zaina123 said:
I have searched many flights to Montreal from Lahore.All are multiple carriers which go through from London, New York or Paris.all flights have two to four hours layover time at air port.Does any of flight requires a transit visa for such short time of duration at any airport as per rules and regulations?
I am sure you UK and France. If you have a visa for Canada or US they will not require a transit visa. My brother flew to Canada via London and he did not need a transit visa. My dad flew to US via Paris and he did not need a transit visa.
T$
http://www.ukba.homeoffice.gov.uk/visas-immigration/transitthroughtheuk/visa-transit-airside/
Exemptions:
1) a valid entry visa for Australia, Canada, New Zealand or the USA, and a valid airline ticket for travel via the UK, as part of a journey to or from one of those countries; or
2) a valid airline ticket for travel via the UK as part of a journey from Australia, Canada, New Zealand or the USA, if you are transiting the UK no more than 6 months after the date when you last entered Australia, Canada, New Zealand or the USA with a valid entry visa for that country; or