Cheap flights from Boston to Seoul from $342

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 9/5. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:40 pm - 1:50 pm
BOS
-
ICN
30h 10m
2 stops
Multiple Airlines Logo
8:20 am - 4:40 pm
ICN
-
BOS
21h 20m
1 stop
$1,010Multiple Airlines
Sun, Sep 6 - Sun, Sep 13
Multiple Airlines Logo
6:40 pm - 1:40 pm
BOS
-
ICN
30h 00m
2 stops
Multiple Airlines Logo
8:20 am - 4:40 pm
ICN
-
BOS
21h 20m
1 stop
$1,058Multiple Airlines
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
6:40 pm - 8:05 pm
BOS
-
ICN
36h 25m
2 stops
Multiple Airlines Logo
8:20 am - 4:40 pm
ICN
-
BOS
21h 20m
1 stop
$1,077Multiple Airlines
Wed, Aug 26 - Fri, Sep 11
Multiple Airlines Logo
1:00 pm - 11:15 am
BOS
-
ICN
33h 15m
2 stops
Multiple Airlines Logo
12:35 pm - 7:57 am
ICN
-
BOS
32h 22m
2 stops
$1,088Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
5:50 am - 4:15 pm
BOS
-
ICN
21h 25m
1 stop
Air Canada Logo
7:05 pm - 10:40 pm
ICN
-
BOS
16h 35m
1 stop
$1,152Air Canada
Tue, Sep 15 - Tue, Sep 22
Cathay Pacific Logo
1:45 am - 12:40 pm
BOS
-
ICN
21h 55m
1 stop
Cathay Pacific Logo
1:40 pm - 11:05 pm
ICN
-
BOS
22h 25m
1 stop
$1,163Cathay Pacific
Tue, Sep 8 - Tue, Oct 6
China Eastern Logo
6:30 am - 11:55 am
BOS
-
ICN
40h 25m
2 stops
China Eastern Logo
6:25 pm - 9:11 pm
ICN
-
BOS
39h 46m
2 stops
$1,164China Eastern
Tue, Sep 1 - Sun, Sep 20
China Eastern Logo
6:30 am - 11:00 am
BOS
-
GMP
39h 30m
2 stops
China Eastern Logo
8:50 pm - 11:58 pm
GMP
-
BOS
40h 08m
2 stops
$1,245China Eastern
Sat, Sep 5 - Tue, Sep 15
Japan Airlines Logo
9:02 am - 9:15 pm
BOS
-
GMP
23h 13m
2 stops
Japan Airlines Logo
8:00 am - 6:10 pm
GMP
-
BOS
23h 10m
1 stop
$1,428Japan Airlines
Tue, Oct 6 - Tue, Oct 20
Japan Airlines Logo
6:30 am - 10:40 am
BOS
-
GMP
39h 10m
2 stops
Japan Airlines Logo
8:00 am - 6:15 pm
GMP
-
BOS
23h 15m
1 stop
$1,429Japan Airlines
Thu, Apr 23 - Mon, May 11

China Airlines flights from Boston to Seoul

Our best China Airlines deals on Boston to Seoul flight tickets
China Airlines
Sep 5
BOS7:05 pmBoston Logan Intl
35h 00m
2 stops
ICN7:05 pmIncheon Intl
Sep 15
ICN12:35 pmIncheon Intl
41h 14m
2 stops
BOS4:49 pmBoston Logan Intl
$1,178
China Airlines
Sep 1
BOS12:42 pmBoston Logan Intl
33h 48m
2 stops
ICN11:30 amIncheon Intl
Sep 7
ICN12:45 pmIncheon Intl
32h 41m
2 stops
BOS8:26 amBoston Logan Intl
$1,197
China Airlines
Sep 1
BOS7:05 pmBoston Logan Intl
35h 00m
2 stops
ICN7:05 pmIncheon Intl
Sep 20
ICN12:35 pmIncheon Intl
41h 14m
2 stops
BOS4:49 pmBoston Logan Intl
$1,213

Cathay Pacific flights from Boston to Seoul

Our best Cathay Pacific deals on Boston to Seoul flight tickets
Cathay Pacific
Sep 8
BOS1:45 amBoston Logan Intl
21h 55m
1 stop
ICN12:40 pmIncheon Intl
Oct 6
ICN1:40 pmIncheon Intl
22h 25m
1 stop
BOS11:05 pmBoston Logan Intl
$1,163
Cathay Pacific
Oct 4
BOS1:45 amBoston Logan Intl
21h 55m
1 stop
ICN12:40 pmIncheon Intl
Oct 18
ICN1:55 amIncheon Intl
34h 10m
1 stop
BOS11:05 pmBoston Logan Intl
$1,166
Cathay Pacific
Sep 8
BOS1:45 amBoston Logan Intl
21h 55m
1 stop
ICN12:40 pmIncheon Intl
Oct 5
ICN1:55 amIncheon Intl
34h 10m
1 stop
BOS11:05 pmBoston Logan Intl
$1,167

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 April 10, 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

Cheapest round-trip

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Sun 9/6

6:40 pm-1:50 pm

2 stops30h 10m

Incheon Intl

Sun 9/13

8:20 am-4:40 pm

1 stop21h 20m

$1,010

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Wed 9/2

6:40 pm-1:40 pm

2 stops30h 00m

Incheon Intl

Sun 9/13

8:20 am-4:40 pm

1 stop21h 20m

$1,058

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Wed 8/26

6:40 pm-8:05 pm

2 stops36h 25m

Incheon Intl

Fri 9/11

8:20 am-4:40 pm

1 stop21h 20m

$1,077

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Tue 9/15

1:00 pm-11:15 am

2 stops33h 15m

Incheon Intl

Tue 9/22

12:35 pm-7:57 am

2 stops32h 22m

$1,088
Quickest round-trip

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Tue 9/15

5:50 am-4:15 pm

1 stop21h 25m

Incheon Intl

Tue 9/22

7:05 pm-10:40 pm

1 stop16h 35m

$1,152

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Tue 9/8

1:45 am-12:40 pm

1 stop21h 55m

Incheon Intl

Tue 10/6

1:40 pm-11:05 pm

1 stop22h 25m

$1,163

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Tue 9/1

6:30 am-11:55 am

2 stops40h 25m

Incheon Intl

Sun 9/20

6:25 pm-9:11 pm

2 stops39h 46m

$1,164

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Sat 9/5

6:30 am-11:00 am

2 stops39h 30m

Seoul Gimpo Intl

Tue 9/15

8:50 pm-11:58 pm

2 stops40h 08m

$1,245

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Tue 10/6

9:02 am-9:15 pm

2 stops23h 13m

Seoul Gimpo Intl

Tue 10/20

8:00 am-6:10 pm

1 stop23h 10m

$1,428

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Thu 4/23

6:30 am-10:40 am

2 stops39h 10m

Seoul Gimpo Intl

Mon 5/11

8:00 am-6:15 pm

1 stop23h 15m

$1,429

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 typical price of a round-trip flight between Boston and Seoul?

What is the cheapest month to fly to Seoul?

The month of November is another great option to travel to Seoul, with average flight prices from Boston averaging around $1,046.

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 $1,001. 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 $1,207.

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

Flying to Seoul from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $739 when looking at flights departing in the evening. In the morning is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,066 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 $1,568 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 $952 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 26% 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 April 2026, prices for Boston to Seoul flights are approximately 15% 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

$511

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 $511. The best round-trip flight deal from Boston to Seoul found on momondo in the last 72 hours is $1,024.
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).

Frequently asked questions about flying from Boston to Seoul

  • 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
8,406 reviews
Search Delta flights
Cathay PacificPriceFrom $767Free CancellationRating
7.6
1,268 reviews
Search Cathay Pacific flights
Air CanadaPriceFrom $806Free CancellationRating
7.1
10,916 reviews
Search Air Canada flights
Turkish AirlinesPriceFrom $843Free CancellationRating
7.3
4,305 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $872Free CancellationRating
7.4
9,570 reviews
Search United Airlines flights
American AirlinesPriceFrom $872Free CancellationRating
7.1
11,572 reviews
Search American Airlines flights
Korean AirPriceFrom $1,594Free CancellationRating
8.4
1,204 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 1,204 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Boston to Seoul in the last 72 hours was $1,594 (round-trip), much lower than the average airfare cost of $2,002 for Korean Air flights on this route.

  • Delta Flights From Boston to Seoul

    Delta (7.9/10 from 8,406 reviews) operates around 7 flights from Boston to Seoul in any given week. The average Delta airfare for this route is around $2,049, 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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1 adult
Sun 5/10
Sun 5/17

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