Plan for extra time at ICN as security lines can take up to 20 minutes, especially during busy periods.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $436 (YBTour) |
One-way from | $379 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $729 |
Good round-trip deal | $1,024 or less |
Good one-way deal | $1,064 or less |
Fly from
Fly to
Route
Depart
Return
Price
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Wed 4/22
8:35 pm-7:12 am
1 stop23h 37m
Boston Logan Intl
Fri 9/18
9:20 am-6:35 pm
1 stop20h 15m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Fri 2/6
8:35 pm-11:54 pm
1 stop17h 19m
Boston Logan Intl
Sun 3/15
9:02 am-6:35 pm
1 stop20h 33m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 2/19
8:35 pm-6:54 am
1 stop24h 19m
Boston Logan Intl
Fri 5/8
5:55 pm-6:35 pm
1 stop35h 40m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Fri 2/20
6:00 pm-9:15 am
2 stops29h 15m
Boston Logan Intl
Sun 5/3
8:15 pm-3:00 pm
1 stop29h 45m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Tue 4/7
4:50 pm-1:05 am
1 stop21h 15m
Boston Logan Intl
Thu 4/23
9:32 am-4:20 am
2 stops29h 48m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Wed 2/18
12:45 pm-9:51 pm
2 stops23h 06m
Boston Logan Intl
Thu 5/7
12:20 pm-4:20 am
2 stops27h 00m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Mon 2/9
6:00 pm-10:52 am
2 stops30h 52m
Boston Logan Intl
Wed 3/11
11:00 am-4:40 am
1 stop28h 40m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Tue 2/10
12:45 pm-9:42 pm
1 stop22h 57m
Boston Logan Intl
Sun 3/15
5:45 am-4:40 am
1 stop33h 55m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Wed 4/22
11:30 am-1:06 am
2 stops26h 36m
Boston Logan Intl
Sun 5/3
5:30 am-3:00 pm
1 stop20h 30m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Tue 4/14
4:50 pm-12:04 am
2 stops20h 14m
Boston Logan Intl
Thu 9/10
1:50 pm-4:20 am
1 stop25h 30m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, October is the cheapest month in which you can book a flight from Seoul to Boston (average of $352). Flying from Seoul to Boston in July is currently the most expensive (average of $921). 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.
Unlike at noon, when flights are generally more expensive, you can save up to 52% on flights from Seoul to Boston by exploring options for tickets in the afternoon.
The most flights from SEL to BOS are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
Food
Crew
Overall
Boarding
Entertainment
Comfort
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Crew
Overall
Boarding
Entertainment
Comfort
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Crew
Overall
Boarding
Entertainment
Comfort
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Crew
Overall
Boarding
Entertainment
Comfort
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$476 | Average$859 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$493 | Average$770 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,290 | Average$1,513 | FlexibilityNo cancel fee | On-time81% |