United and Delta drop their nonstop fares from Los Angeles to Tokyo to $699 round trip for travel into April 2016. These are close to the lowest fares I recall for 2015. The lowest fare on this route to Tokyo I have seen for 2015 is today’s $515 round trip fare on Skyteam airline China Eastern.
China Eastern Los Angeles LAX – Shanghai PVG – Tokyo NRT
$514.10 Monday, September 7 – Tuesday, September 15
Star Alliance member Air China has LAX-PEK-NRT for these same dates at $590. Most low fare dates with Air China are posted at $660. At that price, you might as well go with a nonstop on United or ANA for $40 more. One good week for Air China flights is when they will fly you to Tokyo over Thanksgiving week in November for $660. United and ANA are $800.
United Airlines Los Angeles LAX – Tokyo NRT nonstop
$698.10 Monday October 5 – Tuesday, October 13, 2015
Delta Airlines also offers nonstop flights LAX – NRT for $698.