Which airlines have a 2-4-2 configuration in Economy on the 787?

Which airlines have a 2-4-2 configuration in Economy on the 787?

I can name 3 only. Japan Airlines (previously JAL), ANA and Air India...

Try seat guru by trip advisor, however I thought the answer to your question was none.

Oops, JAL & ANA :-)

Air India too - if I'm out of date tell me.

Air India is 9 abreast, and ANA have already announced that they're converting to 9 abreast across the entire fleet as well. It's only a matter of time before JL follows :(

Ah. My mistake. Apologies.

Unfortunately it would seem all airlines will be going to 9 abreast, correct me if I'm wrong but will this make each seat width narrower than those on a A330?   I understand a 787 is only some 6inches or so wider than an A330 and will be carrying an extra seat in this slightly wider cabin ??  

All airlines with 787's have configurations with 9 abrest, or plans to go 9 abrests in Economy. The only airlines to not have 9 abrest from the factory was JAL and ANA, and both are moving towards this 'norm'.

No, JAL is staying where it is.

Hopefully.

Not According to this seatmap on their webiste:
http://www.jalflyer.com/2013/07/ana-introduces-premium-economy-and-9.html
 

That's ANA.

I reckon JAL will keep 2-4-2 as its focusing on more room in Y. Their latest Y has 34' pitch and 18.5' width. 

Mick9 you are correct, 787 is  18' (5.49m) internally; A330 is 17'4" (5.28m), so only 6 inches difference, and they do squeeze in an extra seat. Was very suprised to see the boss of Jetstar saying that the 787 would offer "comparable comfort" to the A330: which would you prefer to fly in? The A330 where half the passengers can have  a seat pair (2-4-2 - always better in a pair even if on your own), wider aisles, and  nearly an inch more legroom. Jetstar's 787 has everyone in 3's (3-3-3), with narrower seats and aisles, and less seat pitch. Not something for 9 hours, but it does mean cheap tickets. 

 Interesting to see what hapens with A350 - from published figures its cabin is only 4.8 inches wider than 787 (18.4 feet) c/w B777 which is 19.3  feet. Airbus have been proposing 8, 9, and even 10 across in this space. Given that 10 across in a 777 is tight, imagine that with an 11 inch narrow cabin! Despite Airbus' current "18 inches is the minimum" campaign, I am sure an airline will take them up on the 10 across.

You have a greater chance of having a empty seat next to you in a 3-3-3 configuration (up to 66% of seats can be filled before middle seats have to be used, compared to 2-4-2 where only 50% of seats can be filled before people have to start sitting immediately next to each other). 

And there shouldn't be much difference between the 787 and A330 aside from the fraction of an inch of width that's disappeared. Pitch is 31" on both (with slimmer seats on the 787 which should mean a tiny bit more knee room), while the 787 offers larger windows, increased humidity etc which makes more of a difference than you think. 

But I'll stick to Qantas please.

I suppose the seat on the 787 will only be an inch or so narrower than those on the A330 but when flying "sardine class" every little bit of real estate counts.   I have flown 9 abreast on an A330 with AirAsia and will not be repeating that any time soon no matter how cheap the flight is.   I just hope the Airlines do not take up the 10 abreast option on the A350 - it will certainly take the shine off that holiday !!