Cheap flights from Seoul to Bangkok from $150 GMP, ICN → BKK, DMK

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 $228 to $293.

At $310, the cheapest return found recently is above that range.

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

Could nearby dates be cheaper?

We hold no other 6-night return fares leaving within 3 days of 3 Dec to compare.

Every date we hold

1142 fares on 62 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $290.

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 $81 to $164.

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

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 13 Jul 2027 to compare.

Every date we hold

48 fares on 4 departure dates

Which month looks cheapest?

July 2027 is the cheapest month — from $134.

Return

Fares 180 or more days before departure were typically 18% 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

Not enough history yet: in 49 days of one-way prices, 24 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.

How much is a return flight from Seoul to Bangkok?

The cheapest return found recently is $310 with Shandong Airlines, 3 Dec to 9 Dec, found yesterday. The cheapest return we hold, of any age, is $290 with Shandong Airlines, 25 Nov to 1 Dec, found 4 days ago. The cheapest return fare on each of 62 departure dates is usually $321 to $361.

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

The cheapest one-way found recently is $150 with Thai Vietjet Air, 13 Jul 2027, found 4 days ago. The cheapest one-way we hold, of any age, is $134 with Thai Vietjet Air, 7 Jul 2027, found 6 days ago. The cheapest one-way fare on each of 4 departure dates is usually $141 to $178.

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

November 2026 is the cheapest month for a return, from $290, 25 Nov to 1 Dec, found 4 days ago. July 2027 is the cheapest month for a one-way, from $134, 7 Jul 2027, found 6 days ago.

Every date in November 2026

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 180 or more days before departure were typically 18% lower than 0 to 6 days before departure.

Is there a direct flight from Seoul to Bangkok?

Yes, the cheapest nonstop return found recently is $389 with Eastar Jet, 8 Dec to 22 Dec, found 2 days ago. The cheapest nonstop one-way found recently is $150 with Thai Vietjet Air, 13 Jul 2027, found 4 days ago.

Every nonstop date from Seoul to Bangkok

How long is the flight from Seoul to Bangkok?

The cheapest nonstop one-way found recently, with Thai Vietjet Air on 13 Jul 2027, takes 5 h 50 min from Incheon International Airport (ICN) to Suvarnabhumi Airport (BKK).

Which airlines have the cheapest flights from Seoul to Bangkok?

Between 16 Nov and 4 Oct 2027, Shandong Airlines has the cheapest return on 17 of the 62 departure dates we hold, China Eastern on 13 and Vietnam Airlines on 11. Between 3 Apr 2027 and 27 Aug 2027, Thai Vietjet Air has the cheapest one-way on 3 of the 4 departure dates we hold, and Korean Air on 1.