In the late evening of 14 May 2021, the ISS passed over Vulture1957 in El Reno OK at 22:01:23 at 89° above the horizon at a brightness of -3.9. It continued NE and passed over TheHostas in Holland MI at 23:04:31 (89° and -3.9) and Picarax in Brunete Spain at 05:20:25 (59° and -3.2). From El Reno OK to Holland MI is 895 miles, and Holland to Brunete Spain is 4544 miles; for a total El Reno OK to Brunete Spain of 19 min 2 secs of ISS flight time, and 5439.5 miles.
Conditions in El Reno: 65°F, partly clear skies, wind 16 mph, no visible moon.
I was watching the ISS to do a visit to the expected ISS Sighting waymark that Max and 99 were going to make with TheHostas and Picarax, but Max and 99 got clouded out and didn't see it, so I took over as the Oklahoma part of the 3-way ISS sighting. I was up and just waiting on time to view the ISS, I walked the dog to the Oklahoma Trap and Skeet Club to get a nice, unobstructed view of the sky. It took a little while for me to pick out the ISS from the light clouds to the southwest, but I locked on at about 40° above the horizon. I watched the ISS pass from the SW running almost directly overhead at it's zenith, and continuing to the NE until I lost it in the city lights and haze at about 35°. I had a good night to view it, clouds only to the southwest, light winds, and warm temps.