27 days in United States Itinerary

Nicknamed the "Emerald City" because of its abundant evergreen trees, Seattle is the cultural and business center of the Pacific Northwest, as well as a popular holiday destination.

Keep things going the next day: take in the waterfront at Hiram M. Chittenden Locks, take in panoramic vistas at Space Needle, then explore the world behind art at Chihuly Garden and Glass, and finally wander the streets of Pike Place Market.

To see where to stay, ratings, photos, and other tourist information, refer to the Seattle day trip site.

Chennai, India to Seattle is an approximately 23.5-hour flight. The time zone changes from India Standard Time (IST) to Pacific Standard Time (PST), which is usually a -13.5 hour difference. Expect little chillier temperatures when traveling from Chennai in August; daily highs in Seattle reach 31°C and lows reach 19°C. Finish your sightseeing early on the 1st (Sun) so you can fly to Yellowstone National Park.

An exceptionally diverse landscape and varied wildlife have made Yellowstone National Park one of America's most popular parks.

Step out of Yellowstone National Park with an excursion to Grand Teton in Grand Teton National Park--about 1h 25 min away. And it doesn't end there: explore the stunning scenery at Grand Canyon of the Yellowstone, take in the dramatic scenery at Gibbon Falls, witness a stunning natural landmark at Castle Geyser, and take your sightseeing to a higher altitude at Mount Washburn.

To see where to stay, ratings, more things to do, and tourist information, read Yellowstone National Park route site.

Traveling by flight from Seattle to Yellowstone National Park takes 3.5 hours. Alternatively, you can drive; or do a combination of train, bus, and car. The time zone difference when traveling from Seattle to Yellowstone National Park is 1 hour. When traveling from Seattle in September, plan for little chillier days in Yellowstone National Park, with highs around 18°C, while nights are cooler with lows around 0°C. Finish your sightseeing early on the 4th (Wed) so you can fly to San Francisco.

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

San Francisco is known for sightseeing, nature, and parks. Your trip includes some of its best attractions: contemplate the long history of Golden Gate Bridge, get the lay of the land with Walking tours, walk around Golden Gate Park, and take a leisurely stroll along Fisherman's Wharf.

To find reviews, traveler tips, and more tourist information, refer to the San Francisco trip planner.

Traveling by flight from Yellowstone National Park to San Francisco takes 4 hours. Alternatively, you can drive; or do a combination of car, bus, train, and subway. Traveling from Yellowstone National Park to San Francisco, you'll gain 1 hour due to the time zone difference. Traveling from Yellowstone National Park in September, you will find days in San Francisco are somewhat warmer (28°C), and nights are much warmer (17°C). Finish your sightseeing early on the 7th (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.

Step out of Las Vegas to go to Boulder City and see Hoover Dam, which is approximately 50 minutes away. And it doesn't end there: ponder the design of Fountains of Bellagio, immerse yourself in nature at Red Rock Canyon National Conservation Area, take in panoramic vistas at High Roller, and try your luck at Paris Las Vegas.

For reviews, maps, more things to do, and tourist information, go to the Las Vegas travel itinerary planner.

Fly from San Francisco to Las Vegas in 3 hours. Alternatively, you can drive; or do a combination of subway, train, and bus. Traveling from San Francisco in September, expect Las Vegas to be a bit warmer, temps between 39°C and 25°C. Wrap up your sightseeing on the 10th (Tue) to allow time to travel to Grand Canyon National Park.

The size, shape, and color of Grand Canyon National Park combine to leave an impression on visitors as deep as the canyon itself.

Grand Canyon National Park is known for nature, sightseeing, and trails. Your trip includes some of its best attractions: take in breathtaking views at Grand Canyon South Rim, trek along North Kaibab Trail, tour the pleasant surroundings at Rim Trail, and get great views at Powell Point.

Before you visit Grand Canyon National Park, use our trip planner to discover what you can do and see there.

Use the Route module to find suitable travel options from Las Vegas to Grand Canyon National Park. Due to the time zone difference, you'll lose 1 hour traveling from Las Vegas to Grand Canyon National Park. Traveling from Las Vegas in September, expect nights in Grand Canyon National Park to be cooler, around 7°C, while days are little chillier, around 28°C. Finish your sightseeing early on the 13th (Fri) to allow enough time to travel 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, get a new perspective on nature at Field Museum, and take in panoramic vistas at Skydeck Chicago - Willis Tower.

To find traveler tips, reviews, other places to visit, and tourist information, read Chicago day trip tool.

You can do a combination of bus and flight from Grand Canyon National Park to Chicago in 10 hours. Alternatively, you can drive; or do a combination of shuttle and bus. The time zone difference moving from Mountain Standard Time to Central Standard Time is 1 hour. Traveling from Grand Canyon National Park in September, you can expect nighttime temperatures to be somewhat warmer in Chicago, with lows of 19°C. Cap off your sightseeing on the 16th (Mon) early enough to catch the flight to Washington DC.

The capital of the United States, the District of Columbia contains the lion's share of the country's most treasured monuments, memorials, and public museums.

Washington DC is known for sightseeing, museums, and historic sites. Your trip includes some of its best attractions: examine the collection at National Air and Space Museum, appreciate the history behind Vietnam Veterans Memorial, take in the spiritual surroundings of Washington National Cathedral, and get a sense of history and politics at Library of Congress.

To find traveler tips, other places to visit, where to stay, and more tourist information, read our Washington DC trip tool.

Traveling by flight from Chicago to Washington DC takes 3.5 hours. Alternatively, you can drive; or take a train. You'll lose 1 hour traveling from Chicago to Washington DC due to the time zone difference. In September, daily temperatures in Washington DC can reach 32°C, while at night they dip to 21°C. Finish your sightseeing early on the 19th (Thu) to allow enough time to fly to New York City.

Writer Pearl Buck once called New York City “a place apart,” and this giant urban center remains unlike any other in the world.

New York City is known for sightseeing, museums, and nightlife. Your trip includes some of its best attractions: take in the pleasant sights at Central Park, get a new perspective on nature at American Museum of Natural History, admire the landmark architecture of Grand Central Terminal, and stroll through The High Line.

To find maps, reviews, photos, and other tourist information, refer to the New York City vacation planner.

Traveling by flight from Washington DC to New York City takes 3 hours. Alternatively, you can take a train; or drive. September in New York City sees daily highs of 31°C and lows of 22°C at night. Finish your sightseeing early on the 24th (Tue) so you can fly back home.