31 days in United States Itinerary

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

Appreciate the collections at The Metropolitan Museum of Art and The Museum of Modern Art (MoMA). Your inner history buff will appreciate 9/11 Memorial and St. Patrick's Cathedral. There's lots more to do: go for a walk through Central Park, take in panoramic vistas at Empire State Building, snap pictures at Brooklyn Bridge, and wander the streets of Times Square.

To see photos, traveler tips, other places to visit, and tourist information, read our New York City online journey planner.

Manchester, UK to New York City is an approximately 11-hour flight. The time zone difference when traveling from Manchester to New York City is minus 5 hours. In December in New York City, expect temperatures between 10°C during the day and 2°C at night. Finish up your sightseeing early on the 16th (Fri) so you can catch the flight to Key Largo.

The northernmost island of the Florida Keys, Key Largo provides stunning scenery, a number of watersports opportunities, and plenty of areas to relax on vacation.

Start off your visit on the 17th (Sat): observe the fascinating underwater world at Island Dolphin Care, look for all kinds of wild species at Florida Keys Wild Bird Rehabilitation Center, and then step aboard African Queen Canal Cruise. On your second day here, get a new perspective on things with Boat Tours & Water Sports, then head outdoors with Capt. Sterling's Everglades Eco-Tours, and then admire the majestic nature at John Pennekamp Coral Reef State Park.

To see where to stay, traveler tips, photos, and other tourist information, go to the Key Largo road trip planning app.

Fly from New York City to Key Largo in 5 hours. Alternatively, you can drive; or take a bus. Traveling from New York City in December, things will get warmer in Key Largo: highs are around 30°C and lows about 22°C. Finish your sightseeing early on the 18th (Sun) to allow enough time to drive to Marathon.

A tiny city just 16 km (10 mi) long, Marathon is spread across several islands in the middle of the Florida Keys.

On the 19th (Mon), look for all kinds of wild species at Dolphin Research Center and then kick back and relax at Bahia Honda State Park. On the next day, take a tour by water with Boat Tours & Water Sports, then enjoy the sand and surf at Sombrero Beach, and then identify plant and animal life at The Turtle Hospital.

Ask Klarna Trips to suggest an itinerary and make planning a trip to Marathon fast, fun, and easy.

You can drive from Key Largo to Marathon in 1.5 hours. Another option is to take a bus. Expect a daytime high around 31°C in December, and nighttime lows around 25°C. Finish your sightseeing early on the 20th (Tue) to allow enough time to drive 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.

Step off the beaten path and head to Fort Zachary Taylor and Truman Little White House. Get in touch with nature at Dry Tortugas National Park and Fishing Charters & Tours. There's lots more to do: meet the residents at Florida Keys Eco-Discovery Center, enjoy the sea views from Key West Lighthouse and Keeper's Quarters Museum, identify plant and animal life at Key West Butterfly & Nature Conservatory, and stroll the grounds of Key West Cemetery.

To find reviews, where to stay, maps, and tourist information, use the Key West trip maker site.

Traveling by car from Marathon to Key West takes 1.5 hours. Alternatively, you can take a bus. In December, plan for daily highs up to 30°C, and evening lows to 25°C. You'll set off for Hilo on the 25th (Sun).

One of the island of Hawaii's major towns, Hilo contains a mix of Asian and Polynesian cultures and is known for its proximity to a national park encompassing two active volcanoes.

Start off your visit on the 26th (Mon): admire all the interesting features of Devastation Trail, trek along Kilauea Iki Trailhead, and then explore the striking landscape at Thurston Lava Tube (Nahuku). Here are some ideas for day two: immerse yourself in nature at Akaka Falls State Park, then admire the natural beauty at Hawaii Tropical Bioreserve and Garden, then admire the natural beauty at Liliuokalani Gardens, and finally take in the dramatic scenery at Rainbow Falls.

To see traveler tips, maps, reviews, and other tourist information, refer to the Hilo itinerary tool.

Traveling by flight from Key West to Hilo takes 16.5 hours. The time zone difference moving from Eastern Standard Time (EST) to Hawaii-Aleutian Standard Time (HST) is minus 5 hours. Traveling from Key West in December, plan for little chillier nights in Hilo, with lows around 21°C. Cap off your sightseeing on the 27th (Tue) early enough to go by car 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.

Get a sense of the local culture at Pu'uhonua O Honaunau National Historical Park and Puukohola National Historic Park. Bring the kids along to Saddle Road and Manini'owali Beach (Kua Bay). Change things up with these side-trips from Kailua-Kona: Waipiʻo Valley Lookout (in Honokaa), Hapuna Beach State Recreation Area (in Puako) and The 1871 Trail (in Honaunau). And it doesn't end there: tour the pleasant surroundings at Waipio Valley, appreciate the views at Pololu Valley Lookout, get outside with Outdoor Activities, and kick back and relax at Kahaluu Beach.

Use Klarna Trips's suggestions to plan your Kailua-Kona trip and find the best activities and attractions for your vacation.

Traveling by car from Hilo to Kailua-Kona takes 2 hours. Alternatively, you can drive; or take a bus. In December in Kailua-Kona, expect temperatures between 32°C during the day and 24°C at night. Wrap up your sightseeing on the 1st (Sun) early enough to fly to Lahaina.

Once the booming capital of the Hawaiian Kingdom, the tropical paradise of Lahaina still remains one of Maui's top vacation attractions, providing both culture and recreation.

Kids will appreciate attractions like Lahaina Front Street and Shark Diving. Explore hidden gems such as Zipline and Wailea Beach. Explore the numerous day-trip ideas around Lahaina: Helicopter Tours (in Kahului), Iao Valley (in Wailuku) and Kamaole Beach Park III (in Kihei). There's still lots to do: enjoy the sand and surf at Napili Beach and walk around Lahaina Banyan Court.

For other places to visit, more things to do, traveler tips, and tourist information, you can read our Lahaina day trip planner.

Traveling by flight from Kailua-Kona to Lahaina takes 2.5 hours. Expect a daytime high around 30°C in January, and nighttime lows around 22°C. Finish your sightseeing early on the 5th (Thu) so you can fly to Honolulu.

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

Get outdoors at Lanikai Beach and Nature & Wildlife Tours. Kids will enjoy USS Arizona Memorial and Koko Crater Railway Trail. The adventure continues: steep yourself in history at Battleship Missouri Memorial, contemplate the waterfront views at Hanauma Bay Nature Preserve, examine the collection at USS Bowfin Submarine Museum & Park, and get engrossed in the history at Iolani Palace.

Planning Honolulu trip won't be overwhelming when you use Klarna Trips's itinerary maker.

Getting from Lahaina to Honolulu by flight takes about 2.5 hours. January in Honolulu sees daily highs of 32°C and lows of 22°C at night. Cap off your sightseeing on the 10th (Tue) early enough to catch the flight back home.