until then

until then

1. From now until some established future point in time. We should have the issue resolved by next week. Until then, don't breathe a word about it to the media.
2. A casual phrase of farewell, said when another future meeting has already been established or agreed upon. A: "This all looks great so far, Janet. We'll go over the finer details on Monday." B: "Thanks, Sarah. Until then!"
See also: until
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

(Good-bye) until then.

 and (Good-bye) till then.; (Good-bye) till later.; (Good-bye) until later.
Good-bye until sometime in the future. Sally: See you tomorrow. Good-bye until then. Sue: Sure thing. See you. Mary: See you later. Bob: Until later. The announcer always ended by saying, "Be with us again next week at this time. Good-bye until then."
See also: until
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also:
References in periodicals archive ?
"Up until then, I had always worked at small luxury hotels," a q uality Carter considers part of the package.
Not only is the honorary degree highly regarded among the great French masters; but, until then, the award was reserved for French chefs.
"Until then, organic certification applied to stores, processing plants, and farmers," Pouillon explains.