The fliers set another record by performing the first non-stop polar flight and establishing a new route from the Soviet Union to the United States.

Cathay Pacific flew the first polar flight into Siberia in July 1998.

Balchen was a skilled flier who became an expert in handling planes on polar flights.

Subsequently he led polar flying expeditions in 1997 and 1998 with National Geographic filming a documentary on the history of early polar flights.

The polar flight took one week from July 24-31, 1931.

The principle is used by many animals and polar flights applied the idea before more advanced techniques became available.

Other airlines have announced plans for a handful of polar flights.

The descriptions of their polar flight are beautifully realized.

The success of this million-dollar expedition depended on the polar flight.

Since then, scientific and logistical tasks of polar flights have been performed by Polar 2.