Personally I fly the Swiss fleet. Is fly aerofly like a real airline and use Swiss, only fly out of zurich en Geneva en use there real routes and a/c so only the a320 and 777. So a not too long flight.
LHR-JFK (or any west European city to eastern us)
Poland to Tenerife.
And from Zurich, you can go to Boston, Newark, JFK, and if your not that bothered to Washington although its a former Swiss route