Times zones, duration of flights, your seat number on the plane and many other things affect our comfort during a flight. Do you want to check-in your seats by knowing the plane model and seat plan beforehand?
Then SeatGuru.com is for you. This website is actually owned by Trip advisor and it shows airline seat maps, flight information, seat width, seat advice, user comments and photos, in-flight services so you can choose your seat easily.
You can search by airline companies, flight number and route. You can use this website before buying your long flight tickets. It is a great resource for savvy flyers and travelers.