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$423+ Cheap flights from Boston (BOS) to South Korea

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ICN
Jun 25 — Jul 21
Thu 6/25
Thu 7/2
1 adult, Economy
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Cheap flight deals from Boston to South Korea

Cheapest flights from Boston to South Korea
Explore the most affordable flight options available from Boston to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 26, 2026.

This Justfly.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:25 am
BOS
-
ICN
1 stop22h 20m
WestJet
Thu 9/108:45 pm
ICN
-
BOS
1 stop33h 55m
WestJet
Deal found 5/25$909
This WestJet deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:30 pm
BOS
-
ICN
1 stop35h 15m
WestJet
Thu 9/108:45 pm
ICN
-
BOS
1 stop33h 55m
WestJet
Deal found 5/24$956
This SmartFares deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:40 pm
BOS
-
GMP
2 stops29h 30m
Multiple Airlines
Wed 11/188:35 am
GMP
-
BOS
1 stop21h 45m
Multiple Airlines
Deal found 5/21$959
This SmartFares deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:40 pm
BOS
-
GMP
2 stops29h 30m
Multiple Airlines
Sun 11/298:35 am
GMP
-
BOS
1 stop21h 45m
Multiple Airlines
Deal found 5/25$960
This Ovago deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:40 pm
BOS
-
ICN
2 stops30h 00m
Multiple Airlines
Sat 10/313:00 pm
ICN
-
BOS
1 stop39h 20m
Multiple Airlines
Deal found 5/25$973
This FlightHub deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:40 pm
BOS
-
GMP
2 stops36h 30m
Multiple Airlines
Wed 10/288:35 am
GMP
-
BOS
1 stop21h 45m
Multiple Airlines
Deal found 5/22$977
This Justfly.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:30 pm
BOS
-
ICN
1 stop35h 15m
WestJet
Sun 9/138:45 pm
ICN
-
BOS
1 stop33h 55m
WestJet
Deal found 5/25$983
This Super.com deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:30 pm
BOS
-
ICN
1 stop35h 15m
WestJet
Sat 9/128:45 pm
ICN
-
BOS
1 stop33h 55m
WestJet
Deal found 5/23$986
This BusinessClass deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:40 pm
BOS
-
ICN
2 stops33h 55m
Multiple Airlines
Sat 12/263:00 pm
ICN
-
BOS
1 stop39h 20m
Multiple Airlines
Deal found 5/25$1,003
This SmartFares deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:40 pm
BOS
-
GMP
2 stops36h 30m
Multiple Airlines
Tue 9/153:00 pm
GMP
-
BOS
1 stop38h 40m
Multiple Airlines
Deal found 5/22$1,010
This WestJet deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:30 pm
BOS
-
ICN
1 stop35h 15m
WestJet
Thu 9/108:45 pm
ICN
-
BOS
1 stop33h 55m
WestJet
Deal found 5/22$1,021
This WestJet deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:30 pm
BOS
-
ICN
1 stop35h 15m
WestJet
Sat 9/128:45 pm
ICN
-
BOS
1 stop33h 55m
WestJet
Deal found 5/21$1,045

Find flight deals from Boston to South Korea

Keep the following information in mind while searching for Boston to South Korea flight deals. Data was last updated May 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$956
(WestJet)

One-way from

$423
(Super.com)

Popular in

June

Cheapest in

February

Average price

$1,334

Good round-trip deal

$1,186 or less

Good one-way deal

$701 or less
Provider with most accurate pricing for Boston Logan Intl-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Seoul (SEL) flights.
Search Deals
From Boston Logan Intl to South Korea
Search Deals
One-way flight from Boston Logan Intl to South Korea
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to South Korea.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to South Korea.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to South Korea that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 26, 2026.
Use the filters below to find and compare flights from Boston to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Tue 9/1

7:00 am-9:15 pm

2 stops25h 15m

Seoul Gimpo Intl

Wed 9/30

8:00 am-10:50 pm

2 stops27h 50m

$1,539

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Mon 8/24

7:59 pm-11:30 am

2 stops26h 31m

Incheon Intl

Fri 8/28

12:45 pm-8:26 am

2 stops32h 41m

$1,550

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Sat 8/29

6:00 am-10:40 am

2 stops39h 40m

Seoul Gimpo Intl

Sat 9/5

7:15 pm-6:10 pm

1 stop35h 55m

$1,623

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Tue 11/10

6:05 am-10:05 pm

2 stops26h 00m

Seoul Gimpo Intl

Fri 11/13

7:40 pm-3:22 pm

2 stops33h 42m

$1,665

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Thu 11/12

7:19 pm-12:25 pm

2 stops27h 06m

Incheon Intl

Mon 11/16

11:00 pm-10:46 pm

2 stops37h 46m

$1,672

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Thu 7/16

6:03 am-5:30 pm

2 stops22h 27m

Incheon Intl

Thu 8/13

7:35 pm-5:40 am

2 stops23h 05m

$1,737

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Wed 8/26

6:26 pm-10:40 am

2 stops27h 14m

Seoul Gimpo Intl

Thu 9/3

8:00 am-11:55 pm

2 stops28h 55m

$1,737

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Fri 10/9

6:08 pm-12:40 pm

2 stops29h 32m

Incheon Intl

Thu 10/15

8:00 am-11:05 pm

1 stop28h 05m

$1,792

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Mon 9/14

6:30 am-5:55 pm

2 stops22h 25m

Seoul Gimpo Intl

Wed 9/23

7:15 pm-6:49 pm

2 stops36h 34m

$1,855

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Sat 10/24

7:00 am-10:05 pm

2 stops26h 05m

Seoul Gimpo Intl

Mon 10/26

12:05 pm-6:25 pm

1 stop19h 20m

$1,870

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Boston to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to South Korea

What is the cheapest month to book a flight from Boston to South Korea?

Currently, September is the cheapest month in which you can book a flight from Boston to South Korea (average of $258). Flying from Boston to South Korea in February is currently the most expensive (average of $872). 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.

What is the cheapest time of day to fly from BOS to KR?

Find hourly flight availability from Boston to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 26, 2026.

When flying from Boston to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Boston to South Korea

Explore weekly flight availability from Boston to South Korea. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 26, 2026.

The most flights from BOS to KR0 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).

How often are flights from Boston to South Korea delayed?

About 30% of weekly flights between Boston and South Korea have experienced delays in the past year, with the average delay time being 101 minutes.

What is the most punctual flight time for Boston to South Korea flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to South Korea flights?

Over the last year, Korean Air have had the lowest number of delays on this route, with just 30% of flights being delayed.

How far ahead should I book a flight from Boston to South Korea?

The price you pay for your flight from Boston to South Korea may vary depending on when you book. For the best chance of a lower fare, look to book 11 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated May 26, 2026.
See what other customers who have flown with Korean Air,Delta, andCathay Pacific from Boston to South Korea have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,217 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,425 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
1,344 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
9,753 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
11,091 reviews
Korean Air
8.4
Very good
1,217 reviews

Crew

8.7

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Boston to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to South Korea?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to South Korea. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

  • How long is the flight from Boston to South Korea?

    Departing from Boston to South Korea will take you 22h 27m. The distance between Boston and South Korea is about 6809 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Boston to South Korea one-way?

    $468 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $479 and $490, respectively.

  • What are the most popular routes from Boston to South Korea?

    When deciding which route to take from Boston to South Korea consider Boston Logan Intl - Incheon Intl, Boston Logan Intl - Seoul Gimpo Intl or Boston Logan Intl - Busan Gimhae as they are the most popular.

  • What are the cheapest flights from Boston to South Korea?

    The cheapest flight price from Boston to South Korea is $468. On average you can expect to pay $2,873. The most popular route, (Boston Logan Intl - Incheon Intl), can usually be booked for $973.

  • Can I find deals for flights from Boston to South Korea that include hotel bookings?

    Yes. In addition to deals on Boston to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to South Korea?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to South Korea.

  • Can I find deals for business class flights from Boston to South Korea?

    Yes. Cheapflights offers flight deals from Boston to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to South Korea?

    Currently, September is the cheapest month in which you can book a flight from Boston to South Korea (average of $258). Flying from Boston to South Korea in February is currently the most expensive (average of $872). 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.

See more FAQs

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Top 7 airlines flying from Boston to South Korea

Discover the top 7 airlines that operate flights from Boston to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$767Average$1,082FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$806Average$1,237FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$843Average$954FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$872Average$1,464FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$872Average$1,266FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,188Average$2,189FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,594Average$1,951FlexibilityNo cancel feeOn-time81%

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