Cheapest one-way flights from Boston to Keflavik in January from $314

AirHint found the following cheapest one-way flights from Boston (BOS) to Keflavik (KEF) in January 2026 (see full year).

One-Way flights

12 Jan British Airways
12 Jan Icelandair direct
09 Jan Icelandair direct
23 Jan Lufthansa

Also check the deals for return flights from Boston to Keflavik in January.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.