In 1933, Boston and Maine Railroad again formed a Boston-Maine Airways subsidiary, which started service on August 11, 1933, from Boston to Portland and Bangor, Maine, using eight-passenger Stinson T planes. The fare from Boston to Bangor cost $23 round-trip.
The carrier's early flights were operated under contract by National Airways, whose founders included Paul Collins, one of the country's first airmail pilots; Samuel J. Solomon, a pioneer airport operator; Eugene Vidal, a West Point graduate; and Amelia Earhart, the first woman to fly solo across the Atlantic.
National Airways made a similar operating agreement on October 27, 1933, with Central Vermont Airways, founded by the Central Vermont Railroad (owned by Canadian National Railway). National Airways coordinated the two railroad-sponsored airlines as one, hyphenating the two railroad names and issuing joint timetables and fares. Central Vermont's route extended from Boston to New Hampshire and Vermont, and on March 20, 1934, to Montreal, Canada.
In 1937, Boston and Maine purchased National Airways' assets, including its airmail contract, and in November 1940, renamed it Northeast Airlines.