AirHint found the following cheapest return flights from Portland (PDX) to Keflavik (KEF)
in July 2025 (see full year ).
Return flights
14 Jul
- 23 Jul
Icelandair
743 €
direct
20 Jul
- 30 Jul
Icelandair
758 €
direct
27 Jul
- 06 Aug
Icelandair
758 €
direct
24 Jul
- 08 Aug
Icelandair
782 €
direct
22 Jul
- 30 Jul
jetBlue
783 €
09 Jul
- 16 Jul
jetBlue
792 €
31 Jul
- 10 Aug
Icelandair
797 €
direct
30 Jul
- 09 Aug
Icelandair
804 €
direct
15 Jul
- 26 Jul
jetBlue
817 €
01 Jul
- 09 Jul
jetBlue
828 €
24 Jul
- 03 Aug
Icelandair
831 €
direct
20 Jul
- 29 Jul
Icelandair
837 €
direct
18 Jul
- 27 Jul
Icelandair
843 €
direct
06 Jul
- 16 Jul
Icelandair
843 €
direct
25 Jul
- 09 Aug
Icelandair
845 €
direct
25 Jul
- 03 Aug
Icelandair
845 €
direct
04 Jul
- 10 Jul
Icelandair
852 €
direct
23 Jul
- 02 Aug
Icelandair
882 €
direct
29 Jul
- 04 Aug
jetBlue
905 €
29 Jul
- 09 Aug
Alaska Airlines
917 €
Also check the deals for one-way flights from Portland 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.