Hai Au Aviation, Hanoi, Vietnam, founded 2011/2014.   #1:

Hainan Airlines, Haikou, China, founded 1993, 
Chang'an Airlines, 1993-2007, was a subsidary of Hainan Group since 2000.
-  #2  and  #8 considered acc logo to be Chang'an Airlines, Xi'an :

   -                  #4                                       #12                                  #11:

  -                 #9,                                     #13,                             #16:

-  front same for following bags (Waste), rear different  -  #17,    #19: 

-   front same for following bags (Airsickness), rear diff  -  #18,   #21.  - #23(flat base,lat.clip):
     
-                        #25,                   #28,                  #33:

Hamburg Airlines, Germany, 1988-1997.      -    #1,                 #2:

Hamburg International, Germany,  1998 - 2010.   - #1-normal-/#2-glossy paper,      #3,      #4:

Hapag-Lloyd Flug, Hannover, Germany, 2007 merged into TUIfly (q.v.).
-      #8,                        #17/#18(diff print color and size),                    #16:

-     #9,                           #12,                                      #1 - #6 (diff maker logos):

-                       #11,                                                         #13:

Hawaiian Airlines, Honolulu, USA, founded 1929.
  -     #2/#3/#6 rear print:(no patent/patent/patent and maker),            #5:

Hebei Airlines, Shijiazhuang, Hebei Prov., V.R.China, founded 2010.   - #1:

Helios Airways, Larnaca, Cyprus, 1999-2006.    -  #1:

Helisul Taxi Aereo, Foz do Iguacu, Brazil, founded 1976 by renaming from Tropical Taxi Aereo. -#2:

Helitours, Colombo, Sri Lanka, founded 1972.    -   #1:

Hellas Jet, Athens, Greece, 2002 - 2010.    -   #1:

Hellenic Imperial Airways, Athen, Greece,  2006-2012.    -   #1(front and rear shown):

Hello AG, Basel, Switzerland,  2004 - 2012.           -  #1      and       #2:

Helvetic Airways, Zurich-Kloten, Switzerland, founded 2003.
-           #2,                                            #3,                                                 #1:

HEMUS Air, Sofia, Bulgaria, 1991-2009. In 2007 merged with Bulgaria and
Viaggio, HEMUS brand disappeared 2009, Bulgaria Air was solely continued.

Hermes Airlines, Athens, Greece, founded 2011.   -  #1:
Other side of the bag shows mother-company Air Mediterranee(q.v.).

Hi Air, Ulsan, South Korea,  2017/2019-2023.    -   #1:

HiSky aero, Chisinau, Moldova, founded 2019.  -    #1:

HISPANIA 1982-1987. The Logo is a sticker covering former TAE logo
(Trabajos Aereos y Enlaces),        -   #2:

HLX (Hapag-Lloyd-Express), Hannover, Germany:



H.M. the SULTAN'S Flight, Brunei, founded 1979.      -  #1:

Hongkong Airlines/Express, founded 2001, as of 2005 affiliate HKG Express was founded.
#6a,   #10,    #6 (#6a and #6 print front ...Airlines, rear: Express;  #10 both sides same: Airlines):

  Hongkong Airlines -                      #1,                  #2,                                    #9:

-     #11:

Hongkong Express -    #1:

Hongtu Airlines, Kunming, Yunnan Prov., China, 2014-2018 renamed as Air Travel.    - #1:

HORIZON Air, SeaTac(Seattle), Washington, USA, founded 1981.    -  #2:

Hummingbird Helicopters, Male, Maldives, 1989-1997  -   #1:  ,.
renamed as  Hummingbird Island Airways  -  #1: ,  2000 renamed as Trans Maldivian (q.v.).
   
Hungarian Airforce, Kecskemet, Hungary, *2000.    -  #1:

Hunnu Air, Ulaanbaatar, Mongolia, founded 2011 as Mongolian, renamed in 2013 on dispute with MIAT.  - #1: