United Continental Holdings, Inc. announced plans to launch year-round and seasonal service on several new routes to begin in the summer of 2012. The airlines will begin daily year-round service between Washington/Dulles International Airport (IAD) and Honolulu (HNL) on June 7, 2012, the only nonstop service between the two points. The flights will operate using Boeing 767-400 aircraft. From its Dulles hub, United also offers more domestic and international service from the nation's capital than any other airline. The airline will also add seasonal service to several popular summer travel destinations. Alaska: New daily service between Denver (DEN) and Fairbanks, Alaska (FAI), will operate from June 7, 2012 through Aug. 27, 2012, using Boeing 737-800 aircraft. Fairbanks offers access to Denali National Park, one of Alaska's most visited destinations. The flights complement United's existing Alaska service to Anchorage from hubs in Denver, Chicago, Houston and San Francisco, as well as Seattle. South Dakota: United Express will offer daily seasonal service between Houston's Bush Intercontinental Airport (IAH) and Rapid City, S.D. (RAP), gateway to the Black Hills, Mount Rushmore and the Badlands National Park from June 7, 2012, to August 27, 2012. ExpressJet will operate the flights using Embraer ERJ-145 aircraft. United currently serves Rapid City from its Denver and Chicago hubs. Wyoming: The airline will also add summer-season flights between its Houston and San Francisco (SFO) hubs and Jackson Hole, Wyo. (JAC), which attracts millions of summer visitors to nearby Yellowstone National Park and the Grand Tetons. The Houston flights will operate twice-weekly from June 8, 2012, through August 27, 2012, using Boeing 757 aircraft. The San Francisco flights will operate daily from July 1, 2012, through August 27, 2012, as United Express, with Bombardier CR7 aircraft flown by SkyWest Airlines. These flights are in addition to United's existing service to Jackson Hole from hubs in Chicago, Denver and Los Angeles.