AirHint found the following cheapest return flights from Chicago (ORD) to Keflavik (KEF)
in May 2025 (see full year ).
Return flights
29 May
- 03 Jun
Spirit Airlines
$ 502
28 May
- 03 Jun
Icelandair
$ 538
direct
29 May
- 03 Jun
Icelandair
$ 545
direct
29 May
- 04 Jun
Icelandair
$ 545
direct
29 May
- 09 Jun
Icelandair
$ 545
direct
31 May
- 11 Jun
Icelandair
$ 545
direct
26 May
- 04 Jun
Icelandair
$ 546
direct
27 May
- 04 Jun
Icelandair
$ 547
direct
31 May
- 07 Jun
Icelandair
$ 576
direct
28 May
- 02 Jun
Spirit Airlines
$ 581
25 May
- 30 May
Spirit Airlines
$ 603
23 May
- 29 May
United
$ 607
direct
23 May
- 25 May
United
$ 612
direct
23 May
- 31 May
United
$ 612
direct
17 May
- 22 May
Spirit Airlines
$ 615
13 May
- 19 May
jetBlue
$ 627
19 May
- 24 May
jetBlue
$ 630
11 May
- 19 May
jetBlue
$ 655
14 May
- 21 May
Spirit Airlines
$ 664
12 May
- 19 May
Spirit Airlines
$ 666
Also check the deals for one-way flights from Chicago 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.
