The phrase 'bumpy flight' is correct and usable in written English.
You can use it to describe a flight where the turbulence is not smooth. For example: "The flight to Rome was a bumpy one, and I was surprised to learn that the turbulence had been unexpected."
Over the short term, it's a bumpy flight.
Nervous fliers might find someone to take their mind off a long or bumpy flight.
I booked my ticket this morning at 7, and it was an incredibly bumpy flight".
The small plane they had chartered at Teterboro, N.J., touched down after an unexpectedly bumpy flight.
The little propeller plane was descending through fluffy clouds after what must have been a bumpy flight.
It was a blazing hot July afternoon when we arrived at Kennedy Airport after a long, bumpy flight.
This past August, knowing I would soon have the great joy of traveling through Sri Lanka, but fearing bumpy flights in and out of Colombo during the southwest monsoon season, I secured a prescription for a couple of scopolamine ear patches.
These meetings are the tonic needed after two bumpy flights or two days on a gut wrenching bus from Kathmandu.
"Besides really bumpy flights where you can't get any work done, what kinds of things really bug you?" I asked, pretending that I didn't already know that leaving the lights on, failing to run the disposal and leaving the toothpaste cap off the tube drove him nuts.
After a bumpy Aerosvit flight, I arrived ragged to a crumbling, yet beautiful, wine-obsessed country at the precipice of viticultural modernization.
The film's ability to soar so high so quickly and keep its wings steady should not be overlooked; comedy is often much too bumpy a flight.
