United is now making menus for in-flight meal service available through the website and app.
On the website click on "flight status" and enter the flight number and hit search, then click "view details" or "amenities". When the details come up click on or scroll down to "aircraft" then click on "inflight amenities". You'll then see inflight menu and a link to go the the menu.
On the app click "flight status" and enter the flight number and hit search. When the details come up, scroll down and you'll see "inflight menu - new". Click on that and you'll see menus for economy, premium and first.