Find cheap one-way flights from Boston to Seoul starting at US$459.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Boston to Seoul?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When are flight tickets from Boston (BOS) to Seoul (SEL) the cheapest?

Airlines adjust prices for flights from Boston to Seoul based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Boston (BOS) to Seoul (SEL) cost?

According to Trip.com's data, the lowest price is around $1,764.
How long does it take to fly from Boston (BOS) to Seoul (SEL) and what is the distance?

It takes around 15 hours 30 minutes to fly from Boston (BOS) to Seoul (SEL).
What is the transportation method from the main airport to downtown in Seoul?
- The distance from Incheon Intl. Airport to downtown is about 48 km. It takes about 1 hour by taxi.
- The distance from Gimpo Intl. Airport to downtown is about 15 km. It takes about 30 minutes by taxi.
What are the most popular airlines that fly from Boston (BOS) to Seoul (SEL)?

Airlines with flights from Boston (BOS) to Seoul (SEL): Delta Air Lines and Korean Air.

How to find a cheap flight from Boston to Seoul

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to Seoul. Book your flights at the right time and save more.

Being flexible with your dates to get the cheapest Boston to Seoul ticket.

Tap "Date" on flight search bar to scan through the calender for Boston to Seoul airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Sun, Mar 23 at US$918 for one-way flights.

Compare cheap Boston to Seoul flight deals from over hundreds of airlines.

Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Boston to Seoul. The cheapest airline operating is Korean Air.

Set up a Price Alert

By setting up a Price Alert for your Boston to Seoul route, you can easily track the price of your airline tickets from Boston to Seoul without manually checking every day.

Don't miss cheap Boston to Seoul flight deals and promo codes.

You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.

Book early or wait unitl the last minute.

It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.

Search for flights on the go.

To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Boston to Seoul to get exclusive deals for you.

Boston to Seoul Flight Information

Cheapest one-way flight price	$458
Cheapest round-trip ticket price	$1,348
Off-season for travel	January
Peak season for travel	December
Flight distance	10,948.65 km
Average flight time	15 hours 30 minutes
Popular airline	American Airlines