Crossword clues for the word: FLATRATE The word FLATRATE has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for FLATRATE Showing 1 to 8 of 8 results Clue(s) *Monthly charge for a London apartment? It's the same for all customers Like some etail shipping Price that doesn't vary: 2 wds. Unvarying charge Unvarying price Unvarying price per unit WATS pricing