
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $209 (Kiwi.com) |
One-way from | $106 (Mytrip) |
Popular in | October |
Cheapest in | September |
Average price | $246 |
Fly from
Fly to
Route
Depart
Return
IncheonHanoi
ICN - HAN
ICNHAN
Incheon Intl
Wed 5/20
5:45 pm-9:40 am
1 stop17h 55m
Hanoi Noibai
Sat 5/23
2:10 am-4:45 pm
1 stop12h 35m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Fri 5/29
2:00 pm-1:50 am
1 stop13h 50m
Bangkok Suvarnabhumi
Mon 6/8
2:50 am-3:45 pm
1 stop10h 55m
IncheonHo Chi Minh City
ICN - SGN
ICNSGN
Incheon Intl
Wed 6/3
5:45 pm-1:50 am
1 stop10h 05m
Ho Chi Minh City
Sat 6/6
2:50 am-2:15 pm
1 stop9h 25m
IncheonNha Trang
ICN - CXR
ICNCXR
Incheon Intl
Sun 6/7
6:45 am-9:35 am
Nonstop4h 50m
Nha Trang Cam Ranh
Thu 6/11
10:55 pm-5:35 am
Nonstop4h 40m
IncheonHo Chi Minh City
ICN - SGN
ICNSGN
Incheon Intl
Tue 5/26
9:15 pm-12:30 am
Nonstop5h 15m
Ho Chi Minh City
Wed 6/3
12:20 pm-7:25 pm
Nonstop5h 05m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Wed 6/10
11:45 am-1:25 am
1 stop15h 40m
Bangkok Suvarnabhumi
Thu 6/25
2:50 am-3:45 pm
1 stop10h 55m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Sat 6/27
10:15 pm-1:25 am
1 stop29h 10m
Bangkok Suvarnabhumi
Tue 6/30
2:50 am-2:30 pm
1 stop9h 40m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Fri 6/26
8:35 am-1:25 am
1 stop18h 50m
Bangkok Suvarnabhumi
Mon 6/29
2:50 am-2:30 pm
1 stop9h 40m
IncheonBangkok
ICN - BKK
ICNBKK
Incheon Intl
Mon 8/31
2:00 pm-1:50 am
1 stop13h 50m
Bangkok Suvarnabhumi
Tue 9/1
2:50 am-8:45 pm
1 stop15h 55m
IncheonHanoi
ICN - HAN
ICNHAN
Incheon Intl
Sun 8/2
3:30 pm-1:50 am
1 stop12h 20m
Hanoi Noibai
Sat 8/29
2:50 am-9:55 pm
1 stop17h 05m
Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Southeast Asia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, May is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $190). Flying from Seoul to Southeast Asia in October is currently the most expensive (average of $338). 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.
It’s optimal to fly from Seoul to Southeast Asia in the morning. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their Seoul to Southeast Asia flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from SEL to zzYJX are scheduled on a Friday (26 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (18 on average).
Food
Overall
Comfort
Crew
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Overall
Comfort
Crew
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Overall
Comfort
Crew
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Overall
Comfort
Crew
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Overall
Comfort
Crew
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Overall
Comfort
Crew
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$180 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$62 | Average$223 | FlexibilityNo cancel fee | On-time86% | |
| Cheapest$73 | Average$210 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$79 | Average$337 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$93 | Average$196 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$97 | Average$298 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$98 | Average$312 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$116 | Average$255 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$128 | Average$198 | FlexibilityNo cancel fee | On-time53% | |
| Cheapest$134 | Average$256 | FlexibilityNo cancel fee | On-time81% |