For Omicron, with an incubation period of three days, one should expect negatives to turn positive with a transatlantic flight. Google suggests that it takes 1

For Omicron, with an incubation period of three days, one should expect negatives to turn positive with a transatlantic flight. Google suggests that it takes 10-12 hr to fly from NYC to Israel. That's a long time with a fast virus. (Even with a week's incubation period, you'd still expect to see it, just less.). Furthermore, many of those negative tests will have been 24-48 hr prior to takeoff, depending upon legal requirements that day. It's okay to suspect malice, but it may not be necessary here :).