Yes, Arashi will once again be soaring in the Japanese sky. ^^

Arashi's faces will grace the body of Boeing 777-200 flying the domestic routes only.
(What a shame... They should collaborate with Japan Tourism and fly worldwide with the cat ^^;)

Not just one plane, but two! Two Arashi JETS! Both will have the same design. ^^V

JAL Arashi JET 1: 25 July ~ 30 September 2011
Airports: Tokyo (Haneda), Fukuoka, Sapporo (Chitose, New Chitose Airport), Osaka (Osaka International - Itami) and Okinawa (Naha).

JAL Arashi JET 2: 26 July 2011 ~ January 2012 (tentative)
To be updated.

Flight schedule here:

In conjunction with their current Natsu Tabi (Summer Trip) campaign, there are two JAL Arashi JET prizes to be won.
Prizes: Arashi JET model plane and Arashi JET mascot strap.  
Campaign ends 11 September 2011.

The Arashi JET has yet to be unveiled (at time I'm writing this). Perhaps later during the concert? Just like they did last year. ^o^
Can't wait to see it. First flight is tomorrow~

~~~
Edit:
The plane has 'ARASHI Beautiful World' plastered on it.
The second plane is commissioned with the concept of encouraging travel demands to help with the revival of the disaster-affected areas.

Feel free to post a picture of the plane if you have it. ^^