This website is quite helpful, however, be careful with the little faces shown. We were trying for the CDG-SEA two summers ago and the site had an oragne face on it (the day before). We showed up to the airport the flight was over in coach. We got on the flight thanks to some misconnets. If the flight shows a red or orange face that means flight most prob is at capacoty or over in coach.

Regards,

Chepos