What is the cheapest month to fly from Kos to Porto?

Based on current 6-month forward fare data, October 2026 is the cheapest month to fly from Kos (KGS) to Porto (OPO), with fares starting from $159.

What is the lowest current fare from KGS to OPO?

The lowest currently-listed fare from Kos (KGS) to Porto (OPO) is $159 on 2026-10-08.

Is there a direct flight from Kos to Porto?

There is currently no non-stop service from KGS to OPO. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Kos to Porto

Cheapest current fares: $159 in October 2026 on connecting flights.

Last updated August 9, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Kos (KGS) to Porto (OPO). Refreshed daily.

Kos (KGS) → Porto (OPO)

October 2026 $159

Frequently asked questions

What is the cheapest month to fly from Kos to Porto?

Based on current 6-month forward fare data, October 2026 is the cheapest month to fly from Kos (KGS) to Porto (OPO), with fares starting from $159.
What is the lowest current fare from KGS to OPO?

The lowest currently-listed fare from Kos (KGS) to Porto (OPO) is $159 on 2026-10-08.
Is there a direct flight from Kos to Porto?

There is currently no non-stop service from KGS to OPO. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.