AirHint found the following cheapest one-way flights from Portland (PDX) to Keflavik (KEF) in July 2025 (see full year).
One-Way flights
| 17 Jul | Spirit Airlines | ||
| 14 Jul | Spirit Airlines | ||
| 02 Jul | Allegiant Air | ||
| 17 Jul | Icelandair | direct | |
| 14 Jul | Icelandair | direct | |
| 02 Jul | Icelandair | direct |
Also check the deals for return 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.
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