Cheap flights from Boston to Seoul from $372

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 10/1. 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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Find the cheapest flights from Boston to Seoul (BOS-SEL)

Cheap round-trip flights

Cathay Pacific Logo
1:30 am - 6:35 pmBOS-ICN
28h 05m1 stop
Cathay Pacific Logo
1:50 pm - 10:00 pmICN-BOS
22h 10m1 stop
$773Cathay Pacific
Find Deal
Tue, Oct 28 - Tue, Nov 11
Cathay Pacific Logo
1:40 am - 9:10 pmBOS-ICN
30h 30m1 stop
Cathay Pacific Logo
1:40 pm - 11:25 pmICN-BOS
22h 45m1 stop
$817Cathay Pacific
Find Deal
Mon, Sep 1 - Wed, Sep 24
Cathay Pacific Logo
1:40 am - 12:40 pmBOS-ICN
22h 00m1 stop
Cathay Pacific Logo
3:10 pm - 11:00 pmICN-BOS
20h 50m1 stop
$818Cathay Pacific
Find Deal
Sun, Aug 31 - Mon, Sep 15
Air Canada Logo
3:15 pm - 4:15 pmBOS-ICN
36h 00m1 stop
Air Canada Logo
5:45 pm - 9:30 amICN-BOS
28h 45m2 stops
$859Air Canada
Find Deal
Mon, Sep 1 - Mon, Sep 15
Air Canada Logo
6:00 am - 4:05 pmBOS-ICN
21h 05m2 stops
Air Canada Logo
6:55 pm - 9:32 amICN-BOS
28h 37m2 stops
$860Air Canada
Find Deal
Sun, Sep 21 - Mon, Nov 10
 Logo
7:00 pm - 9:35 pmBOS-ICN
37h 35m1 stop
 Logo
9:30 pm - 1:48 pmICN-BOS
29h 18m2 stops
Sat, Sep 13 - Tue, Sep 16
 Logo
7:00 pm - 6:45 pmBOS-ICN
34h 45m3 stops
 Logo
9:30 pm - 1:48 pmICN-BOS
29h 18m2 stops
Thu, Sep 4 - Fri, Sep 12
Japan Airlines Logo
1:20 pm - 10:45 amBOS-GMP
32h 25m1 stop
Japan Airlines Logo
7:55 am - 6:05 pmGMP-BOS
23h 10m1 stop
$981Japan Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Japan Airlines Logo
7:00 am - 9:50 pmBOS-GMP
25h 50m2 stops
Japan Airlines Logo
7:20 pm - 6:05 pmGMP-BOS
35h 45m1 stop
$988Japan Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
China Eastern Logo
6:50 am - 11:00 amBOS-GMP
39h 10m2 stops
China Eastern Logo
8:50 pm - 11:56 pmGMP-BOS
40h 06m2 stops
$1,114China Eastern
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Fri, Aug 29 - Fri, Sep 5

Cathay Pacific flights from Boston to Seoul

Our best Cathay Pacific deals on Boston to Seoul flight tickets
Cathay Pacific
Oct 28
BOS1:30 amBoston Logan Intl
28h 05m
1 stop
ICN6:35 pmIncheon Intl
Nov 11
ICN1:50 pmIncheon Intl
22h 10m
1 stop
BOS10:00 pmBoston Logan Intl
Cathay Pacific
Sep 1
BOS1:40 amBoston Logan Intl
30h 30m
1 stop
ICN9:10 pmIncheon Intl
Sep 24
ICN1:40 pmIncheon Intl
22h 45m
1 stop
BOS11:25 pmBoston Logan Intl
Cathay Pacific
Aug 31
BOS1:40 amBoston Logan Intl
22h 00m
1 stop
ICN12:40 pmIncheon Intl
Sep 15
ICN3:10 pmIncheon Intl
20h 50m
1 stop
BOS11:00 pmBoston Logan Intl

Air Canada flights from Boston to Seoul

Our best Air Canada deals on Boston to Seoul flight tickets
Air Canada
Sep 1
BOS3:15 pmBoston Logan Intl
36h 00m
1 stop
ICN4:15 pmIncheon Intl
Sep 15
ICN5:45 pmIncheon Intl
28h 45m
2 stops
BOS9:30 amBoston Logan Intl
Air Canada
Sep 21
BOS6:00 amBoston Logan Intl
21h 05m
2 stops
ICN4:05 pmIncheon Intl
Nov 10
ICN6:55 pmIncheon Intl
28h 37m
2 stops
BOS9:32 amBoston Logan Intl
Air Canada
Sep 1
BOS5:50 amBoston Logan Intl
21h 15m
2 stops
ICN4:05 pmIncheon Intl
Sep 15
ICN5:45 pmIncheon Intl
28h 45m
2 stops
BOS9:30 amBoston Logan Intl

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 August 14, 2025.
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

Tue 10/28

1:30 am-6:35 pm

1 stop28h 05m

Incheon Intl

Tue 11/11

1:50 pm-10:00 pm

1 stop22h 10m

$773

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Mon 9/1

1:40 am-9:10 pm

1 stop30h 30m

Incheon Intl

Wed 9/24

1:40 pm-11:25 pm

1 stop22h 45m

$817

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Sun 8/31

1:40 am-12:40 pm

1 stop22h 00m

Incheon Intl

Mon 9/15

3:10 pm-11:00 pm

1 stop20h 50m

$818

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Mon 9/1

3:15 pm-4:15 pm

1 stop36h 00m

Incheon Intl

Mon 9/15

5:45 pm-9:30 am

2 stops28h 45m

$859

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Sun 9/21

6:00 am-4:05 pm

2 stops21h 05m

Incheon Intl

Mon 11/10

6:55 pm-9:32 am

2 stops28h 37m

$860

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Sat 9/13

7:00 pm-9:35 pm

1 stop37h 35m

Incheon Intl

Tue 9/16

9:30 pm-1:48 pm

2 stops29h 18m

$884

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Thu 9/4

7:00 pm-6:45 pm

3 stops34h 45m

Incheon Intl

Fri 9/12

9:30 pm-1:48 pm

2 stops29h 18m

$894

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Tue 9/9

1:20 pm-10:45 am

1 stop32h 25m

Seoul Gimpo Intl

Tue 9/16

7:55 am-6:05 pm

1 stop23h 10m

$981

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Tue 9/9

7:00 am-9:50 pm

2 stops25h 50m

Seoul Gimpo Intl

Tue 9/16

7:20 pm-6:05 pm

1 stop35h 45m

$988

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Fri 8/29

6:50 am-11:00 am

2 stops39h 10m

Seoul Gimpo Intl

Fri 9/5

8:50 pm-11:56 pm

2 stops40h 06m

$1,114

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 $1,036. 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 $1,218.

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 $1,105 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,486 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 $1,453 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 $1,264 on momondo.

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

There are 4 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 10% 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 August 2025, prices for Boston to Seoul flights are approximately 20% cheaper 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

$372

Fastest flight time

16h 55m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from Boston in the past 72 hours is $372. The best round-trip flight deal from Boston to Seoul found on momondo in the last 72 hours is $773.
The fastest flight from Boston to Seoul takes 16h 55m
Direct flights go from Boston to Seoul every day.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)
  • 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 20h 05m.

  • 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 $397Free CancellationRating
8.0
7,980 reviews
Search Delta flights
Turkish AirlinesPriceFrom $805Free CancellationRating
7.3
3,940 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $864Free CancellationRating
7.1
9,949 reviews
Search Air Canada flights
Cathay PacificPriceFrom $872Free CancellationRating
7.6
968 reviews
Search Cathay Pacific flights
American AirlinesPriceFrom $875Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $902Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
Korean AirPriceFrom $1,470Free CancellationRating
8.4
1,131 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 1,131 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Boston to Seoul in the last 72 hours was $1,470 (round-trip), much lower than the average airfare cost of $1,973 for Korean Air flights on this route.

  • Delta Flights From Boston to Seoul

    Delta (8.0/10 from 7,980 reviews) operates around 7 flights from Boston to Seoul in any given week. The average Delta airfare for this route is around $1,995, with deals from around $397 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
Tue 8/19
Tue 8/26

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