How much is a ticket from Amsterdam to Porto?

The cheapest price found today is $102.

When is it cheaper to fly?

Cheapest month is October — from $102.

Cheapest today — $102. Below is what booking services offer.

Departure	Airline	Stops	Price
Oct 27	Transavia	direct	$102	View
Oct 21	Transavia	direct	$103	View
Nov 8	Transavia	direct	$108	View
Oct 6	Transavia	direct	$109	View
Sep 16	Ryanair	2	$110	View
Oct 4	Transavia	direct	$112	View
Oct 7	Transavia	direct	$115	View
Oct 5	Transavia	direct	$118	View
Oct 3	Transavia	direct	$122	View
Sep 8	Ryanair	2	$126	View

How much is a ticket from Amsterdam to Porto?: The cheapest price found today is $102.
When is it cheaper to fly?: Cheapest month is October — from $102.

Links to booking services are affiliate links. The price stays the same for you.