AirHint found the following cheapest return flights from Houston (IAH) to Keflavik (KEF)
in July 2025 (see full year ).
Return flights
29 Jul
- 05 Aug
Spirit Airlines
$ 567
30 Jul
- 06 Aug
Spirit Airlines
$ 567
09 Jul
- 21 Jul
Spirit Airlines
$ 578
23 Jul
- 30 Jul
Spirit Airlines
$ 619
17 Jul
- 24 Jul
Spirit Airlines
$ 637
25 Jul
- 01 Aug
Spirit Airlines
$ 672
26 Jul
- 02 Aug
Spirit Airlines
$ 674
31 Jul
- 07 Aug
WestJet
$ 678
20 Jul
- 31 Jul
Spirit Airlines
$ 680
21 Jul
- 28 Jul
Spirit Airlines
$ 689
28 Jul
- 04 Aug
Spirit Airlines
$ 689
18 Jul
- 25 Jul
Spirit Airlines
$ 692
22 Jul
- 29 Jul
Spirit Airlines
$ 721
24 Jul
- 31 Jul
Spirit Airlines
$ 735
20 Jul
- 27 Jul
Spirit Airlines
$ 749
27 Jul
- 03 Aug
Spirit Airlines
$ 751
19 Jul
- 26 Jul
Spirit Airlines
$ 835
Also check the deals for one-way flights from Houston to Keflavik in July .
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.