The United States is one of few countries in which travelers can take a six-hour flight from coast-to-coast (or even an 11-hour flight if you're flying from the East Coast to Hawaii) and land in the same nation. So it's not unreasonable that premium U.S. fliers would expect some upgraded cabin comforts on long domestic routes—namely, lie-flat seats. Many U.S. airlines do offer lie-flat seating as part of their domestic business class service, but which ones, and on what routes? Here's exactly which carriers' flights within the U.S. allow you to achieve a full 180 degrees at 35,000 feet.
JetBlue
JetBlue’s Mint experience (the airline's name for business class) is offered on certain coast-to-coast and Caribbean flights, including long-haul travel between New York, Boston, and Florida, to Seattle, San Francisco, Los Angeles, San Diego, and Las Vegas, as well as to six Caribbean destinations from New York and Boston. The service boasts the longest fully lie-flat seat (6'8") on a domestic premium flight, and each seat even features cushions customized to your firmness preferences, a massage feature, and the option of a privacy door in the suites.
United Airlines
United Airlines offers fully lie-flat seating on a vast number of its domestic routes. In fact, if you're traveling a long-haul itinerary with pairings between New York, Denver, D.C., Honolulu, Texas, Los Angeles, Orlando or San Francisco, there's a strong chance the premium cabin will include fully lie-flat seats with over six feet of pitch, and if you're flying between New York and California, you may be set to experience United's premium Polaris cabin. The airline advises that to be certain of full lie-flat seating, contact them at the time of booking, as some aircraft with business class on these same routes will not offer the service.
American Airlines
American also offers fully lie-flat seating. The key is to look out for flights using their Airbus A321T, the airline's premium jet, as that's where the airline keeps its most premium product. Currently, the A321T flies from New York to Los Angeles and San Francisco. Fliers can expect a 15.4-inch high-definition touchscreen, fluffy pillows, multiple USB ports, Bose noise-cancelling headphones, and multiple storage options.
Delta Air Lines
A Delta One seat, the same service that international Delta business travelers receive, includes 180-degree, fully flat-bed seats. Luckily for U.S. travelers, it's also offered on a select number of domestic routes: Boston to Los Angeles, JFK to San Diego, Los Angeles, Seattle, and Vegas, as well as Atlanta and Minneapolis to Honolulu. That means travelers between any of those destinations can look forward to the same creature comforts as the aforementioned United perks and a massive 18-inch screen to rival your television at home.
Hawaiian Airlines
Hoping for some deep sleep on Hawaiian Airlines en route to your tropical vacation? You’re in luck. Hawaiian's Airbus A330 first class cabin features fully lie-flat leather seats which are more than 20 inches wide, and 6'3" inches long. Because the airline knows most Hawaii travelers are couples, families, and honeymooners, their cabin is also set up in a 2-2-2 configuration, allowing even more quality time with your travel partner.