What percentage of Boston to Seoul flights are direct?

In the trailing 90 days, direct flights from Boston to Seoul accounted for 3.1% of all available flights. For travelers opting for connecting flights, the median number of stopovers was typically 2. This indicates that the vast majority of routes between these two cities involve at least one layover.

What's the flight time from Boston to Seoul?

The typical direct flight time from Boston to Seoul is 15 hours and 30 minutes, covering a distance of 10964 kilometers. Flights with one stop generally take longer, with a median duration of 22 hours and 20 minutes. This difference highlights the convenience of direct routes for travelers seeking a quicker journey.

Is it cheaper to fly direct or with a layover from Boston to Seoul?

Historically, it has been cheaper to fly from Boston to Seoul with a layover. Connecting flights had a median price of $1187, while direct flights were significantly more expensive, with a median price of $1627. This represents a premium of 37% for direct flights. Direct flights also made up a smaller portion of the available options, accounting for 4.4% of routes in the trailing 90 days.

Flights From Boston

To Seoul

Cheap Flights from Boston to Seoul

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Prices updated 8 days ago

472 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 29, 2026.)

Today’s best flight deals from Boston to Seoul

Explore current cheapest deals departing from Boston to Seoul

2026-11-11 – 2026-11-20
BOS - Seoul
87% AI deal score
$1,158
$945
Round trip
2026-11-11 – 2026-11-18
BOS - Seoul
77% AI deal score
$995
$967
Round trip
2026-10-17 – 2026-10-31
BOS - Seoul
77% AI deal score
$1,002
$973
Round trip
2026-11-12 – 2026-11-21
BOS - Seoul
77% AI deal score
$971
$982
Round trip
2026-11-18 – 2026-11-29
BOS - Seoul
76% AI deal score
$963
$1,015
Round trip
2026-11-01 – 2026-11-08
BOS - Seoul
76% AI deal score
$997
$1,021
Round trip
2026-10-22 – 2026-10-29
BOS - Seoul
76% AI deal score
$1,049
$1,043
Round trip
2026-11-19 – 2026-11-29
BOS - Seoul
76% AI deal score
$965
$1,044
Round trip
2026-10-28 – 2026-11-08
BOS - Seoul
76% AI deal score
$1,012
$1,045
Round trip
2026-10-28 – 2026-11-04
BOS - Seoul
76% AI deal score
$1,049
$1,045
Round trip

Boston to Seoul: Overview

Insights for flights from Boston to Seoul

Most itineraries from Boston to Seoul connect at least once, with only 3.1% of recent fares being non-stop. For connecting flights, the typical number of stopovers is 2. This means that for cheap flights from Boston to Seoul, you will most likely be looking at itineraries with at least one connection.

Right now, fares to Seoul are above the typical level, with prices typically ranging from $1173–$2020, and a median of $1488. Only 11% of recent fares were classified as a good price, indicating that finding a significant discount can be challenging. New deals appear almost daily, so setting up a price alert can help you track fluctuations.

When is the cheapest time to fly from Boston to Seoul? The data indicates that January is typically the most affordable month, with a median fare of $780. Other cost-effective options include April, with a median fare of $938, and July, where the median fare is $1054. Planning your trip during these months could lead to more favorable prices.

A typical journey from Boston to Seoul, including connections, takes approximately 42h 50m. This long duration reflects the significant distance and the prevalence of connecting itineraries on this route. Given that most flights involve at least one stopover, the total travel time can vary considerably depending on the specific connections.

The distance between Boston and Seoul is approximately 10964 km, classifying this as a long-haul international route. This substantial distance contributes to the extended flight times and the necessity for connecting flights for the majority of travelers.

How much is a round trip from Boston to Seoul

Regular price: $1,022 - $2,139

Prices for flights from Boston to Seoul are currently below the regular range.

The regular price range for flights from Boston to Seoul is between $1022 and $2139. The current lowest deal is $945 with Hainan Airlines for travel from Nov 11-Nov 20.

now $945

Low $1,022

High $2,139

The cheapest time to fly from Boston to Seoul

The cheapest month to fly from Boston to Seoul is January, with a median price of $780. The most expensive month is December, with a median price of $2895. Prices are generally lower from January to November.

January

Cheapest

Flights from $780

December

Most Expensive

Flights from $2,895

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boston to Seoul

Korean Air

Last-minute flights going from Boston to Seoul

Wed, Sep 30

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Cathay Pacific

$1,148

$1,400

One-way

Wed, Sep 30

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Cathay Pacific

$1,246

$1,403

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,027

$1,443

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,060

$1,443

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,047

$1,443

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,030

$1,443

One-way

Biggest price drops on these dates for flights from Boston to Seoul

5 nights

Nov 1 - Nov 6

$1,224 → $945

23%

7 nights

Nov 18 - Nov 25

$1,188 → $1,000

16%

11 nights

Apr 19 - Apr 30

$1,308 → $1,153

12%

8 nights

Apr 12 - Apr 20

$1,295 → $1,153

11%

Popular Airports to fly from Boston to Seoul

Boston - Seoul route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Boston to Seoul are above the typical level, with a median of $1488.

📅 Best time to fly

January offers the lowest median prices

Historically, January, April, and July offer the lowest median prices for this route.

⏱️ Flight duration

Flights typically take 42h 50m

The median flight duration from Boston to Seoul is 42 hours and 50 minutes.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights make up 96.9% of recent bookings, with a median of 2 stopovers.

🏆 Airline highlight

Korean Air offers direct flights

Korean Air has offered direct flights from Boston to Seoul historically.

🎯 Booking tip

Deals are frequent on this route

Deals for flights from Boston to Seoul are frequent, appearing within a 30-day window.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Logan International Airport is a convenient departure point for flights from Boston to Seoul.

📍 ~4 km from city center (reachable by car or public transport)

💸 Flights from ~$862

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Fly into Incheon International for convenient access to Seoul, with flights from Boston starting at $862.

📍 ~48 km from Seoul (reachable by car)

💸 Flights from ~$862

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Seoul, South Korea

93% AI deal score

$6,768

$4,183

Save $2,585

Cathay Pacific

Business Class

From BOS

Elite

Nov 10

Seoul, South Korea

89% AI deal score

$5,498

$4,511

Save $987

Alaska Airlines, Inc., +1

Business Class

From BOS

Elite

Nov 10

Seoul, South Korea

89% AI deal score

$5,533

$4,511

Save $1,022

Alaska Airlines, Inc., +1

Business Class

From BOS

Elite

Nov 10

Seoul, South Korea

89% AI deal score

$5,631

$4,511

Save $1,120

Alaska Airlines, Inc., +1

Business Class

From BOS

Elite

Oct 29

Seoul, South Korea

89% AI deal score

$6,058

$4,718

Save $1,340

Alaska Airlines, Inc., +1

Business Class

From BOS

Elite

Nov 25

Seoul, South Korea

85% AI deal score

$5,631

$4,694

Save $937

Turkish Airlines

Business Class

From BOS

Elite

Dec 01

Seoul, South Korea

85% AI deal score

$5,741

$4,767

Save $974

Turkish Airlines

Business Class

From BOS

Elite

Jan 16

Seoul, South Korea

85% AI deal score

$5,704

$4,803

Save $901

Turkish Airlines

Business Class

From BOS

Elite

Oct 08

Seoul, South Korea

85% AI deal score

$24,825

$20,826

Save $3,999

Swiss International Air Lines

Business Class

From BOS

Elite

Oct 08

Seoul, South Korea

85% AI deal score

$24,407

$20,826

Save $3,581

Swiss International Air Lines

Business Class

From BOS

Elite

Oct 29

Seoul, South Korea

84% AI deal score

$5,815

$4,718

Save $1,097

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Seoul

Historically, the lowest prices for flights from Boston to Seoul are found when booking 14-27 days in advance. During this period, the average price was $1109. Booking within 0-6 days of departure typically saw prices rise to an average of $1565. Even booking 60+ days out resulted in higher average fares of $1411, indicating that the optimal booking window is closer to the departure date.

Across the trailing quarter, a good deal for a flight from Boston to Seoul was considered to be $1173 or less. The median price for this route was $1488, while prices at the 75th percentile reached $2020. Therefore, if you find a fare at or below $1173, it is typically considered a favorable price for this route.

Historically, January has been the cheapest month to fly from Boston to Seoul, with a median price of $780. April also offered competitive fares, with a median price of $938. In contrast, July was observed to be the most expensive month, showing a median price of $1054 for flights on this route. The annual median price for this route was $1488.

Boston to Seoul: Overview

Insights for flights from Boston to Seoul

How much is a round trip from Boston to Seoul

Regular price: $1,022 - $2,139

Prices for flights from Boston to Seoul are currently below the regular range.

The regular price range for flights from Boston to Seoul is between $1022 and $2139. The current lowest deal is $945 with Hainan Airlines for travel from Nov 11-Nov 20.

now $945

Low $1,022

High $2,139

The cheapest time to fly from Boston to Seoul

January

Cheapest

Flights from $780

December

Most Expensive

Flights from $2,895

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boston to Seoul

Korean Air

Last-minute flights going from Boston to Seoul

Wed, Sep 30

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Cathay Pacific

$1,148

$1,400

One-way

Wed, Sep 30

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Cathay Pacific

$1,246

$1,403

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,027

$1,443

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,060

$1,443

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,047

$1,443

One-way

Mon, Oct 5

⌛ Last-Minute

BOS - Seoul

Boston (BOS) - Seoul (ICN)

Turkish Airlines

$1,030

$1,443

One-way

Biggest price drops on these dates for flights from Boston to Seoul

5 nights

Nov 1 - Nov 6

$1,224 → $945

23%

7 nights

Nov 18 - Nov 25

$1,188 → $1,000

16%

11 nights

Apr 19 - Apr 30

$1,308 → $1,153

12%

8 nights

Apr 12 - Apr 20

$1,295 → $1,153

11%

Popular Airports to fly from Boston to Seoul

Boston - Seoul route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Boston to Seoul are above the typical level, with a median of $1488.

📅 Best time to fly

January offers the lowest median prices

Historically, January, April, and July offer the lowest median prices for this route.

⏱️ Flight duration

Flights typically take 42h 50m

The median flight duration from Boston to Seoul is 42 hours and 50 minutes.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights make up 96.9% of recent bookings, with a median of 2 stopovers.

🏆 Airline highlight

Korean Air offers direct flights

Korean Air has offered direct flights from Boston to Seoul historically.

🎯 Booking tip

Deals are frequent on this route

Deals for flights from Boston to Seoul are frequent, appearing within a 30-day window.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Logan International Airport is a convenient departure point for flights from Boston to Seoul.

📍 ~4 km from city center (reachable by car or public transport)

💸 Flights from ~$862

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Fly into Incheon International for convenient access to Seoul, with flights from Boston starting at $862.

📍 ~48 km from Seoul (reachable by car)

💸 Flights from ~$862

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Cheongju International can be a useful alternative arrival airport, offering good bus and rail connectivity to Seoul.

Seoul, South Korea

84% AI deal score

$5,815

$4,718

Save $1,097

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Seoul

Cheap Flights from Boston to Seoul

Today’s best flight deals from Boston to Seoul

Boston to Seoul: Overview

Insights for flights from Boston to Seoul

How much is a round trip from Boston to Seoul

The cheapest time to fly from Boston to Seoul

Direct flights from Boston to Seoul

Last-minute flights going from Boston to Seoul

Biggest price drops on these dates for flights from Boston to Seoul

Popular Airports to fly from Boston to Seoul

Boston - Seoul route insights

Recent fares are above the typical level

January offers the lowest median prices

Flights typically take 42h 50m

Connecting flights are dominant

Korean Air offers direct flights

Deals are frequent on this route

Boston main airports to depart from

Seoul main airports to arrive at

Airports nearby Seoul used as alternative

Business & First Class Flight Deals to Seoul

Best Elite deals to Seoul

Oct 01

Oct 02

Nov 10

Nov 10

Nov 10

Oct 29

Nov 25

Dec 01

Jan 16

Oct 08

Oct 08

Oct 29

Frequently Asked Questions About Flights to Seoul

How early should I book Boston to Seoul flights to get the cheapest price?

How do I know if a Boston to Seoul flight is a good deal?

What's the cheapest month to fly from Boston to Seoul?

What percentage of Boston to Seoul flights are direct?

What's the flight time from Boston to Seoul?

Is it cheaper to fly direct or with a layover from Boston to Seoul?

Related routes

More routes from Boston

Flights to Seoul from other cities

Boston to Seoul: Overview

Insights for flights from Boston to Seoul

How much is a round trip from Boston to Seoul

The cheapest time to fly from Boston to Seoul

Direct flights from Boston to Seoul

Last-minute flights going from Boston to Seoul

Biggest price drops on these dates for flights from Boston to Seoul

Popular Airports to fly from Boston to Seoul

Boston - Seoul route insights

Recent fares are above the typical level

January offers the lowest median prices

Flights typically take 42h 50m

Connecting flights are dominant

Korean Air offers direct flights

Deals are frequent on this route

Boston main airports to depart from

Seoul main airports to arrive at

Airports nearby Seoul used as alternative

Business & First Class Flight Deals to Seoul

Best Elite deals to Seoul

Oct 01

Oct 02

Nov 10

Nov 10

Nov 10

Oct 29

Nov 25

Dec 01

Jan 16

Oct 08

Oct 08

Oct 29

Frequently Asked Questions About Flights to Seoul

How early should I book Boston to Seoul flights to get the cheapest price?

How do I know if a Boston to Seoul flight is a good deal?

What's the cheapest month to fly from Boston to Seoul?