Thai Airways has two configurations of its Boeing 747-400 aircraft.

Some of these seat 389 passengers (14 first class, 50 business class and 325 economy), and others 375 passengers (10 in first class, 40 in business class and 325 in economy).

It should be noted here that some of the B747s do not feature Thai's newer economy, business and first class seating. As such there are no seat-back IFE screens in economy, only overhead screens. 

Please note:

• Thai Airways sometimes uses long-range aircraft on domestic, regional and other short haul flights, for example Bangkok to Singapore.

• Thai Airways is known to change its aircraft roster with very little notice, and out of line with the published timetabling. Unfortunately this makes it hard to predict which aircraft type you'll be on.

• Although these aircraft have first class cabins, these seats are not sold on short flights - online economy and business class fares are available.

 Seatplans.com recommends...

Business class: If you like having extra legroom, seats 23 E-F and exit row seats 22 A-B are good choices – note that the former are not by a window as there is a partition down the right-hand side of the business class cabin, and they have a very large IFE screen projected on to the bulkhead in front...