http://www.evi.com/
It's more than a little Siri like. I like that fact that is explains how it gets answers. It chains facts together in a fairly smart way. The website is currently a dumbed down version of the mobile application. Mobile application is free on Android, £0.69 Mac Tax on iOS.
Whilst the app seems to answer a lot more things, the website does have other appeals.
nicely
spammed out optimised template there
http://www.evi.com/q/flight_time_from_london_to_new_york
QuoteTop ways people ask this question:
how long does it take to fly from london to new york (84%)
flying time between london and new york (8%)
how long does it take to fly from london to new york city (2%)
how long does it take to fly between london and new york (1%)
how long is the flight from london to new york (1%)
flight time london to new york (1%)
how long is the flight time from london to new york (1%)
Other ways this question is asked:
flying time london to new york
flight time between london and new york
how long does it take to fly from london to ny
flying time between london uk and new york
how many hours to fly to london from nyc
what is the flying time from london to new york
how long does a flight take from london to new york
how long does it take to fly from london england to new york
how long are flights from london to new york
how long do flights from london to new york take?
what is the flying time from london to new york, usa
how many hour flight from london to ny
whats the flying time from london to new york
how long is a flight from "London UK" to "New YorK"
http://www.evi.com/new-questions/100
...though I'd imagine they cleaned up pre-Panda but struggle these days.
Apparently they used to be known as True Knowledge - which rings a bell.
Legitimised keyword stuffing in its classic form ;D