In reply to Andy Manthorpe:
Done both, both have their stresses. Driving - take the ferry at a quiet time, stay outside on deck, (Or go via Holland and have your own cabin), unlikely any service stations will be that busy unless it’s a holiday weekend - anyway, by now, you know how not to catch covid, right? A lot of ever changing border rules to keep track of though - I had a spreadsheet, but that’s just me! Will a test that gets you into Europe still be valid if you need it to get into CZ?
Much the same advice for a flight, don’t fly with a packed budget airline, go at a quiet time, consider business class if you can afford it (more space). That said, I haven’t felt particularly uncomfortable on a plane, pretty much all but one idiot will be wearing a proper mask. Only one set of border requirements to meet. The airlines claim the air is recycled pretty sharpish.
Oh, and however you travel, make a concerted effort not to catch covid in the two weeks before you go!
Post edited at 21:37