AirHint found the following cheapest return flights from Houston (HOU) to Keflavik (KEF)
in May 2025 (see full year ).
Return flights
13 May
- 20 May
Spirit Airlines
$ 499
14 May
- 19 May
Spirit Airlines
$ 536
09 May
- 12 May
Spirit Airlines
$ 559
21 May
- 29 May
Spirit Airlines
$ 576
20 May
- 27 May
Spirit Airlines
$ 580
11 May
- 17 May
Spirit Airlines
$ 594
05 May
- 12 May
Spirit Airlines
$ 602
17 May
- 24 May
jetBlue
$ 639
19 May
- 27 May
Spirit Airlines
$ 659
29 May
- 05 Jun
Spirit Airlines
$ 675
30 May
- 07 Jun
Spirit Airlines
$ 676
31 May
- 07 Jun
Frontier Airlines
$ 703
28 May
- 05 Jun
WestJet
$ 711
30 May
- 06 Jun
Spirit Airlines
$ 720
20 May
- 28 May
Spirit Airlines
$ 747
29 May
- 06 Jun
Spirit Airlines
$ 749
26 May
- 03 Jun
Spirit Airlines
$ 763
28 May
- 04 Jun
United
$ 770
27 May
- 04 Jun
United
$ 770
25 May
- 02 Jun
Frontier Airlines
$ 772
Also check the deals for one-way flights from Houston 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.
