Runaway teacher Jeremy Forrest is due back in the UK after going on the run with his pupil, sources said.
The 30-year-old married amateur musician, from Ringmer, East Sussex, is understood to be at a French airport awaiting a flight.
More top news
The popular game relies on Google Maps, a problem in South Korea as those functions are limited by the government.
A Met Office warning covering much of England and south-east Wales is expected to remain in place until 11am.
A band of cloud and patchy rain is expected across Scotland and Northern Ireland, moving southeast as the day progresses.