How much is a ticket from Lisbon to Warsaw?

The cheapest price found today is $53.

When is it cheaper to fly?

Cheapest month is December — from $53.

Cheapest today — $53. Below is what booking services offer.

Departure	Airline	Stops	Price
Dec 14	Ryanair	direct	$53	View
Jan 9	Ryanair	direct	$58	View
Dec 26	Ryanair	direct	$61	View
Dec 15	Wizz Air	direct	$62	View
Dec 10	Wizz Air	direct	$63	View
Nov 5	Wizz Air	direct	$63	View
Nov 7	Wizz Air	direct	$65	View
Oct 8	Vueling	1	$67	View
Nov 21	Ryanair	direct	$67	View
Nov 16	Ryanair	direct	$67	View

How much is a ticket from Lisbon to Warsaw?: The cheapest price found today is $53.
When is it cheaper to fly?: Cheapest month is December — from $53.

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