The Horizon Air fleet comprises the following aircraft (as of November 2019):
The Bombardier Q400, a high speed, high-wing turboprop, is operated in a single class configuration with 76 all leather, non-reclining seats, two on either side of the aisle.
In 2019 Horizon brought back Q400s which had been retired, because of the delayed delivery of Boeing 737 MAX to parent Alaska Airlines.

The Embraer E175 regional jets are operated in a three-class configuration (first class, premium class, and main cabin) with a total of 76 all leather, reclining seats.
The premium class/main cabin sections of the aircraft have two seats either side of the aisle, the first class section has a single seat on one side of the aisle and two seats on the other.
The Horizon Air fleet comprises the following aircraft (as of November 2019):
The Bombardier Q400, a high speed, high-wing turboprop, is operated in a single class configuration with 76 all leather, non-reclining seats, two on either side of the aisle. In 2019 Horizon brought back Q400s which had been retired, because of the delayed delivery of Boeing 737 MAX to parent Alaska Airlines.
The Embraer E175 regional jets are operated in a three-class configuration (first class, premium class, and main cabin) with a total of 76 all leather, reclining seats. The premium class/main cabin sections of the aircraft have two seats either side of the aisle, the first class section has a single seat on one side of the aisle and two seats on the other.
Horizon Air