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$378+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ICN
mar. 22 — mar. 291
dom. 3/22
dom. 3/29
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 febrero 20, 2026.

This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/207:40 pm
BOS
-
ICN
2 stops35h 50m
Multiple Airlines
vie. 3/278:20 am
ICN
-
BOS
1 stop22h 00m
Multiple Airlines
Deal found 2/18$849
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/16:40 pm
BOS
-
ICN
2 stops30h 10m
Multiple Airlines
mié. 5/138:20 am
ICN
-
BOS
1 stop21h 20m
Multiple Airlines
Deal found 2/19$851
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/16:40 pm
BOS
-
GMP
2 stops36h 30m
Multiple Airlines
jue. 4/163:00 pm
GMP
-
BOS
1 stop38h 40m
Multiple Airlines
Deal found 2/19$852
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/106:40 pm
BOS
-
ICN
2 stops34h 50m
Multiple Airlines
dom. 4/198:20 am
ICN
-
BOS
1 stop21h 20m
Multiple Airlines
Deal found 2/19$852
This Trip.com deal was found by Cheapflights users on 2/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/137:40 pm
BOS
-
GMP
2 stops29h 30m
Multiple Airlines
vie. 3/208:40 am
GMP
-
BOS
1 stop21h 40m
Multiple Airlines
Deal found 2/17$878
This Trip.com deal was found by Cheapflights users on 2/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/16:40 pm
BOS
-
ICN
2 stops36h 25m
Multiple Airlines
jue. 4/162:50 pm
ICN
-
BOS
1 stop38h 50m
Multiple Airlines
Deal found 2/19$885
This Ovago deal was found by Cheapflights users on 2/17. 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.
vie. 4/106:40 pm
BOS
-
ICN
2 stops34h 50m
Multiple Airlines
mié. 4/228:20 am
ICN
-
BOS
1 stop21h 20m
Multiple Airlines
Deal found 2/17$888
This BusinessClass deal was found by Cheapflights users on 2/19. 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.
vie. 4/36:40 pm
BOS
-
ICN
2 stops34h 50m
Multiple Airlines
sáb. 4/112:50 pm
ICN
-
BOS
1 stop38h 50m
Multiple Airlines
Deal found 2/19$889
This FlightHub deal was found by Cheapflights users on 2/16. 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.
vie. 3/207:40 pm
BOS
-
ICN
2 stops35h 50m
Multiple Airlines
dom. 4/58:20 am
ICN
-
BOS
1 stop21h 20m
Multiple Airlines
Deal found 2/16$890
This Trip.com deal was found by Cheapflights users on 2/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/36:40 pm
BOS
-
ICN
2 stops34h 50m
Multiple Airlines
vie. 4/108:20 am
ICN
-
BOS
1 stop21h 20m
Multiple Airlines
Deal found 2/17$894
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/176:40 pm
BOS
-
ICN
2 stops34h 50m
Multiple Airlines
mié. 4/298:20 am
ICN
-
BOS
1 stop21h 20m
Multiple Airlines
Deal found 2/19$899
This Trip.com deal was found by Cheapflights users on 2/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/196:40 pm
BOS
-
ICN
2 stops30h 10m
Multiple Airlines
sáb. 4/259:10 pm
ICN
-
BOS
2 stops33h 30m
Multiple Airlines
Deal found 2/18$901

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 febrero 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$849
(Gurufare)

One-way from

$378
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$1,021

Good round-trip deal

$829 or less

Good one-way deal

$439 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 ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 febrero 20, 2026.
Use the filters below to find and compare flights from Boston to South Korea that are best for you.

Fly from

Boston

Fly to

South Korea

Route

Depart

Return

Price

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

vie. 3/13

7:40 pm-2:10 pm

2 stops29h 30m

Seoul Gimpo Intl

vie. 3/20

8:40 am-5:20 pm

1 stop21h 40m

$878

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

mar. 4/7

10:32 am-9:15 pm

2 stops21h 43m

Seoul Gimpo Intl

mar. 4/21

8:00 am-11:52 pm

2 stops28h 52m

$1,060

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

mar. 2/24

12:09 pm-10:55 am

2 stops32h 46m

Seoul Gimpo Intl

mar. 3/3

8:00 am-10:48 pm

2 stops28h 48m

$1,108

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

mié. 2/25

12:09 pm-10:55 am

2 stops32h 46m

Seoul Gimpo Intl

mié. 3/4

8:00 am-10:48 pm

2 stops28h 48m

$1,108

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

jue. 4/16

1:00 pm-10:40 am

1 stop32h 40m

Seoul Gimpo Intl

vie. 4/24

8:00 am-6:10 pm

1 stop23h 10m

$1,146

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

mar. 3/17

1:15 pm-6:20 pm

1 stop40h 05m

Seoul Gimpo Intl

sáb. 4/4

8:00 am-6:10 pm

1 stop23h 10m

$1,147

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

jue. 4/16

1:00 pm-10:40 am

1 stop32h 40m

Seoul Gimpo Intl

mié. 4/22

7:15 pm-6:10 pm

1 stop35h 55m

$1,150

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

mié. 3/18

1:15 pm-6:20 pm

1 stop40h 05m

Seoul Gimpo Intl

dom. 4/5

7:15 pm-6:10 pm

1 stop35h 55m

$1,179

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

sáb. 5/2

8:15 pm-11:30 am

2 stops26h 15m

Incheon Intl

sáb. 5/16

12:45 pm-7:41 am

2 stops31h 56m

$1,240

BostonBusan

BOS - PUS

BOSPUS

Boston Logan Intl

mié. 3/4

6:24 pm-2:35 pm

2 stops30h 11m

Busan Gimhae

sáb. 3/7

6:55 pm-6:18 am

2 stops49h 23m

$1,241

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 55 results
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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, May is the cheapest month in which you can book a flight from Boston to South Korea (average of $521). Flying from Boston to South Korea in June is currently the most expensive (average of $1,315). 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 febrero 20, 2026.

A simple way to save on the total cost of your ticket is to fly from Boston to South Korea in the afternoon. If you’re flexible enough to do this you can expect to save up to 58% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Boston to South Korea?

Use this chart to determine the cheapest time to fly round-trip from Boston to South Korea. Price data was last updated on February 17, 2026.

Travelers seeking maximum savings on their Boston to South Korea flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 febrero 20, 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 99 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?

Wednesday 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.

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 febrero 20, 2026.
See what other customers who have flown with Korean Air, Delta, and Cathay 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
1,194 reviews

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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
1,194 reviews
Korean Air
8.4
Very good
1,194 reviews

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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
8,215 reviews
Korean Air
8.4
Very good
1,194 reviews

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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
1,171 reviews
Korean Air
8.4
Very good
1,194 reviews

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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
9,325 reviews
Korean Air
8.4
Very good
1,194 reviews

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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
10,732 reviews
Korean Air
8.4
Very good
1,194 reviews

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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 21h 43m. The distance between Boston and South Korea is about 6797 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?

    $59 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on American Airlines and Frontier, with prices starting from $79 and $87, 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 $376. On average you can expect to pay $2,570. The most popular route, (Boston Logan Intl - Incheon Intl), can usually be booked for $849.

  • 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, May is the cheapest month in which you can book a flight from Boston to South Korea (average of $521). Flying from Boston to South Korea in June is currently the most expensive (average of $1,315). 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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Alternative routes for Boston to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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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 febrero 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$357Average$2,045FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$767Average$1,052FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$837Average$994FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$854Average$1,203FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$872Average$1,430FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$872Average$1,266FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,528Average$2,036FlexibilityNo cancel feeOn-time81%

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