City pair City pair In commercial aviation, a city pair is defined as a pair of departure (origin) and arrival (destination) airport codes on a flight itinerary. A given city pair may be a single non-stop flight segment, a direct flight with one or more stops, or an itinerary with connecting flights (multiple segments). The city pair, IAD-LHR would consist of flights and/or multi-leg itineraries that originate at Washington-Dulles airport and terminate at London-Heathrow airport. The city pair, NYC-TYO would consist of flights and/or multi-leg itineraries that originate at any New York airport (New York-JFK, Newark-Liberty or New York-LaGuardia) and terminate at
Eleanor Lansing Dulles Watson Foster, served as United States Secretary of State under President Benjamin Harrison, for eight months. Her mother's sister married Robert Lansing, Secretary of State under President Woodrow Wilson. Her oldest brother, John Foster Dulles, was Secretary of State under President Dwight D. Eisenhower. Her brother Allen Dulles served as Director of the Central Intelligence Agency from 1953 to 1961. She had two sisters as well. Her nephew Avery Dulles was a cardinal of the Roman Catholic Church. Eleanor Lansing Dulles married Professor David Simon Blondheim (1884–1934) on December 6, 1932. Blondheim had been a Medieval Studies fellow of the