In February 2018, Hawaiian was rumored to be canceling its order for six A330-800s and replacing them with 787-9s.[82] It was reported that Boeing priced the aircraft at less than $115 million, and possibly less than $100 million, each; the production cost of a 787-9 is between $80 million and $90 million. Boeing Capital also released Hawaiian from three 767-300ER leases in advance; these aircraft were to be transferred to United Airlines. Initially, Hawaiian refuted it cancelled its A330-800 order, but did not dismiss a new deal with Boeing.[83] However, on March 6, 2018, Hawaiian Airlines confirmed the cancellation of the A330-800 order and the signing of a Letter of Intent with Boeing to purchase ten 787-9 aircraft, with options for an additional ten planes;[84] the deal was finalized at the Farnborough Air Show in July 2018.[85]
A more recent development is the airline alliance, which became prevalent in the late 1990s. These alliances can act as virtual mergers to get around government restrictions. Alliances of airlines such as Star Alliance, Oneworld, and SkyTeam coordinate their passenger service programs (such as lounges and frequent-flyer programs), offer special interline tickets, and often engage in extensive codesharing (sometimes systemwide). These are increasingly integrated business combinations—sometimes including cross-equity arrangements—in which products, service standards, schedules, and airport facilities are standardized and combined for higher efficiency. One of the first airlines to start an alliance with another airline was KLM, who partnered with Northwest Airlines. Both airlines later entered the SkyTeam alliance after the fusion of KLM and Air France in 2004.

Congress passed the Air Transportation Safety and System Stabilization Act (P.L. 107-42) in response to a severe liquidity crisis facing the already-troubled airline industry in the aftermath of the September 11th terrorist attacks. Through the ATSB Congress sought to provide cash infusions to carriers for both the cost of the four-day federal shutdown of the airlines and the incremental losses incurred through December 31, 2001, as a result of the terrorist attacks. This resulted in the first government bailout of the 21st century.[44] Between 2000 and 2005 US airlines lost $30 billion with wage cuts of over $15 billion and 100,000 employees laid off.[45]

In 2017, 4.1 billion passengers have been carried by airlines in 41.9 million commercial scheduled flights (an average payload of 98 passengers), for 7.75 trillion passenger kilometres (an average trip of 1890 km) over 45,091 airline routes served globally. In 2016, air transport generated $704.4 billion of revenue in 2016, employed 10.2 million workers, supported 65.5 million jobs and $2.7 trillion of economic activity: 3.6% of the global GDP.[60]
In extreme cases, beach nourishment may involve placement of large pebbles or rocks in an effort to permanently restore a shoreline subject to constant erosion and loss of foreshore. This is often required where the flow of new sediment caused by the longshore current has been disrupted by construction of harbors, breakwaters, causeways or boat ramps, creating new current flows that scour the sand from behind these structures, and deprive the beach of restorative sediments. If the causes of the erosion are not addressed, beach nourishment can become a necessary and permanent feature of beach maintenance.
The development of the beach as a popular leisure resort from the mid-19th century was the first manifestation of what is now the global tourist industry. The first seaside resorts were opened in the 18th century for the aristocracy, who began to frequent the seaside as well as the then fashionable spa towns, for recreation and health.[3] One of the earliest such seaside resorts, was Scarborough in Yorkshire during the 1720s; it had been a fashionable spa town since a stream of acidic water was discovered running from one of the cliffs to the south of the town in the 17th century.[3] The first rolling bathing machines were introduced by 1735.
In view of the congestion apparent at many international airports, the ownership of slots at certain airports (the right to take-off or land an aircraft at a particular time of day or night) has become a significant tradable asset for many airlines. Clearly take-off slots at popular times of the day can be critical in attracting the more profitable business traveler to a given airline's flight and in establishing a competitive advantage against a competing airline.
On August 30, 2012, Hawaiian filed an application with the U.S. Department of Transportation for a nonstop route between Kona and Tokyo-Haneda.[41] This would fill a void that Japan Airlines left when it ceased service to Kona nearly two years earlier.[41] However, the US Department of Transportation rejected the airline's application to begin service.[42] 

Coastlines facing very energetic wind and wave systems will tend to hold only large rocks as smaller particles will be held in suspension in the turbid water column and carried to calmer areas by longshore currents and tides. Coastlines that are protected from waves and winds will tend to allow finer sediments such as clay and mud to precipitate creating mud flats and mangrove forests. The shape of a beach depends on whether the waves are constructive or destructive, and whether the material is sand or shingle. Waves are constructive if the period between their wave crests is long enough for the breaking water to recede and the sediment to settle before the succeeding wave arrives and breaks.
The development of the seaside resort abroad was stimulated by the well-developed English love of the beach. The French Riviera alongside the Mediterranean had already become a popular destination for the British upper class by the end of the 18th century. In 1864, the first railway to Nice was completed, making the Riviera accessible to visitors from all over Europe. By 1874, residents of foreign enclaves in Nice, most of whom were British, numbered 25,000. The coastline became renowned for attracting the royalty of Europe, including Queen Victoria and King Edward VII.[7]
The Dutch airline KLM made its first flight in 1920, and is the oldest continuously operating airline in the world. Established by aviator Albert Plesman,[11] it was immediately awarded a "Royal" predicate from Queen Wilhelmina.[12] Its first flight was from Croydon Airport, London to Amsterdam, using a leased Aircraft Transport and Travel DH-16, and carrying two British journalists and a number of newspapers. In 1921, KLM started scheduled services.
On March 31, 2011, Hawaiian announced that they will be renovating the check-in lobby of the inter-island terminal at the Honolulu International Airport (Hawaiian's main hub). Hawaiian, the only occupant of the inter-island terminal, will be removing the traditional check-in counter, to install six circular check-in islands in the middle of the lobbies. Those check-in islands can be used for inter-island, mainland, and international flights.[38]
ʻOhana by Hawaiian is a regional subsidiary carrier of Hawaiian Airlines. The service is operated using three ATR 42 turboprop airplanes owned by Hawaiian and operated under contract by Empire Airlines. The new service was slated to begin in summer 2013 initially flying to Molokaʻi and Lānaʻi, however the airline was unable to begin during that period due to Federal Aviation Administration delays in certifying ʻOhana's operation.[56] ʻOhana by Hawaiian is fully integrated into the Hawaiian Airlines network.[44]