[04/05/2019 @ 10:36 PM] Fare gone. Removing from deal list.
KLM, Air France, and Delta have round-trip flights from Houston (IAH) to Edinburgh (EDI) for $635-$645 with a connection. Flights in May, October, November, December, January, and February. Flight may operate as a SkyTeam codeshare.
Note: Flights operated by Delta are available for about -$40 cheaper, but most of those require either a ground transfer between a connecting airport or bad routing. You’ll probably want to avoid those.