Eastern Air Lines Shuttle

[1] Initially 95/96 seat Lockheed 1049 Super Constellations left New York-LaGuardia every two hours, from 8:00 AM to 10:00 PM, to Washington National and to Boston.

Passengers could pay in cash after boarding, so the fares soon dropped a few cents to $12 and $14 including the 10% federal tax.

[4] Reservations were not needed, seat assignments were not given, and initially no check-in was required and no boarding passes were issued.

On Sunday after Thanksgiving 1961 the 10 PM flights between La Guardia and Boston carried 623 passengers on seven aircraft.

[7][9] Just a year later the company was in financial default and surrendered to become Shuttle INC. which USAir entered into an agreement to operate in 1992, then bought in 1997.

Eastern Air Shuttle ticket in the mid-1970s
First sections were DC-9s from 1967 until the Shuttle's demise