Go to the Arctic or Antarctic in their respective summers, and it’s always day. And you can time the flight between to stay in day.
Alternatively, rocket to the L1 Lagrange point between the Earth and Sun and just stay there. The orbit is metastable, so that’s practical.
Flying in a circle around the Earth in the vicinity of the Arctic or Antarctic circles (cutting through Norway, Finland such) would require flying at about the Concorde’s top speed.
Go to the Arctic or Antarctic in their respective summers, and it’s always day. And you can time the flight between to stay in day.
Alternatively, rocket to the L1 Lagrange point between the Earth and Sun and just stay there. The orbit is metastable, so that’s practical.
Flying in a circle around the Earth in the vicinity of the Arctic or Antarctic circles (cutting through Norway, Finland such) would require flying at about the Concorde’s top speed.