The phrase "a hard flight" is correct and usable in written English.
It can be used to describe a flight that is difficult or challenging, either due to turbulence, delays, or other factors.
Example: "After experiencing a hard flight filled with turbulence, we were relieved to finally land safely."
Alternatives: "a tough flight" or "a challenging flight".
So I want to make a note in his family tree: On one sad night, a hard-working flight attendant and an exhausted work colleague both claimed him as a brother, whether he remembers it or not.
However, in the US, a hard lobby by flight attendants wants to ban in-flight calls completely, despite the fact that consumer survey's demand the opposite.
So instead of a hard deadline, Secure Flight is being rolled out, airline by airline, over the next year or so.
Other calls include a korrkorrkorr given at the nest by anxious or excited birds, and a hard wep wep in flight.
Some of my colleagues do give me a hard time sometimes when flights are really late or canceled.
But with a major industry conference the National Association of Real Estate Investment Trusts–set for next week in New York, analysts believe that news of a hard deal involving top-flight firms, rather than the speculation that has run rampant in the industry, could steady trading going forward.
Often they eat mollusks, whose hard shells they crack by flying over a hard surface and dropping them in flight.
I wonder who might have a hard time simply getting a flight.
During the conceptual design phase, classical and new design procedures were developed in order to determine the vehicle design requirements, in relation to its flight in a hard scenario like an active volcano.
The next day, the committee staff director wrote to OGE staff, "I'm sorry to have missed this yesterday...the Chairman's scheduled was backed up with a hard stop for a return flight home".
