Personally, I would remove #6 from this list and maybe replace it with Orlando and maybe swap out #3 with Burbank. But here’s the top 10 most on-time airports in the country: 1 – Salt Lake City 2 – Portland 3 – Washington DC 4 – Tampa 5 – Minneapolis 6 – Boston 7 – Phoenix 8 – Seattle 9 – Baltimore 10 – San Diego