Take a corona test during the flight? This is exactly what the airline El Al wants to offer in the future and is starting a pilot test on the New York JFK-Tel Aviv route. The passengers should be able to be tested shortly before boarding or during the flight.
With a few exceptions, only its own citizens can currently enter Israel. Even fully vaccinated people must present a negative corona test or have themselves tested before leaving the airport at the latest. In any case, the bottom line is that two tests must be completed.
On the Boeing 787-9 El-Al flights from New York JFK to Israel, it should now be possible for the PCR smear to be given before boarding or during the flight. As a result, you don't have to take another test at Ben Gurion Airport. In particular, the carrier wants to save its passengers time.