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Cheap flights from Boston to Seoul from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Seoul departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Turkish Airlines Logo
8:00 pm - 9:05 am
BOS
-
ICN
23h 05m1 stop
Turkish Airlines Logo
10:45 am - 6:05 pm
ICN
-
BOS
45h 20m1 stop
$834Turkish Airlines
Wed, Jan 21 - Wed, Jan 28
Turkish Airlines Logo
8:00 pm - 6:20 pm
BOS
-
ICN
32h 20m1 stop
Turkish Airlines Logo
12:10 am - 6:05 pm
ICN
-
BOS
31h 55m1 stop
$852Turkish Airlines
Sun, Feb 22 - Thu, Feb 26
Turkish Airlines Logo
8:00 pm - 6:20 pm
BOS
-
ICN
32h 20m1 stop
Turkish Airlines Logo
12:10 am - 6:05 pm
ICN
-
BOS
31h 55m1 stop
$859Turkish Airlines
Wed, Feb 25 - Tue, Mar 3
Turkish Airlines Logo
9:50 pm - 5:40 pm
BOS
-
ICN
30h 50m1 stop
Turkish Airlines Logo
11:20 pm - 7:55 pm
ICN
-
BOS
33h 35m1 stop
$862Turkish Airlines
Tue, Apr 7 - Tue, Apr 21
Multiple Airlines Logo
6:40 pm - 2:10 pm
BOS
-
GMP
30h 30m2 stops
Multiple Airlines Logo
9:05 am - 4:40 pm
GMP
-
BOS
20h 35m1 stop
$865Multiple Airlines
Wed, Apr 8 - Wed, Apr 22
Multiple Airlines Logo
6:40 pm - 4:40 am
BOS
-
ICN
45h 00m2 stops
Multiple Airlines Logo
8:15 am - 4:40 pm
ICN
-
BOS
21h 25m1 stop
$865Multiple Airlines
Wed, Apr 8 - Wed, Apr 22
Multiple Airlines Logo
6:40 pm - 1:50 pm
BOS
-
ICN
29h 10m2 stops
Multiple Airlines Logo
3:00 pm - 4:20 pm
ICN
-
BOS
39h 20m1 stop
$868Multiple Airlines
Wed, Jan 28 - Sat, Feb 7
Multiple Airlines Logo
7:40 pm - 2:10 pm
BOS
-
GMP
29h 30m2 stops
Multiple Airlines Logo
8:35 am - 4:40 pm
GMP
-
BOS
21h 05m1 stop
$869Multiple Airlines
Fri, Mar 20 - Sun, Mar 29
Multiple Airlines Logo
6:40 pm - 6:30 pm
BOS
-
ICN
34h 50m2 stops
Multiple Airlines Logo
2:50 pm - 4:40 pm
ICN
-
BOS
38h 50m1 stop
$870Multiple Airlines
Sun, Apr 5 - Sat, Apr 11
Turkish Airlines Logo
8:00 pm - 9:05 am
BOS
-
ICN
23h 05m1 stop
Turkish Airlines Logo
12:10 am - 6:05 pm
ICN
-
BOS
31h 55m1 stop
$871Turkish Airlines
Mon, Feb 2 - Sun, Feb 8

Turkish Airlines flights from Boston to Seoul

Our best Turkish Airlines deals on Boston to Seoul flight tickets
Turkish Airlines
Feb 25
BOS8:00 pmBoston Logan Intl
23h 05m
1 stop
ICN9:05 amIncheon Intl
Mar 4
ICN12:10 amIncheon Intl
31h 55m
1 stop
BOS6:05 pmBoston Logan Intl
$834
Find similar
Turkish Airlines
Feb 22
BOS8:00 pmBoston Logan Intl
32h 20m
1 stop
ICN6:20 pmIncheon Intl
Feb 26
ICN12:10 amIncheon Intl
31h 55m
1 stop
BOS6:05 pmBoston Logan Intl
$852
Find similar
Turkish Airlines
Feb 25
BOS8:00 pmBoston Logan Intl
32h 20m
1 stop
ICN6:20 pmIncheon Intl
Mar 3
ICN12:10 amIncheon Intl
31h 55m
1 stop
BOS6:05 pmBoston Logan Intl
$859
Find similar

Cathay Pacific flights from Boston to Seoul

Our best Cathay Pacific deals on Boston to Seoul flight tickets
Cathay Pacific
Jan 19
BOS12:30 amBoston Logan Intl
23h 25m
1 stop
ICN1:55 pmIncheon Intl
Feb 10
ICN3:00 pmIncheon Intl
21h 00m
1 stop
BOS10:00 pmBoston Logan Intl
$1,011
Find similar
Cathay Pacific
Jan 6
BOS12:30 amBoston Logan Intl
22h 15m
1 stop
ICN12:45 pmIncheon Intl
Jan 28
ICN3:00 pmIncheon Intl
21h 00m
1 stop
BOS10:00 pmBoston Logan Intl
$1,036
Find similar
Cathay Pacific
Jan 12
BOS12:30 amBoston Logan Intl
23h 25m
1 stop
ICN1:55 pmIncheon Intl
Feb 3
ICN1:45 pmIncheon Intl
22h 15m
1 stop
BOS10:00 pmBoston Logan Intl
$1,041
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Seoul 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, momondo users made 832,500 searches. Data last updated January 6, 2026.
Use the filters below to find and compare flights from Boston to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Wed 1/21

8:00 pm-9:05 am

1 stop23h 05m

Incheon Intl

Wed 1/28

10:45 am-6:05 pm

1 stop45h 20m

$834

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Sun 2/22

8:00 pm-6:20 pm

1 stop32h 20m

Incheon Intl

Thu 2/26

12:10 am-6:05 pm

1 stop31h 55m

$852

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Wed 2/25

8:00 pm-6:20 pm

1 stop32h 20m

Incheon Intl

Tue 3/3

12:10 am-6:05 pm

1 stop31h 55m

$859

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Tue 4/7

9:50 pm-5:40 pm

1 stop30h 50m

Incheon Intl

Tue 4/21

11:20 pm-7:55 pm

1 stop33h 35m

$862

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Wed 4/8

6:40 pm-2:10 pm

2 stops30h 30m

Seoul Gimpo Intl

Wed 4/22

9:05 am-4:40 pm

1 stop20h 35m

$865

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Wed 4/8

6:40 pm-4:40 am

2 stops45h 00m

Incheon Intl

Wed 4/22

8:15 am-4:40 pm

1 stop21h 25m

$865

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Wed 1/28

6:40 pm-1:50 pm

2 stops29h 10m

Incheon Intl

Sat 2/7

3:00 pm-4:20 pm

1 stop39h 20m

$868

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Fri 3/20

7:40 pm-2:10 pm

2 stops29h 30m

Seoul Gimpo Intl

Sun 3/29

8:35 am-4:40 pm

1 stop21h 05m

$869

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Sun 4/5

6:40 pm-6:30 pm

2 stops34h 50m

Incheon Intl

Sat 4/11

2:50 pm-4:40 pm

1 stop38h 50m

$870

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Mon 2/2

8:00 pm-9:05 am

1 stop23h 05m

Incheon Intl

Sun 2/8

12:10 am-6:05 pm

1 stop31h 55m

$871

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from Boston to Seoul

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seoul?

The month of October is another great option to travel to Seoul, with average flight prices from Boston averaging around $1,073.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Monday is the cheapest day to fly to Seoul from Boston. The lowest ticket price found for a Monday departure recently was $1,026. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Friday, with ticket prices averaging around $1,222.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Boston in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,096 when looking at flights departing in the morning. At noon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,575 per ticket.

What is the cheapest Boston Logan Intl to Seoul flight route?

Fly from Boston Logan Intl to Incheon Intl for the best Boston Logan Intl - Seoul flight prices

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,504 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Boston for as low as $1,183 on momondo.

What cabin class options are available on Boston Logan Intl to Seoul flights?

There are 3 cabin classes available to choose from on Boston Logan Intl to Seoul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Seoul flights?

You could potentially save up to 6% on your flight if you consider stops on a Boston to Seoul flight.

How have Boston to Seoul flight prices changed over time?

As of January 2026, prices for Boston to Seoul flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Seoul

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Seoul according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Seoul (BOS to SEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Seoul

Best Price Found

$415

Fastest flight time

15h 30m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from Boston in the past 72 hours is $415. The best round-trip flight deal from Boston to Seoul found on momondo in the last 72 hours is $790.
The fastest flight from Boston to Seoul takes 15h 30m
Direct flights go from Boston to Seoul every day.
There are 2 airports in Seoul. From Boston there are direct flights to Incheon Intl (ICN).
Search flight deals

  • How far is Boston Logan Intl to Seoul by plane?

    The distance between Boston Logan Intl and Seoul is about 6795.0 mi. A reasonable flight in good conditions will take 15h 30m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Seoul?

    Prices for flights from Boston Logan Intl Airport to Seoul are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Seoul?

  • How old do you have to be to fly from Boston Logan Intl Airport to Seoul?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The travel and health documents you'll need for your trip to Seoul may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seoul. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to Seoul?

  • What is the most popular airline from Boston to Seoul?

Best airlines flying from Boston to Seoul

Compare and see reviews for airlines that fly from Boston to Seoul with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $357Free CancellationRating
7.9
8,019 reviews
Search Delta flights
Cathay PacificPriceFrom $774Free CancellationRating
7.6
1,121 reviews
Search Cathay Pacific flights
Turkish AirlinesPriceFrom $823Free CancellationRating
7.3
4,152 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $870Free CancellationRating
7.1
10,598 reviews
Search Air Canada flights
United AirlinesPriceFrom $872Free CancellationRating
7.4
9,135 reviews
Search United Airlines flights
American AirlinesPriceFrom $872Free CancellationRating
7.2
11,088 reviews
Search American Airlines flights
Korean AirPriceFrom $1,528Free CancellationRating
8.4
1,188 reviews
Search Korean Air flights

  • Korean Air Flights From Boston to Seoul

    Korean Air flies from Boston to Seoul around 7 times per week, with 1,188 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Boston to Seoul in the last 72 hours was $1,528 (round-trip), much lower than the average airfare cost of $2,052 for Korean Air flights on this route.

  • Delta Flights From Boston to Seoul

    Delta (7.9/10 from 8,017 reviews) operates around 7 flights from Boston to Seoul in any given week. The average Delta airfare for this route is around $2,107, with deals from around $357 rare but found on momondo. Referenced prices are for round-trip Boston to Seoul flight searches in the last 72 hours.

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Seoul?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Seoul. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Seoul with flexible booking policies on momondo?

All flight searches from Boston to Seoul on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to Seoul?

Once you have performed a search for Boston to Seoul flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boston to Seoul right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seoul from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport