Aircraft These are not all the airlines in the world but the ones that hold hands with the SFO Museum collection. There are 1,809 airlines and this is page 89 of 151.

Hispano Aviación HS-42. It is related to Hispano Aviación (the company) .
Horton Wingless. It is related to Horton (the company) .
Howard DGA-11. It is related to Howard (the company) .
Howard DGA-15P. It is related to Howard (the company) .
Howard DGA-8. It is related to Howard (the company) .
Huff-Daland Duster. It is related to Huff-Daland (the company) .
Huff-Daland LB-1 Pegasus. It is related to Huff-Daland (the company) .
Huff-Daland TA-2. It is related to Huff-Daland (the company) .
Huff-Daland TA-6. It is related to Huff-Daland (the company) .
Hughes D-2. It is related to Hughes (the company) .
Hughes H-1. It is related to Hughes (the company) .