I looked through my files and found surprisingly few combining snow on the ground and blue skies. One reason for that might be that the sun is not so common here in VT
as in ID
. Another reason, though, is that those conditions usually mean sun+cold which is a bad combination for heat haze, so maybe I have not ended up with many keepers in those conditions.
Assuming that you can avoid heat haze, though, you could just stay in aperture mode and let your shutter speed get faster, which should not do any real harm, especially with jets. You might find that you need to lower the exposure a bit as well; I did take a few shots this past week with blue skies and snow on the ground and I got the best results with the exposure lowered by 1/3 or 2/3 stop.