In flight
Up
Up adverb - Spatially or metaphorically from a lower to a higher position.
Cite this Source
Up and In flight. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/in_flight/up
In flight & Up. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/in_flight/up>.
Up or In flight. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/in_flight/up.
Google Ngram Viewer shows how "in flight" and "up" have occurred on timeline