This is a handy cheat sheet to easily search for flights directly on any airline in the world. Here is a list of airlines that offer regular commercial flights and links to their official online booking websites:

NameBooking WebsiteHub Country
ASKY Airlinesflyasky.comTogo
Adria Airwaysadria.siSlovenia
Aegean Airlinesaegeanair.comGreece
Aer Lingusaerlingus.comUnited Kingdom
Aeroflotaeroflot.ruRussia
Aerolineas Argentinasaerolineas.com.arBrazil
Aerolíneas Argentinasaerolineas.com.arArgentina
Aeroméxicoaeromexico.comMexico
Aeropostal Alas de Venezuelaaeropostal.comVenezuela
Afriqiyah Airwaysafriqiyah.aeroLibya
Air Algérieairalgerie.dzAlgeria
Air Arabiaairarabia.comUnited Arab Emirates
Air Astanaairastana.comKazakhstan
Air Berlinairberlin.comGermany
Air Botswanaairbotswana.co.bwBotswana
Air Burkinaair-burkina.comBurkina Faso
Air Canadaaircanada.comCanada
Air Caraibesaircaraibes.comFrance
Air Chinaairchina.comChina
Air Europaaireuropa.comSpain
Air Franceairfrance.comFrance
Air Indiaairindia.inIndia
Air Macauairmacau.com.moMacau, China
Air Madagascarairmadagascar.comMadagascar
Air Maltaairmalta.comMalta
Air Mauritiusairmauritius.comMauritius
Air Namibiaairnamibia.comNamibia
Air New Zealandairnewzealand.co.nzNew Zealand
Air Niuginiairniugini.com.pgPapua New Guinea
Air Nostrumairnostrum.comSpain
Air Serbiaairserbia.comSerbia
Air Seychellesairseychelles.comSeychelles
Air Tanzaniaairtanzania.co.tzTanzania
Air Zimbabweairzimbabwe.aeroZimbabwe
AirAsiaairasia.comMalaysia
airBalticairbaltic.comLatvia
Alaska Airlinesalaskaair.comUSA
Alitaliaalitalia.comItaly
All Nippon Airways (ANA)ana.co.jpJapan
Allegiant Airallegiantair.comCanada
American Airlinesaa.comUSA
Arik Airarikair.comNigeria
Asiana Airlinesflyasiana.comSouth Korea
Ata Airlinesataair.irIran
AtlasGlobalatlasglb.comTurkey
Austrian Airlinesaustrian.comAustria
Aviancaavianca.comColombia, El Salvador
Azerbaijan Airlinesazal.azAzerbaijan
Azul Linhas Aereasvoeazul.com.brBrazil
Bahamasairbahamasair.comThe Bahamas
Bangkok Airwaysbangkokair.comThailand
Belaviabelavia.byBelarus
Blue Airblueairweb.comRomania
Boliviana de Aviaciónboa.boBolivia
British Airwaysbritishairways.comUnited Kingdom
Brussels_Airlinesbrusselsairlines.comBelguim
Bulgaria Airair.bgBulgaria
Camair-Cocamair-co.cmCameroon
Caribbean Airlinescaribbean-airlines.comTrinidad and Tobaga
Cathay Pacificcathaypacific.comHong Kong, China
Cayman Airwayscaymanairways.comCayman Islands
Cebu Pacificcebupacificair.comPhilippines
Ceiba Intercontinental Airlinesfly-ceiba.comEquitorial Guinea
China Airlineschina-airlines.comTaiwan
China Eastern Airlinesflychinaeastern.comChina
China Southern Airlinescsair.comChina
Conviasaconviasa.aeroVenezuela
Copa Airlinescopaair.comPanama
Croatia Airlinescroatiaairlines.hrCroatia
Cubana de Aviacióncubana.cuCuba
Czech Airlinesczechairlines.comCzech Republic
Delta Air Linesdelta.comUSA
Dragonairdragonair.comHong Kong, China
ECAirflyecair.comRepublic of the Congo
EL ALelal.comIsrael
EVA Airevaair.comTaiwan
EcoJetecojet.boBolivia
Egypt Airegyptair.comEgypt
Emirates Airlineemirates.comUnited Arab Emirates
Enter Airenterair.plPoland
easyJeteasyjet.comUnited Kingdom
Ethiopian Airlinesethiopianairlines.comEthiopia
Etihad Airwaysetihad.comUnited Arab Emirates
ExpressJet Airlinesexpressjet.comUSA
Fastjetfastjet.comFastjet
Finnairfinnair.comFinland
Fireflyfireflyz.com.myMalaysia
Flybeflybe.comUnited Kingdom
Frontier Airlinesflyfrontier.comUSA
Garuda Indonesiagaruda-indonesia.comIndonesia
Gol Linhas Aereasvoegol.com.brBrazil
Gol Transportes Aéreosvoegol.com.brBrazil
Gulf Airgulfair.comBahrain
Hainan Grouphnair.comChina
Hawaiian Airlineshawaiianair.comUSA
Iberiaiberia.comSpain
Icelandairicelandairgroup.comIceland
IndiGogoindigo.inIndia
InselAirfly-inselair.comCuracao
Interair South Africainterair.co.zaSouth Africa
Iran Airiranair.comIran
Iran Aseman Airlinesasemanbooking.comIran
Japan Airlines (JAL)jal.comJapan
Jazeera Airwaysjazeeraairways.comKuwait
Jet Airwaysjetairways.comIndia
Jet2.comjet2.comUnited Kingdom
JetBlue Airwaysjetblue.comUSA
Jetstarjetstar.comAustralia
Juneyao Airjuneyaoair.comChina
KLMklm.comNetherlands
Kenya Airwayskenya-airways.comKenya
Kish Airkishairlines.irIran
Korean Airkoreanair.comSouth Korea
Kuwait Airwayskuwaitairways.comKuwait Airways
LAM Mozambique Airlineslam.co.mzMozambique
LAN Airlineslan.comChile
LIATliat.comAntigua and Barbuda
LOT Polish Airlineslot.comPoland
Libyan Airlineslibyanairlines.aeroLibya
Lion Airlionair.co.idIndonesia
Lufthansalufthansa.comGermany
Luxairluxair.luLuxembourg
Línea Aérea Amaszonasamaszonas.comBolivia
Mahan Airmahan.aeroIran
Malaysia Airlinesmalaysiaairlines.comMalaysia
Malindo Airmalindoair.comMalaysia
Meridianameridiana.comItaly
Middle East Airlinesmea.com.lbLebanon
Monarch Airlinesmonarch.co.ukUnited Kingdom
Nokairnokair.comThailand
Nordwind Airlinesnordwindairlines.ruRussia
Norwegian Airnorwegian.comNorway
Oman Airomanair.comOman
Onur Aironurair.com.trTurkey
Pakistan International Airwayspiac.com.pkPakistan
Pegasus Airlinesflypgs.comTurkey
Philippine Airlinesphilippineairlines.comPhilippines
Precision Airprecisionairtz.comTanzania
Qantasqantas.comAustralia
Qatar Airwaysqatarairways.comQatar
Royal Air Marocroyalairmaroc.comMorocco
Royal Jordanian Airlinesrj.comJordan
Rwandairrwandair.comRwanda
Ryanairryanair.comIreland
Saudia Airlinessaudiairlines.comSaudi Arabia
Scandinavian Airlines (SAS)flysas.comDenmark, Sweden , Norway
Scootflyscoot.comSingapore
Shandong Airlinesshandongair.com.cnChina
Shenzen Airshenzhenair.comChina
Shenzhen Airlinesshenzhenair.comChina
Siberia Airlines (S7 Airlines)s7.ruRussia
SilkAirsilkair.comSingapore
Sichuan Airlinesscal.com.cnChina
Singapore Airlinessingaporeair.comSingapore
South African Airwaysflysaa.comSouth Africa
South African Expressflyexpress.aeroSouth Africa
Southwest Airlinessouthwest.comUSA
SpiceJetspicejet.comIndia
Spirit Airlinesspirit.comUSA
Spring Airlinesch.com China
SriLankan Airlinessrilankan.comSri Lanka
Starbowflystarbow.comGhana
Sudan Airwayssudanair.comSudan
SunExpresssunexpress.comTurkey
Swissswiss.comSwitzerland
TAAG Angola Airlinestaag.comAngola
TACV Cabo Verde Airlinesflytacv.comCape Verde
TAM Linhas Aereastam.com.brBrazil
TAMEtame.com.ecEcuador
TAP Portugalflytap.comPortugal
TAROMtarom.roRomania
Thai Airwaysthaiairways.comThailand
Tigerairtigerair.comSingapore
Thomson Airwaysthomson.co.ukUnited Kingdom
Travel Servicetravelservice.aeroCzech Republic
Tunisairtunisair.comTunisia
Turkish Airlines (THY)turkishairlines.comTurkey
Turkmenistan Airlinesturkmenairlines.comTurkmenistan
UTair Aviationutair.ruRussia
Ukraine International Airlinesflyuia.comUkraine
United Airlinesunited.comUSA
Ural Airlinesuralairlines.ruRussia
Uzbekistan Airwaysuzairways.comUzbekistan Airways
VIM_Airlinesvim-avia.comRussia
Vietnam Airlinesvietnamairlines.comVietnam
Virgin Americavirginamerica.comUSA
Virgin Atlanticvirgin-atlantic.comUnited Kingdom
Virgin Australiavirginaustralia.comAustralia
Virgin Blue Airlinesvirginaustralia.comAustralia
VivaColombiavivacolombia.coColombia
Volarisvolaris.comMexico
Voloteavolotea.comSpain
Vueling Airlinesvueling.comSpain
WestJetwestjet.comCanada
Wizz Airwizzair.comHungary
XiamenAirxiamenair.comChina