It's true that we have several active airports (commercial, general, military, and mixed use) all within or very near the city limits, but they seem to do a good job of keeping things separated since I've only ever witnessed one potentially alarming mixed traffic event that was many years ago (B52 almost landing at SAT). We do have MIL and FR helicopters that cross over active runways at SAT, which looks dangerous at first glance but I think that's SOP for major airports. I'm not trying to say we're perfectly safe but our roads are much more dangerous than anything I've seen at our airports and bases.
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If you mostly fly between mountains, deserts, and plateaus, airports like BOS and LGA are kind of fascinating by comparison, but I think my favorite over-water US landing experience are the dual touchdowns at SFO.