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

Gimpo International Airport (GMP), Incheon International Airport (ICN) → Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK)

The cheapest nonstop return found recently is $389 with Eastar Jet, 8 Dec – 22 Dec, found 2 days ago.

Nonstop return

The cheapest nonstop return fare on each of 28 departure dates is usually $389 to $468.

Cheapest nonstop return

$389

8 Dec – 22 Dec · Eastar Jet

Incheon International Airport (ICN) → Suvarnabhumi Airport (BKK)

Leaves 5:05 p.m. · Return leaves 8:00 a.m. · 11 h 40 min of travel, both ways together

out nonstop, back nonstop · separate tickets likely: collect your bags and check in again

found 2 days ago

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Airlines flying it nonstop on the return fares we hold: T'way Air (22 departure dates), Air Premia (20 departure dates), THAI Airways (19 departure dates), Thai Vietjet Air (19 departure dates), Jeju Air (16 departure dates), Eastar Jet (7 departure dates), Korean Air (5 departure dates), Asiana Airlines (5 departure dates).

On the 56 trips where we hold both on the same dates, nonstop cost a median $124 (32.8%) more than the cheapest fare with stops. Nonstop was cheaper or the same price on 2 of those 56 trips.

Every nonstop date we hold

Nonstop fares on 28 of the 62 departure dates we hold for this route.

16 Nov – 17 Nov: $582, found 5 days ago21 Nov – 29 Nov: $556, found 7 days ago25 Nov – 1 Dec: $456, found 4 days ago27 Nov – 8 Dec: $480, found 5 days ago29 Nov – 8 Dec: $397, found 5 days ago2 Dec – 6 Dec: $478, found 6 days ago3 Dec – 9 Dec: $447, found yesterday7 Dec – 13 Dec: $409, found 3 days ago8 Dec – 22 Dec: $389, found 2 days ago11 Dec – 18 Dec: $452, found 4 days ago12 Dec – 5 Jan 2027: $449, found 6 days ago20 Dec – 10 Jan 2027: $515, found 2 days ago21 Dec – 11 Jan 2027: $393, found 4 days ago25 Dec – 15 Jan 2027: $463, found 7 days ago31 Dec – 9 Jan 2027: $464, found 6 days ago3 Jan 2027 – 27 Jan 2027: $585, found 5 days ago4 Jan 2027 – 21 Jan 2027: $449, found 2 days ago11 Jan 2027 – 27 Jan 2027: $389, found 6 days ago12 Jan 2027 – 31 Jan 2027: $494, found 5 days ago14 Jan 2027 – 2 Feb 2027: $404, found 2 days ago27 Jan 2027 – 3 Feb 2027: $389, found 4 days ago28 Jan 2027 – 3 Feb 2027: $378, found 4 days ago14 Feb 2027 – 28 Feb 2027: $391, found 2 days ago27 Feb 2027 – 3 Mar 2027: $379, found 4 days ago26 Mar 2027 – 4 Apr 2027: $389, found 7 days ago14 Jun 2027 – 2 Jul 2027: $342, found 8 days ago31 Jul 2027 – 7 Aug 2027: $439, found 4 days ago22 Aug 2027 – 28 Aug 2027: $295, found 3 days agoNovDecJanFebAug
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
16 Nov – 17 Nov$582Air PremiaIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
21 Nov – 29 Nov$556T'way AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
25 Nov – 1 Dec$456T'way AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
27 Nov – 8 Dec$480T'way AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
29 Nov – 8 Dec$397Jeju AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
2 Dec – 6 Dec$478T'way AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
3 Dec – 9 Dec$447Thai Vietjet AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound yesterdaySee prices for these dates
7 Dec – 13 Dec$409Eastar JetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 3 days agoSee prices for these dates
8 Dec – 22 Dec$389Eastar JetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
11 Dec – 18 Dec$452T'way AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
12 Dec – 5 Jan 2027$449Jeju AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
20 Dec – 10 Jan 2027$515Jeju AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
21 Dec – 11 Jan 2027$393AjetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
25 Dec – 15 Jan 2027$463AjetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
31 Dec – 9 Jan 2027$464AjetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
3 Jan 2027 – 27 Jan 2027$585T'way AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
4 Jan 2027 – 21 Jan 2027$449AjetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
11 Jan 2027 – 27 Jan 2027$389AjetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 6 days agoSee prices for these dates
12 Jan 2027 – 31 Jan 2027$494Air PremiaIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 5 days agoSee prices for these dates
14 Jan 2027 – 2 Feb 2027$404AjetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
27 Jan 2027 – 3 Feb 2027$389AjetIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
28 Jan 2027 – 3 Feb 2027$378Jeju AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
14 Feb 2027 – 28 Feb 2027$391THAI AirwaysIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 2 days agoSee prices for these dates
27 Feb 2027 – 3 Mar 2027$379Jin AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
26 Mar 2027 – 4 Apr 2027$389THAI AirwaysIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 7 days agoSee prices for these dates
14 Jun 2027 – 2 Jul 2027$342Air PremiaIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 8 days agoSee prices for these dates
31 Jul 2027 – 7 Aug 2027$439Thai Vietjet AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 4 days agoSee prices for these dates
22 Aug 2027 – 28 Aug 2027$295Thai Vietjet AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)out nonstop, back nonstopfound 3 days agoSee prices for these dates

Nonstop one-way

The cheapest nonstop one-way fare on each of 3 departure dates is usually $139 to $147.

Cheapest nonstop one-way

$150

13 Jul 2027 · Thai Vietjet Air

Incheon International Airport (ICN) → Suvarnabhumi Airport (BKK)

Leaves 10:10 a.m. · 5 h 50 min trip

nonstop

found 4 days ago

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Airlines flying it nonstop on the one-way fares we hold: Thai Vietjet Air (3 departure dates), Air Premia (2 departure dates), THAI Airways (1 departure date).

We hold too few one-way trips with both a nonstop fare and a fare with stops on the same dates to compare the two.

Every nonstop date we hold

Nonstop fares on 3 of the 4 departure dates we hold for this route.

7 Jul 2027: $134, found 6 days ago13 Jul 2027: $150, found 4 days ago27 Aug 2027: $143, found 6 days agoJulAug
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
7 Jul 2027$134Thai Vietjet AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)nonstopfound 6 days agoOpen this trip
13 Jul 2027$150Thai Vietjet AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)nonstopfound 4 days agoOpen this trip
27 Aug 2027$143Thai Vietjet AirIncheon International Airport (ICN) → Suvarnabhumi Airport (BKK)nonstopfound 6 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work