When you’re at the airport, fast WiFi is a necessity for many of us.

And so, which airport has the fastest WiFi?

If you’re flying out of Seattle-Tacoma, you’re in luck. Its WiFi has the fastest download speed of any airport in North America.

Other airports with true high speed WiFi include Calgary in Canada and Denver.

And which airports have the slowest download speeds? That would be Phoenix, Detroit, and Minneapolis.

But there may be good news, because most airport WiFi speeds increased last year with Atlanta’s Hartsfield-Jackson showing the most improvement.

Now, the hope is to make it not only fast but also free at all North American airports.