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 | $470 (American Airlines) |
One-way from | $401 (Kiwi.com) |
Popular in | January |
Cheapest in | December |
Average price | $1,609 |
Good round-trip deal | $1,514 or less |
Good one-way deal | $1,064 or less |
Fly from
Fly to
Route
Depart
Return
Price
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Mon 2/2
7:15 pm-1:21 pm
1 stop32h 06m
Boston Logan Intl
Thu 2/5
6:00 am-4:45 pm
1 stop20h 45m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 3/26
5:55 pm-11:36 am
2 stops30h 41m
Boston Logan Intl
Mon 3/30
5:30 am-3:45 pm
1 stop21h 15m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 3/26
5:55 pm-11:36 am
2 stops30h 41m
Boston Logan Intl
Sat 3/28
4:04 pm-3:45 pm
1 stop34h 41m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Sun 2/15
7:15 pm-5:35 am
2 stops24h 20m
Boston Logan Intl
Sun 2/22
8:14 pm-4:45 pm
2 stops30h 31m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Sun 2/1
9:55 pm-2:38 pm
2 stops30h 43m
Boston Logan Intl
Sun 2/8
7:00 am-5:40 am
2 stops32h 40m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 3/26
5:55 pm-10:37 pm
2 stops41h 42m
Boston Logan Intl
Mon 3/30
6:40 pm-4:05 pm
2 stops32h 25m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 3/26
5:55 pm-10:37 pm
2 stops41h 42m
Boston Logan Intl
Sun 3/29
6:40 pm-4:05 pm
2 stops32h 25m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 3/26
5:55 pm-11:51 pm
1 stop18h 56m
Boston Logan Intl
Sun 3/29
4:04 pm-3:45 pm
1 stop34h 41m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Wed 3/25
5:55 pm-11:51 pm
1 stop18h 56m
Boston Logan Intl
Sun 3/29
6:06 pm-3:45 pm
1 stop32h 39m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 1/29
12:45 pm-9:52 pm
2 stops23h 07m
Boston Logan Intl
Fri 1/30
5:57 pm-4:15 pm
1 stop32h 18m
| 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 June is currently the most expensive (average of $1,001). 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 decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
About 27% of weekly flights between Incheon and Boston have experienced delays in the past year, with the average delay time being 85 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.
Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Korean Air have had the lowest number of delays on this route, with just 27% of flights being delayed.
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Food
Entertainment
Boarding
Overall
Comfort
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$471 | Average$728 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$493 | Average$765 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,282 | Average$1,645 | FlexibilityNo cancel fee | On-time81% |