Definitions:

1. (of a journey especially a flight) occurring without stops adjective
   • a nonstop flight to Atlanta
2. a flight made without intermediate stops between source and destination noun
   • how many nonstops are there to Dallas?
3. without stopping adverb
   • we are flying nonstop form New York to Tokyo

Synonyms:

• always
• around-the-clock
• day-and-night
• e'er
• ever
• nonstop flight
• round the clock
• round-the-clock