Synonyms to on the wing

in passing, a propos, along the way, amain, apace, apropos, apropos of, as one goes, at once, by forced marches, by the by, by the way, cursorily, en passant, en route, expeditiously, feverishly, for example, furiously, hand over fist, hastily, helter-skelter, hotfoot, hurriedly, hurry-scurry, immediately, in mid-progress, in transit, in transitu, incidentally, instantly, on the road, on the run, on the way, par exemple, parenthetically, pell-mell, promptly, quickly, slapdash, speaking of, speedily, superficially, swiftly, with a rush, with all haste, with dispatch, with haste, on the go, astir, at it, at work, busy, employed, engaged, full of business, hard at it, hard at work, in harness, in motion, occupied, on duty, on the bum, on the gad, on the hop, on the job, on the jump, on the move, on the tramp, tied up, under sail, under way, working, on the