbon, Portugal to Philadelphia is an approximately 11.5-hour flight. The time zone difference when traveling from Lisbon to Philadelphia is minus 5 hours. In May, daily temperatures in Philadelphia can reach 27°C, while at night they dip to 15°C. Wrap up your sightseeing on the 3rd (Wed) to allow time to fly to Chicago.

A huge and vibrant city, Chicago is home to top-notch theaters, shops, museums, galleries, and restaurants.

Chicago is known for sightseeing, museums, and nightlife. Your trip includes some of its best attractions: explore the world behind art at The Art Institute of Chicago, get curious at Museum of Science and Industry, don't miss a visit to Skydeck Chicago - Willis Tower, and stroll around Millennium Park.

To find other places to visit, where to stay, ratings, and more tourist information, read Chicago trip planning tool.

Getting from Philadelphia to Chicago by flight takes about 3.5 hours. Other options: drive; or take a bus. You'll gain 1 hour traveling from Philadelphia to Chicago due to the time zone difference. May in Chicago sees daily highs of 25°C and lows of 13°C at night. Finish up your sightseeing early on the 6th (Sat) so you can catch the flight to San Francisco.

San Francisco is a top holiday destination featuring scenic beauty and great ethnic and cultural diversity.

Start off your visit on the 7th (Sun): see the interesting displays at de Young Museum, then walk around Golden Gate Park, then steep yourself in history at Golden Gate Bridge, and finally don't miss a visit to Lombard Street. Here are some ideas for day two: pause for some serene contemplation at Grace Cathedral, step aboard SS Jeremiah O'Brien, then head off the coast to Alcatraz Island, and finally take a leisurely stroll along Fisherman's Wharf.

To see where to stay, photos, and tourist information, read our San Francisco travel planner.

Traveling by flight from Chicago to San Francisco takes 6 hours. Alternatively, you can drive; or do a combination of train and subway. The time zone changes from Central Standard Time to Pacific Standard Time, which is usually a -2 hour difference. In May in San Francisco, expect temperatures between 24°C during the day and 13°C at night. Cap off your sightseeing on the 8th (Mon) early enough to travel to Yosemite National Park.

Massive granite mountains, towering waterfalls, groves of Giant Sequoia trees, and wilderness as far as the eye can see distinguish the landscape of Yosemite National Park.

On the 9th (Tue), walk around Mariposa Grove, then explore the activities along Mirror Lake/Meadow Trail, then take in the dramatic scenery at Yosemite Falls, and finally get great views at Valley View. On the 10th (Wed), you'll have a packed day of sightseeing: take in the dramatic natural features at Glacier Point, explore the striking landscape at Sentinel Dome, take in the dramatic scenery at Vernal Fall, identify plant and animal life at Nature Center at Happy Isles, then get great views at Yosemite, Tunnel View, and finally explore the wealth of natural beauty at Bridalveil Fall.

Quickly create a custom-made itinerary for Yosemite National Park using our trip planner.

The Route module can help you plan travel from San Francisco to Yosemite National Park. Traveling from San Francisco in May, you can expect nighttime temperatures to be a bit cooler in Yosemite National Park, with lows of 1°C. On the 11th (Thu), you're off to Los Angeles.

Surrounded by mountain ranges, forests, valleys, beaches, and deserts, the metropolitan area of Los Angeles is home to over 17 million people.

Kick off your visit on the 12th (Fri): get in on the family fun at Disneyland Park. Get ready for a full day of sightseeing on the 13th (Sat): see the sky in a new way at Griffith Observatory, get to know the fascinating history of Hollywood Walk of Fame, then examine the collection at The Getty Center, and finally get to know the fascinating history of Santa Monica Pier.

To see more things to do, ratings, photos, and other tourist information, read Los Angeles trip itinerary builder site.

Use the Route module to find suitable travel options from Yosemite National Park to Los Angeles. Traveling from Yosemite National Park in May, you will find days in Los Angeles are a bit warmer (28°C), and nights are much hotter (17°C). Finish your sightseeing early on the 13th (Sat) to allow enough time to fly to Las Vegas.

Nicknamed the "Entertainment Capital of the World," Las Vegas sits in the middle of a desert in the southern section of Nevada.

For ratings, other places to visit, reviews, and more tourist information, use the Las Vegas trip itinerary builder.

You can fly from Los Angeles to Las Vegas in 3 hours. Other options are to drive; or take a bus. Traveling from Los Angeles in May, you will find days in Las Vegas are somewhat warmer (36°C), and nights are about the same (20°C). On the 14th (Sun), you'll travel to Atlanta.

Georgia’s largest city and capital, Atlanta is a thriving metropolis anchored by its southern roots.

On the 14th (Sun), enjoy breathtaking views from Jackson Street Bridge, then observe the fascinating underwater world at Georgia Aquarium, then contemplate the long history of Centennial Olympic Park, and finally see the interesting displays at World of Coca-Cola.

Plan my trip to Atlanta with suggested itineraries provided by Klarna Trips.

Fly from Las Vegas to Atlanta in 5.5 hours. Alternatively, you can drive; or take a bus. The time zone changes from Pacific Standard Time (PST) to Eastern Standard Time (EST), which is usually a 3 hour difference. When traveling from Las Vegas in May, plan for little chillier days and about the same nights in Atlanta: temperatures range from 31°C by day to 19°C at night. Wrap up your sightseeing by early afternoon on the 15th (Mon) to allow time for the car ride to Covington.

Covington is a city and the county seat of Newton County, Georgia, located 35 miles east of Atlanta. Start off your visit on the 15th (Mon): examine the collection at Pop-Up TV and Film Museum and then get thoroughly spooked out with a ghost and vampire tour.

To find other places to visit, traveler tips, photos, and tourist information, read our Covington trip planner.

Getting from Atlanta to Covington by car takes about an hour. In May in Covington, expect temperatures between 30°C during the day and 17°C at night. Cap off your sightseeing on the 16th (Tue) early enough to travel back home.