Today’s Icelandair deal is San Francisco to Copenhagen for $325 round trip for travel October to December 2018.
Icelandair flights between SFO and Iceland launched in June 2018. Like most USA airports with Icelandair, some of the best fare deals over the next year will likely be Icelandair tickets to Europe. There were SFO-London round trip tickets at $283 over the weekend. I purchased Icelandair SFO-LHR for $263 in late May for an October trip.
Icelandair San Francisco SFO – Reykjavik KEF – Copenhagen CPH – KEF – SFO