EVERETT, Washington — After billions of dollars and years of delays, Boeing pushed the first passenger-carrying 787 Dreamliner out of the paint shop and opened the doors for a sneak peek inside.

The freshly painted 264-seat airliner rolled out on Saturday for launch customer All Nippon Airways, and company execs were on hand to get a first-hand look at the latest addition to their fleet. During a press conference at Boeing's delivery center, just a short walk from where the 787 Dreamliner aircraft are assembled, ANA senior vice president Mitsuo Morimoto said, "We plan to use the 787 to expand our business, particularly our international routes."

The 787 is expected to finish certification testing during the next several weeks. Boeing says the airplane pictured above will be delivered before the end of September.

The first passenger flight for the 787 Dreamliner will be a chartered hop from Tokyo's Narita airport to Hong Kong. Then it begins scheduled flights between Tokyo's Haneda airport and either Okayama or Hiroshima.

We took a walk through the composite airplane, which features several noticeable differences compared to a typical airliner. From the pilot's seat to the passenger's seat to the toilet seat, the Dreamliner features a range of things aimed at making flying a little more enjoyable.

Photos: Jason Paur/Wired.com