World War II, like World War I, brought new life to the airline industry. Many airlines in the Allied countries were flush from lease contracts to the military, and foresaw a future explosive demand for civil air transport, for both passengers and cargo. They were eager to invest in the newly emerging flagships of air travel such as the Boeing Stratocruiser, Lockheed Constellation, and Douglas DC-6. Most of these new aircraft were based on American bombers such as the B-29, which had spearheaded research into new technologies such as pressurization. Most offered increased efficiency from both added speed and greater payload.[32][33]
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.
Where to stay in Santorini: Trendier pretenders come and go, but Perivolas is still the most stylish and peaceful place to stay. If you have cash to splash, and can’t stand the crowds, take over Perivolas Hideaway, a waterfront villa on Santorini’s undiscovered offshoot, Thirassia, or Erosantorini, a stunning clifftop estate with a tiered pool plunging 1000 feet to the sea.
As soon as I think of travel, it’s not long before my mind drifts to white sand beaches, azure blue water, and palm trees in tropical locales. When most people think of paradise, chances are they’re thinking of tropical islands is far-flung corners of the world. Lounging with a good book, drinking from coconuts, soaking up the rays. Does it get any better than that? 

Beach Day: Spend a day on one of many beautiful small beaches and bays, including pebble and sand beaches. Beaches to check out are Pocukmarak (the biggest beach on the south side, which also happens to contain a stone sarcophagus and two covers in the water that are around 1500 years old), Tratica, Carpusina and Sotorisce (the biggest and the most popular beach on Silba).
Since airline reservation requests are often made by city-pair (such as "show me flights from Chicago to Düsseldorf"), an airline that can codeshare with another airline for a variety of routes might be able to be listed as indeed offering a Chicago–Düsseldorf flight. The passenger is advised however, that airline no. 1 operates the flight from say Chicago to Amsterdam, and airline no. 2 operates the continuing flight (on a different airplane, sometimes from another terminal) to Düsseldorf. Thus the primary rationale for code sharing is to expand one's service offerings in city-pair terms to increase sales.
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