Roughly 10.5 hours spent in the air. Add time for layovers, etc.
4 hours
New York - London 7:00 London - New York 8:00
New Brunswick where?
Roughly 4 and a half hours.
4 hours 9 minutes
A typical flight between Dallas, TX and New Hampshire would have a flying time of about 3 hours, 6 minutes.
4 hours 33 minutes
Its 3 hours and 33 minutes.
If you are flying from Manchester, New Hampshire to London, Ontario - then you are flying internationally because New Hampshire is in the USA and Ontario is in Canada. Now if you meant London, England to Manchester, New Hampshire - well than that too is an international flight as England is part of the UK and not the USA. However, if you mean Manchester, England to London, Ontario - it is still an international flight. Canada is a commonwealth country and shares a queen with England - but it's no longer the same country. If for some odd reason, you meant Manchester, England to London, England - well they are both in England so unless you have a layover in Dublin or Paris, it would be a domestic flight.
flight time from London to yonkers, New York
How long is the flight from NH to Puerto Rico
It is approximately 70 minutes.