Plan for extra time at ICN security, as lines can take up to 20 minutes, especially without fast track options.

Most accurate provider | OneTravel 3 stars |
|---|---|
Most trusted provider | OneTravel 3 stars |
Round-trip from | $387 (Hanatour) |
One-way from | $338 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $757 |
Good round-trip deal | $813 or less |
Good one-way deal | $606 or less |
Fly from
Fly to
Route
Depart
Return
Price
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
qui 12/25
8:35 pm-7:48 am
1 stop25h 13m
Boston Logan Intl
dom 1/11
7:00 am-6:35 pm
1 stop21h 35m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
dom 11/16
12:45 pm-5:56 am
2 stops31h 11m
Boston Logan Intl
sex 11/28
6:00 am-5:40 am
1 stop33h 40m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
seg 12/22
8:35 pm-12:23 am
1 stop17h 48m
Boston Logan Intl
ter 1/13
6:44 pm-6:35 pm
1 stop33h 51m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
qua 11/26
12:45 pm-8:06 am
1 stop33h 21m
Boston Logan Intl
qui 1/8
10:56 am-5:40 am
1 stop28h 44m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
seg 12/8
12:45 pm-5:06 pm
1 stop18h 21m
Boston Logan Intl
qua 1/7
5:57 pm-5:40 am
1 stop21h 43m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
sex 12/5
12:45 pm-5:06 pm
1 stop18h 21m
Boston Logan Intl
dom 1/4
9:30 am-5:40 am
2 stops30h 10m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
qui 12/18
6:00 pm-11:54 pm
2 stops19h 54m
Boston Logan Intl
qua 1/7
5:57 pm-5:40 am
1 stop21h 43m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
sáb 12/6
12:45 pm-6:48 pm
2 stops20h 03m
Boston Logan Intl
dom 1/4
9:30 am-5:40 am
2 stops30h 10m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
sáb 12/13
12:45 pm-5:06 pm
1 stop18h 21m
Boston Logan Intl
qua 12/31
9:30 am-5:40 am
2 stops30h 10m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
qui 12/4
6:00 pm-9:43 pm
1 stop17h 43m
Boston Logan Intl
seg 1/5
11:00 am-5:40 am
1 stop28h 40m
| 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Incheon Intl Airport 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 Incheon Intl Airport to Boston (average of $352). Flying from Incheon Intl Airport to Boston in July is currently the most expensive (average of $923). 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 Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 52% versus a flight at noon.
About 31% of weekly flights between Incheon and Boston have experienced delays in the past year, with the average delay time being 89 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Sunday 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, Delta have had the lowest number of delays on this route, with just 31% of flights being delayed.
Food
Comfort
Entertainment
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Comfort
Entertainment
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Comfort
Entertainment
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Comfort
Entertainment
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$471 | Average$943 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$611 | Average$771 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,290 | Average$1,506 | FlexibilityNo cancel fee | On-time81% |