What many people don’t know is that airlines often have what’s called a “fifth freedom” route wherein it does not start or end at one of their hub locations. Singapore Airlines has many of these continued flights around the world. Its flight from Houston<-> Moscow is a 777-300ER with a wonderful economy section. The seats are wider than usual for international economy and the service is excellent.
Right now there is a special deal for $399 round-trip economy on this flight. Check out The Points Guy for more information.