Google flights serverices are supported in for following countries

CountryLink
Google Flights – Albaniahttps://www.google.al/flights/
Google Flights – Armeniahttps://www.google.am/flights/
Google Flights – Australiahttps://www.google.com.au/flights/
Google Flights – Azerbaijanhttps://www.google.az/flights/
Google Flights – Belgiumhttps://www.google.nl/flights/
Google Flights – Belarushttps://www.google.by/flights/
Google Flights – Bosnia and Herzegovinahttps://www.google.ba/flights/
Google Flights – Brazilhttps://www.google.com.br/flights/
Google Flights – Bulgariahttps://www.google.bg/flights/
Google Flights – Canadahttps://www.google.ca/flights/
Google Flights – Croatiahttps://www.google.hr/flights/
Google Flights – Cyprus
Google Flights – Czechiahttps://www.google.cz/flights/
Google Flights – Estoniahttps://www.google.ee/flights/
Google Flights – Finlandhttps://www.google.fi/flights/
Google Flights – France
https://www.google.fr/flights/
Google Flights – Georgiahttps://www.google.ge/flights/
Google Flights – Germanyhttps://www.google.de/flights/
Google Flights – Greecehttps://www.google.gr/flights/
Google Flights – Greenlandhttps://www.google.dk/flights/
Google Flights – Hungaryhttps://www.google.hu/flights/
Google Flights – Icelandhttps://www.google.is/flights/
Google Flights – Indiahttps://www.google.co.in/flights/
Google Flights – Indonesiahttps://www.google.co.id/flights/
Google Flights – Irelandhttps://www.google.ie/flights/
Google Flights – Italy
https://www.google.it/flights/
Google Flights – Latvia
Google Flights – Latvia
https://www.google.lv/flights/
Google Flights – Luxembourghttps://www.google.lu/flights/
Google Flights – Macedoniahttps://www.google.mk/flights/
Google Flights – Malaysiahttps://www.google.com.my/flights/
Google Flights – Mauritius
Google Flights – Mexico
https://www.google.com.mx/flights/
Google Flights – Moldova
https://www.google.ro/flights/
Google Flights – Montenegro
https://www.google.me/flights/
Google Flights – Netherlands
https://www.google.nl/flights/
Google Flights – NewZealandhttps://www.google.co.nz/flights/
Google Flights – Polandhttps://www.google.pl/flights/
Google Flights – Portugalhttps://www.google.pt/flights/
Google Flights – Romaniahttps://www.google.ro/flights/
Google Flights – Russiahttps://www.google.ru/flights/
Google Flights – Serbiahttps://www.google.rs/flights/
Google Flights – Sloveniahttps://www.google.si/flights/
Google Flights – Slovakiahttps://www.google.sk/flights/
Google Flights – Spainhttps://www.google.es/flights/
Google Flights – Sweden

https://www.google.se/flights/
Google Flights – Switzerland

https://www.google.de/flights/
Google Flights – United Kingdom

https://www.google.co.uk/flights/
Google Flights - United States of America (USA)https://www.google.com/flights/
Google Flights – Ukraine
https://www.google.com.ua/flights/

Total Number Of Countries That Google Flights Available

  1. Google Flights – Albania
  2. Google Flights – Armenia
  3. Google Flights – Australia
  4. Google Flights – Azerbaijan
  5. Google Flights – Belgium
  6. Google Flights – Belarus
  7. Google Flights – BosniaandHerzegovina
  8. Google Flights – Brazil
  9. Google Flights – Bulgaria
  10. Google Flights – Canada
  11. Google Flights – Croatia
  12. Google Flights – Cyprus
  13. Google Flights – Czechia
  14. Google Flights – Estonia
  15. Google Flights – Finland
  16. Google Flights – France
  17. Google Flights – Georgia
  18. Google Flights – Germany
  19. Google Flights – Greece
  20. Google Flights – Greenland
  21. Google Flights – Hungary
  22. Google Flights – Iceland
  23. Google Flights – India
  24. Google Flights – Indonesia
  25. Google Flights – Ireland
  26. Google Flights – Italy
  27. Google Flights – Latvia
  28. Google Flights – Lithuania
  29. Google Flights – Luxembourg
  30. Google Flights – Macedonia
  31. Google Flights – Malaysia
  32. Google Flights – Mauritius
  33. Google Flights – Mexico
  34. Google Flights – Moldova
  35. Google Flights – Montenegro
  36. Google Flights – Netherlands
  37. Google Flights – NewZealand
  38. Google Flights – Poland
  39. Google Flights – Portugal
  40. Google Flights – Romania
  41. Google Flights – Russia
  42. Google Flights – Serbia
  43. Google Flights – Slovenia
  44. Google Flights – Slovakia
  45. Google Flights – Spain
  46. Google Flights – Sweden
  47. Google Flights – Switzerland
  48. Google Flights – UnitedKingdom
  49. Google Flights – UnitedStatesofAmerica
  50. Google Flights – Ukraine