Most overseas mail is now by air.
90 cents
my letter UK airmail to Texas took 10 days which included 2 weekends, 10 days
2 weeks
Airmail takes a few days, surface mail may take over a month. Your choice.
yes if the place has a PostCode if is has none then it is airmail
The postage is $.98. You can send a letter for the same cost.
From Gibraltar to a London area airports (Stansted, Gatwick, Heathrow and Luton) takes on average 2 hours, 41 minutes
Most of the UK banks are represented in Gibraltar.
$2.10 if you buy a prepaid airmail letter from the postoffice... not sure how much an international stamp is if that's what you're asking. A postcard is $1.80, so i'd imagine $2.50-$3
Gibraltar is one hour ahead.
3-5 days to western europe i know from experience
Just sent one for £1.21. It was in a big envelope so a normal letter would probably be a few pennies less.