37 days in United States Itinerary

In many ways much more Asian than American, Honolulu is Hawaii's largest city and its center of government, transportation, commerce, and tourism.

Your inner history buff will appreciate USS Arizona Memorial and Iolani Palace. Escape the urban bustle at Kailua Beach Park and Ehukai Beach Park. Explore the numerous day-trip ideas around Honolulu: Haleiwa (Sunset Beach Park & Bob Marlin Charters). There's lots more to do: kick back and relax at Waikiki Beach, examine the collection at USS Bowfin Submarine Museum & Park, stroll around Kapiolani Regional Park, and stroll through Diamond Head State Monument.

To find traveler tips, where to stay, other places to visit, and more tourist information, refer to the Honolulu trip planner.

Muri, Cook Islands to Honolulu is an approximately 18.5-hour combination of car and flight. Plan for slightly colder nights when traveling from Muri in December since evenings lows in Honolulu dip to 24°C. Finish your sightseeing early on the 20th (Wed) so you can fly to Kailua-Kona.

Thanks to its favorable location near a mountain range blocking the northeasterly trade winds, Kailua-Kona gets little rainfall, allowing adventure seekers and nature lovers a chance to enjoy over 300 days of sunshine each year.

Do some cultural sightseeing at Pu'uhonua O Honaunau National Historical Park and Puukohola National Historic Park. Get in touch with nature at Swim with Dolphins and Kahaluu Beach. Explore Kailua-Kona's surroundings by going to Hapuna Beach State Recreation Area (in Puako), Waikoloa Beach Resort (in Waikoloa) and Papakōlea Green Sand Beach (in Naalehu). Next up on the itinerary: look for all kinds of wild species at Kona Cloud Forest Sanctuary, kick back and relax at Mauna Kea Beach, and contemplate in the serene atmosphere at Mokuaikaua Church.

To see ratings, photos, where to stay, and other tourist information, refer to the Kailua-Kona trip planner.

You can fly from Honolulu to Kailua-Kona in 2.5 hours. In December, daily temperatures in Kailua-Kona can reach 32°C, while at night they dip to 24°C. On the 24th (Sun), wrap the sightseeing up by early afternoon so you can fly to San Francisco.

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

Shop till you drop at Union Square and Ferry Building Marketplace. Alcatraz Island and Golden Gate Bridge will appeal to history buffs. And it doesn't end there: stop by Fisherman's Wharf, buy something for everyone on your list at Ghirardelli Square, get to know the fascinating history of Filbert Street Stairs, and take a stroll through Chinatown.

To see ratings, traveler tips, where to stay, and tourist information, go to the San Francisco trip itinerary maker site.

You can fly from Kailua-Kona to San Francisco in 7 hours. The time zone changes from Hawaii-Aleutian Standard Time to Pacific Standard Time, which is usually a 2 hour difference. Expect cooler temperatures when traveling from Kailua-Kona in December; daily highs in San Francisco reach 17°C and lows reach 8°C. Finish your sightseeing early on the 27th (Wed) so you can 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.

Visit Pioneer Yosemite History Center and Yosemite Cemetery for their historical value. Take a break from the city and head to Badger Pass Ski Area and Cathedral Beach Picnic Area. And it doesn't end there: look for all kinds of wild species at McGurk Meadow, explore the striking landscape of Swinging Bridge Picnic Area Yosemite National Park CA, admire the sheer force of Vernal Fall, and grab your bike and head to Yosemite Valley Biking.

Klarna Trips's itinerary builder makes planning a Yosemite National Park trip simple and quick.

Explore your travel options from San Francisco to Yosemite National Park with the Route module. Traveling from San Francisco in December, expect nights in Yosemite National Park to be much colder, around -11°C, while days are slightly colder, around 9°C. Finish your sightseeing early on the 1st (Mon) so you can travel 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.

Start off your visit on the 2nd (Tue): see the interesting displays at The Mob Museum, shop like a local with The Strip, and then ponder the design of Fountains of Bellagio. On your second day here, take in breathtaking views at Red Rock Canyon National Conservation Area, then buy something for everyone on your list at The Grand Canal Shoppes at The Venetian Resort, and then examine the collection at The Neon Museum.

To see more things to do, photos, reviews, and more tourist information, you can read our Las Vegas trip builder website.

Explore your travel options from Yosemite National Park to Las Vegas with the Route module. When traveling from Yosemite National Park in January, plan for a bit warmer days in Las Vegas, with highs around 17°C, while nights are much hotter with lows around 5°C. Finish your sightseeing early on the 3rd (Wed) so you can 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.

Visiting Grand Canyon Village and Grand Canyon South Rim will get you outdoors. There's much more to do: trek along Rim Trail, stroll through South Kaibab Trail, explore the stunning scenery at Yavapai Point, and surround yourself with nature on Grand Canyon Mule Tours by Xanterra.

For where to stay, ratings, and more tourist information, you can read our Grand Canyon National Park trip planner.

The Route module can help you plan travel from Las Vegas to Grand Canyon National Park. The time zone difference moving from Pacific Standard Time to Mountain Standard Time is 1 hour. While traveling from Las Vegas, expect slightly colder days and much colder nights in Grand Canyon National Park, ranging from highs of 7°C to lows of -11°C. Wrap up your sightseeing on the 7th (Sun) early enough to travel 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.

9/11 Memorial and St. Patrick's Cathedral will appeal to history buffs. Your cultural itinerary includes sights like The Metropolitan Museum of Art and Statue of Liberty National Monument. There's lots more to do: go for a walk through Central Park, learn more about the world around you at American Museum of Natural History, admire the landmark architecture of Rockefeller Center, and wander the streets of Fifth Avenue.

For traveler tips, where to stay, and other tourist information, you can read our New York City vacation planner.

Do a combination of bus and flight from Grand Canyon National Park to New York City in 11.5 hours. Alternatively, you can do a combination of shuttle and bus. The time zone difference when traveling from Grand Canyon National Park to New York City is 2 hours. Traveling from Grand Canyon National Park in January, expect somewhat warmer with lows of -5°C in New York City. Finish up your sightseeing early on the 12th (Fri) so you can 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.

Kick off your visit on the 13th (Sat): get engrossed in the history at United States Holocaust Memorial Museum, then see the interesting displays at National Air and Space Museum, then appreciate the history behind Vietnam Veterans Memorial, and finally contemplate in the serene atmosphere at Washington National Cathedral. Keep things going the next day: examine the collection at International Spy Museum, then admire the masterpieces at National Gallery of Art, then learn more about the world around you at Smithsonian National Museum of Natural History, and finally appreciate the history behind Washington Monument.

To find reviews, traveler tips, where to stay, and more tourist information, read Washington DC trip builder site.

Fly from New York City to Washington DC in 3 hours. Alternatively, you can take a train; or drive. In January in Washington DC, expect temperatures between 7°C during the day and -1°C at night. Wrap up your sightseeing on the 14th (Sun) early enough to fly to Key West.

Located just 140 km (90 mi) from Cuba, Key West is an island only about 6.4 km (4 mi) long and 1.6 km (1 mi) wide.

You'll enjoy a bit of beach vacationing at Bahia Honda State Park and Fort Zachary Taylor. Escape the urban bustle at Key West Butterfly & Nature Conservatory and Scuba & Snorkeling. Next up on the itinerary: examine the collection at The Ernest Hemingway Home and Museum, steep yourself in history at Oldest House & Garden Museum, take in the exciting artwork at 7 Artists & Friends Key West, and stroll the grounds of Key West Cemetery.

Klarna Trips's itinerary builder makes planning a Key West trip simple and quick.

Fly from Washington DC to Key West in 4.5 hours. Alternatively, you can drive; or do a combination of taxi and bus. Expect warmer temperatures when traveling from Washington DC in January; daily highs in Key West reach 28°C and lows reach 22°C. Wrap up your sightseeing on the 18th (Thu) early enough to fly 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.

Start off your visit on the 19th (Fri): get curious at La Brea Tar Pits and Museum, see the interesting displays at Petersen Automotive Museum, then shop like a local with The Grove, then see the interesting displays at The Getty Center, and finally stop by Bergamot Station. Here are some ideas for day two: get in on the family fun at Disneyland Park.

For more things to do, reviews, maps, and tourist information, read Los Angeles road trip tool.

Getting from Key West to Los Angeles by flight takes about 9 hours. Other options: drive; or take a bus. The time zone difference when traveling from Key West to Los Angeles is minus 3 hours. Prepare for a bit cooler weather when traveling from Key West in January: high temperatures in Los Angeles hover around 24°C and lows are around 11°C. Wrap up your sightseeing by early afternoon on the 21st (Sun) to allow enough time to travel back home.