Cheapest return flights from Austin to Keflavik in May from $668
AirHint found the following cheapest return flights from Austin (AUS) to Keflavik (KEF) in May 2025 (see full year).
Return flights
| 07 May - 13 May | Spirit Airlines | ||
| 11 May - 27 May | Spirit Airlines | ||
| 25 May - 01 Jun | Spirit Airlines | ||
| 16 May - 23 May | Virgin Atlantic |
Also check the deals for one-way flights from Austin to Keflavik in May.
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.
