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Cheap flights from Seoul Gimpo Intl Airport to Bangkok from $142

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul Gimpo Intl Airport to Bangkok departing on 7/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seoul Gimpo Intl Airport to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$264Jeju Air
Mon, Jul 20 - Thu, Jul 23
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$270Jeju Air
Sat, Jul 18 - Tue, Jul 21
Air China Logo
2:25 pm - 12:10 am
GMP
-
BKK
11h 45m
1 stop
Air China Logo
1:30 am - 1:05 pm
BKK
-
GMP
9h 35m
1 stop
$271Air China
Mon, Oct 12 - Fri, Oct 23
Air China Logo
2:25 pm - 12:10 am
GMP
-
BKK
11h 45m
1 stop
Air China Logo
1:30 am - 1:05 pm
BKK
-
GMP
9h 35m
1 stop
$278Air China
Mon, Oct 12 - Sat, Oct 24
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$280Jeju Air
Fri, Jul 17 - Sun, Jul 19
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$283Jeju Air
Fri, Jul 17 - Sun, Jul 19
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$284Jeju Air
Mon, Jul 20 - Wed, Jul 22
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$285Jeju Air
Wed, Jul 22 - Sun, Jul 26
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$286Jeju Air
Wed, Jul 22 - Sun, Jul 26
Jeju Air Logo
7:55 pm - 11:50 pm
GMP
-
BKK
29h 55m
1 stop
Jeju Air Logo
12:50 am - 8:15 am
BKK
-
GMP
29h 25m
1 stop
$287Jeju Air
Tue, Jul 21 - Sun, Jul 26

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China Eastern flights from Seoul Gimpo Intl Airport to Bangkok

Our best China Eastern deals on Seoul Gimpo Intl Airport to Bangkok flight tickets
China Eastern
Jul 7
GMP12:00 pmSeoul Gimpo Intl
10h 55m
1 stop
BKK8:55 pmBangkok Suvarnabhumi
Jul 20
BKK9:55 pmBangkok Suvarnabhumi
11h 05m
1 stop
GMP11:00 amSeoul Gimpo Intl
$362
China Eastern
Jul 14
GMP12:00 pmSeoul Gimpo Intl
10h 55m
1 stop
BKK8:55 pmBangkok Suvarnabhumi
Jul 19
BKK7:10 pmBangkok Suvarnabhumi
13h 50m
1 stop
GMP11:00 amSeoul Gimpo Intl
$363
China Eastern
Jul 7
GMP12:00 pmSeoul Gimpo Intl
10h 55m
1 stop
BKK8:55 pmBangkok Suvarnabhumi
Jul 19
BKK3:55 pmBangkok Suvarnabhumi
17h 05m
2 stops
GMP11:00 amSeoul Gimpo Intl
$369

Air China flights from Seoul Gimpo Intl Airport to Bangkok

Our best Air China deals on Seoul Gimpo Intl Airport to Bangkok flight tickets
Air China
Oct 12
GMP2:25 pmSeoul Gimpo Intl
11h 45m
1 stop
BKK12:10 amBangkok Suvarnabhumi
Oct 23
BKK1:30 amBangkok Suvarnabhumi
9h 35m
1 stop
GMP1:05 pmSeoul Gimpo Intl
$271
Air China
Oct 12
GMP2:25 pmSeoul Gimpo Intl
11h 45m
1 stop
BKK12:10 amBangkok Suvarnabhumi
Oct 24
BKK1:30 amBangkok Suvarnabhumi
9h 35m
1 stop
GMP1:05 pmSeoul Gimpo Intl
$278

momondo Fare Finder

 
Customize your flight search to find flights from Seoul Gimpo Intl Airport to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 2, 2026.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Mon 7/20

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Thu 7/23

12:50 am-8:15 am

1 stop29h 25m

$264

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Sat 7/18

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Tue 7/21

12:50 am-8:15 am

1 stop29h 25m

$270
Quickest round-trip

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Mon 10/12

2:25 pm-12:10 am

1 stop11h 45m

Bangkok Suvarnabhumi

Fri 10/23

1:30 am-1:05 pm

1 stop9h 35m

$271

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Mon 10/12

2:25 pm-12:10 am

1 stop11h 45m

Bangkok Suvarnabhumi

Sat 10/24

1:30 am-1:05 pm

1 stop9h 35m

$278

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Fri 7/17

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Sun 7/19

12:50 am-8:15 am

1 stop29h 25m

$280

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Fri 7/17

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Sun 7/19

12:50 am-8:15 am

1 stop29h 25m

$283

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Mon 7/20

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Wed 7/22

12:50 am-8:15 am

1 stop29h 25m

$284

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Wed 7/22

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Sun 7/26

12:50 am-8:15 am

1 stop29h 25m

$285

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Wed 7/22

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Sun 7/26

12:50 am-8:15 am

1 stop29h 25m

$286

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Tue 7/21

7:55 pm-11:50 pm

1 stop29h 55m

Bangkok Suvarnabhumi

Sun 7/26

12:50 am-8:15 am

1 stop29h 25m

$287

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bangkok from

How to get the cheapest flight ticket from Seoul Gimpo Intl Airport to Bangkok

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Bangkok?

On average, the least expensive day to fly to Bangkok from Seoul Gimpo Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $315. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Seoul Gimpo Intl Airport to Bangkok on a Friday will generally be more expensive and average around $380. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Bangkok?

According to our data, the cheapest time of day to fly to Bangkok is at noon. momondo users have found flights departing from Seoul Gimpo Intl Airport to Bangkok at noon for as low as $302. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $349. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Seoul Gimpo Intl Airport to Bangkok flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul Gimpo Intl Airport to Bangkok

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to Bangkok takes 10h 25m
There are no direct flights from Seoul Gimpo Intl Airport to Bangkok. There are no popular flight routes from Seoul Gimpo Intl Airport to Bangkok.
Search flight deals

Frequently asked questions about flying from Seoul Gimpo Intl Airport to Bangkok

  • How far is Seoul Gimpo Intl to Bangkok by plane?

    The distance between Seoul Gimpo Intl and Bangkok is about 2302.1 mi. Typically, this will take 10h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Seoul Gimpo Intl Airport to Bangkok?

    Prices for flights from Seoul Gimpo Intl Airport to Bangkok refresh daily.

  • How old do you have to be to fly from Seoul Gimpo Intl Airport to Bangkok?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul Gimpo Intl Airport to Bangkok.

  • What documentation or ID do you need to fly to Bangkok?

    The necessary travel and health documents for your Bangkok trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Bangkok?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to Bangkok. momondo saves you time and could save you money on your trip.

Can I find flights from Seoul to Bangkok with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seoul to Bangkok flights to just show those with flexible booking policies.

How can momondo help me find flights from Seoul to Bangkok?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seoul to Bangkok.

I’m not ready to book a flight from Seoul to Bangkok right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seoul to Bangkok flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 15.4 mi from Bangkok
Bangkok Suvarnabhumi Airport
Bangkok Don Mueang Intl Airport