How much is a ticket from London to Paris?

The cheapest price found today is $31.

When is it cheaper to fly?

Cheapest month is September — from $31.

Cheapest today — $31. Below is what booking services offer.

Departure	Airline	Stops	Price
Sep 14	easyJet	direct	$31	View
Sep 21	easyJet	direct	$31	View
Sep 16	easyJet	direct	$31	View
Sep 22	easyJet	direct	$32	View
Sep 29	easyJet	direct	$32	View
Sep 27	easyJet	direct	$32	View
Sep 19	easyJet	direct	$32	View
Nov 9	Vueling	direct	$32	View
Oct 15	Vueling	direct	$32	View
Sep 28	easyJet	direct	$33	View

How much is a ticket from London to Paris?: The cheapest price found today is $31.
When is it cheaper to fly?: Cheapest month is September — from $31.

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