How much is a ticket from Tokyo to Seoul?

The cheapest price found today is $87.

When is it cheaper to fly?

Cheapest month is September — from $87.

Cheapest today — $87. Below is what booking services offer.

Departure	Airline	Stops	Price
Sep 25	ZIPAIR	direct	$87	View
Sep 29	ZIPAIR	direct	$94	View
Sep 24	Eastar Jet	direct	$95	View
Oct 1	Jeju Air	direct	$99	View
Sep 30	ZIPAIR	direct	$105	View
Sep 23	Jeju Air	direct	$106	View
Sep 2	T'way Air	direct	$106	View
Sep 22	ZIPAIR	direct	$106	View
Aug 20	Jeju Air	direct	$107	View
Aug 31	T'way Air	direct	$107	View

How much is a ticket from Tokyo to Seoul?: The cheapest price found today is $87.
When is it cheaper to fly?: Cheapest month is September — from $87.

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