AirHint found the following cheapest return flights from Houston (HOU) to Keflavik (KEF) in January 2026 (see full year).

Return flights

22 Jan - 30 Jan	British Airways
24 Jan - 01 Feb	British Airways
29 Jan - 06 Feb	British Airways
31 Jan - 08 Feb	British Airways
26 Jan - 03 Feb	Lufthansa
28 Jan - 05 Feb	Turkish Airlines
21 Jan - 29 Jan	Turkish Airlines
25 Jan - 02 Feb	jetBlue
23 Jan - 31 Jan	Emirates
20 Jan - 28 Jan	Emirates
27 Jan - 04 Feb	Emirates
30 Jan - 07 Feb	Emirates

Also check the deals for one-way flights from Houston to Keflavik in January.

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

Cheapest return flights from Houston to Keflavik in January from $705

Return flights