http://www.guampdn.com/story/news/20...ice/675726001/
* Japan's outbound tourism continues to dwindle.
* Last DL GUM route is NRT, last flight 2018-01-08.
* DL continues to fly NRT-SPN and NRT-ROR.
* NW has been flying GUM (always from Japan) since 1980s, post PA retreat.
* GUM-US market will be solely served by UA, unless people buy separate tickets on foreign carriers.
May I add:
* UA serves SPN only with UA Express/Cape Air.
* UA/CO has always been (since 1990s or earlier) the sole carrier for those US-GUM/SPN travelers without passports (GUM-HNL).
* NW once had an Airlink carrier flying between GUM/ROP/TIQ/SPN while mainline served GUM/SPN.