About five years ago I stumbled on an on online discussion board for Continental Airlines flight attendants where a junior crew member had asked for opinions about whether she should start to work their Newark-Tel Aviv route. The opinions were mostly positive, (the gist was that most flight attendants on the route did it for years and loved it but some couldn’t handle it, which made it no different than any other route the airline flew to a destination with a non-American culture) but one of the flight attendants pointed out that a difficulty on the route was that so many passengers requested special meals, which meant effectively that during meal times you were doing your job more than twice since on top of the regular service you had to give individual meals to about half of the plane.
These flight attendants are well aware of who orders those meals and why they’re being ordered and by choosing to fly this route, it seems pretty clear that they’re at least theoretically ok with Jews. A passenger on that plane who orders a kosher meal is certainly doing the ratzon Hashem. I have no doubt however that the way these people view Hashem and his Torah is significantly affected by whether or not their passengers behave while doing the ratzon Hashem.