Roundtrip Nonstop Flights from Washington DC (IAD) to Reykjavik, Iceland (KEF) ~$321 (Travel late-Sept to March, 2026)

Roundtrip Nonstop Flights from Washington DC (IAD) to Reykjavik, Iceland (KEF) for $320. These are basic economy fares that allow a personal item and a carry-on bag. Travel availability includes various dates from late September to March 2026. To book this deal, use dates and book flights with Booking.com. Flights can also be booked directly with Icelandair.