Cheap flights from Seoul to Osaka from $62 GMP, ICN → ITM, KIX, UKB

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $120 to $169.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 7-night return fares leaving within 3 days of 2 Dec to compare.

Every date we hold

897 fares on 71 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $144.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $34 to $70.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold one-way fares on 2 other departure dates within 3 days of 22 Dec, and none is cheaper.

Every date we hold

320 fares on 56 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $51.

Return

Fares 30 to 59 days before departure were typically 10% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

The cheapest fares were 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Seoul to Osaka?

The cheapest return found recently is $156 with Peach, 2 Dec to 9 Dec, found yesterday. The cheapest return we hold, of any age, is $144 with Peach, 1 Dec to 9 Dec, found 7 days ago. The cheapest return fare on each of 71 departure dates is usually $208 to $280.

How much is a one-way flight from Seoul to Osaka?

The cheapest one-way found recently is $62 with Peach, 22 Dec, found 2 days ago. The cheapest one-way we hold, of any age, is $51 with Peach, 8 Dec, found 5 days ago. The cheapest one-way fare on each of 56 departure dates is usually $74 to $135.

What is the cheapest month to fly from Seoul to Osaka?

December 2026 is the cheapest month for a return, from $144, 1 Dec to 9 Dec, found 7 days ago. It is the cheapest month for a one-way too, from $51, 8 Dec, found 5 days ago.

Every date in December 2026

How far ahead should I book a flight from Seoul to Osaka?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 10% lower than 0 to 6 days before departure. One-way fares were cheapest 0 to 6 days before departure.

Is there a direct flight from Seoul to Osaka?

Yes, the cheapest nonstop return found recently is $156 with Peach, 2 Dec to 9 Dec, found yesterday. The cheapest nonstop one-way found recently is $62 with Peach, 22 Dec, found 2 days ago.

How long is the flight from Seoul to Osaka?

The cheapest nonstop one-way found recently, with Peach on 22 Dec, takes 1 h 45 min from Gimpo International Airport (GMP) to Kansai International Airport (KIX).

Which airlines have the cheapest flights from Seoul to Osaka?

Between 13 Nov and 2 Jun 2027, Peach has the cheapest return on 41 of the 71 departure dates we hold, Jeju Air on 5 and T'way Air on 5. Between 17 Nov and 27 Oct 2027, Peach has the cheapest one-way on 36 of the 56 departure dates we hold, Korean Air on 10 and Eastar Jet on 6.