Kam Air, Kabul, Afghanistan, founded 2003. - #1:

Karthago Airlines, Tunis, Tunesia, 2001-2011. - #1:

Karun Airlines, Teheran, Iran, founded 2017 by renaming from Naft Air(q.v.). - #1, #2:


Kayala Airline, Jeddah, Saudi-Arabia, 2005-2009. - #1:

Kenya Airways, Nairobi, founded 1977. - #1, #2, #12, #23:




- #11no Skyteam-logo/#13, #3pointy-/#6flat base, #8:


#14, #17/#18(diff paper and base coversheet), #20(rear):



Khalifa Airways,Algiers, Algeria, 1999-2003.
- #1, #2, #4(rear plain):



Kish Air, Tehran, Iran, founded 1989. - #5, #11:


Kingfisher, Bangalore, India, founded 2004. - #3:

KlasJet, Vilnius, Lithuania, founded 2014. - #1:

KLM, Amsterdam, Netherlands, founded 1920.
- #1(KLM 6,5cmL), #17, #2/#11(diff. paper and cut), #4/#21/#22:



- #20(KLM 5cmL), #24, #7(glossy)/#12/#14(normal paper and diff text at base), #3/#8/#10:




KLM Flowers # 3, #4, and #5:


KLM Destinations Edition #1-3(normal paper)/#4-6(glossy paper)/#7-9(glossy+FSC):




- #27, #28(no FSC)/#29(FSC in gusset)#31(glossy), #30(all blue,glossy)/#33(paper):



KLM Cityhopper, Amsterdam, Netherlands, founded 1966.
#1(name at base)/#6(plain base), #2/ #3/#5(diff paper and gusset):

KLM UK, London, 1998-2003. #1:

Korean Airlines, Seoul, South-Korea, founded 1962, renamed 1984 as Korean Air.
#1(Normal paper, "For Motion..." 5mm tall types):

- #1, #2, #3:


- #5, #11 blue frame and #8/8a(glossy) grey frame:


KrasAir, Krasnojarsk, Siberia, Russia, 1998 - 2008. - #1:

Kunming Airlines, Kunming, Yunnan Prov., China, founded 2009. - #1, #2, #4:



- #3, #5:


Kuwait Airways, Kuwait-City, founded 1954.
- #1, #5(Normal-)/#9(glossy paper), #3(w lateral clip)/#10(maker also at base):




- #6(sealed base)/#7(flat base), # 12, #13(front and rear):

