TG offers great food on long-haul flights, with Thai dishes like curry and pad thai.
TG's Royal Silk Business class offers three fare types with varying flexibility and mileage accrual.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $146 (Kiwi.com) |
One-way from | $101 (Trip.com) |
Popular in | January |
Cheapest in | September |
Average price | $347 |
Good round-trip deal | $324 or less |
Good one-way deal | $184 or less |
Fly from
Fly to
Route
Depart
Return
Price
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Sun 2/8
7:50 pm-12:10 am
Nonstop6h 20m
Bangkok Suvarnabhumi
Thu 2/12
1:30 am-9:00 am
Nonstop5h 30m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Fri 5/29
10:05 am-6:05 pm
1 stop10h 00m
Bangkok Suvarnabhumi
Wed 6/3
6:05 pm-6:00 am
1 stop9h 55m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Wed 6/3
6:05 pm-10:50 am
1 stop18h 45m
Bangkok Suvarnabhumi
Mon 6/8
3:55 pm-5:50 am
1 stop11h 55m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Tue 3/24
3:25 pm-1:25 am
1 stop12h 00m
Bangkok Suvarnabhumi
Sun 3/29
2:25 am-10:40 pm
1 stop18h 15m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Tue 2/10
7:30 pm-11:45 pm
Nonstop6h 15m
Bangkok Suvarnabhumi
Wed 3/4
1:00 am-8:25 am
Nonstop5h 25m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Sun 3/15
7:50 pm-12:10 am
Nonstop6h 20m
Bangkok Suvarnabhumi
Thu 3/19
1:30 am-9:00 am
Nonstop5h 30m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Wed 3/18
7:30 pm-11:45 pm
Nonstop6h 15m
Bangkok Suvarnabhumi
Tue 3/31
1:10 am-8:55 am
Nonstop5h 45m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Fri 3/13
7:30 pm-11:45 pm
Nonstop6h 15m
Bangkok Suvarnabhumi
Sat 3/21
1:00 am-8:25 am
Nonstop5h 25m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Fri 3/27
5:15 pm-9:25 pm
Nonstop6h 10m
Bangkok Suvarnabhumi
Sun 4/5
10:45 pm-6:15 am
Nonstop5h 30m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Tue 3/31
5:15 pm-9:10 pm
Nonstop5h 55m
Bangkok Suvarnabhumi
Tue 4/7
10:45 pm-6:15 am
Nonstop5h 30m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Incheon Intl Airport to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Bangkok Suvarnabhumi Airport (average of $94). Flying from Incheon Intl Airport to Bangkok Suvarnabhumi Airport in January is currently the most expensive (average of $198). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Incheon Intl Airport to Bangkok Suvarnabhumi Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
About 25% of weekly flights between Incheon and Bangkok have experienced delays in the past year, with the average delay time being 119 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Thai Airways have had the lowest number of delays on this route, with just 7% of flights being delayed.
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$280 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$93 | Average$202 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$96 | Average$251 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$104 | Average$178 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$106 | Average$252 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$129 | Average$245 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$138 | Average$173 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$139 | Average$237 | FlexibilityNo cancel fee | On-time86% | |
| Cheapest$149 | Average$217 | FlexibilityNo cancel fee | On-time94% | |
| Cheapest$187 | Average$307 | FlexibilityNo cancel fee | On-time62% |