There is no minimum validity requirement. Portugal is in the EU. All EU citizens (including UK) can travel to Portugal up to the last day on their passport.
Different rules apply to citizens of non-EU countries.
Citizens of the European Union (both the UK and Portugal are members) can travel inside the Union for unlimited period of time without a visa and validity of less than 6 months is not an issue.
It is best to have at least 6 months after your date of return to the US remaining on your passport.
Travel time to (by car) : (65 Hours)Travel time to (by plane) : (9 Hours)
You can travel anywhere you want as long as you bring your passport and student visa with you!
hows long is the flight from Liverpool to Portugal
It must at least have three months left.
How long needed on passport to travel to FinlandFinland
UK passport holders require 6 months left on their passport
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You don't need a passport to travel between the UK and the Republic of Ireland.
You need at least 3 months left from the time that you depart for US. But many countries need at least 6 months left of passport validity for international travel.
You can travel immediately after acquiring a passport.
According to the State Department website and the airlines (USAirways) your passport just needs to be valid for your travel dates. As long as you are back before your passport expires, you are OK.
A person may still travel to any country as long as the passport is not expired. How long before it expires is not taken into account unless the passport expires before the traveler is expected to return.
depends on duration of stay, if passport expires in 2 weeks, and you stay in Hungary for 3 weeks - problem!
Usually at least six months but it may differ by country.
Not long if you are in Cambodia and have a passport.