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 | $415 (Priceline) |
One-way from | $339 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $595 |
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
Tue 4/7
4:50 pm-1:05 am
1 stop21h 15m
Boston Logan Intl
Wed 4/15
12:20 pm-4:20 am
2 stops27h 00m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Tue 4/7
11:30 am-11:53 pm
2 stops25h 23m
Boston Logan Intl
Mon 4/13
8:15 pm-3:00 pm
1 stop29h 45m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Mon 4/20
4:50 pm-8:23 am
1 stop28h 33m
Boston Logan Intl
Wed 9/16
6:00 pm-4:20 am
1 stop21h 20m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Wed 12/24
12:45 pm-11:35 pm
2 stops24h 50m
Boston Logan Intl
Wed 12/31
7:25 am-5:40 am
2 stops32h 15m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 4/9
4:50 pm-12:04 am
2 stops20h 14m
Boston Logan Intl
Sat 4/18
10:44 am-4:20 am
2 stops28h 36m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Tue 4/7
11:30 am-9:42 pm
1 stop23h 12m
Boston Logan Intl
Fri 4/17
5:30 am-3:00 pm
1 stop20h 30m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 12/18
12:45 pm-5:10 pm
1 stop18h 25m
Boston Logan Intl
Thu 1/1
7:45 am-5:40 am
2 stops31h 55m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Thu 12/18
12:45 pm-7:56 pm
1 stop21h 11m
Boston Logan Intl
Mon 12/29
6:00 am-5:40 am
1 stop33h 40m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Tue 1/13
12:45 pm-2:02 pm
2 stops39h 17m
Boston Logan Intl
Thu 2/26
3:09 pm-4:15 pm
2 stops35h 06m
IncheonBoston
ICN - BOS
ICNBOS
Incheon Intl
Mon 12/22
12:45 pm-12:53 am
1 stop26h 08m
Boston Logan Intl
Thu 1/1
8:00 am-5:40 am
1 stop31h 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 $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.
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 30% of weekly flights between Incheon and Boston have experienced delays in the past year, with the average delay time being 88 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.
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, Korean Air have had the lowest number of delays on this route, with just 30% of flights being delayed.
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
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% |