Cheap flights from Seoul to Boston from $455

In general, November is the cheapest month to fly from Seoul to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $511. If you aren’t able to travel during the month of November, then book flights to Boston from Seoul during December instead. Flights to Boston in December, while not as cheap as those in November, still average around $763.

The cheapest day to depart from Seoul to Boston is on a Tuesday when prices can be found for as low as $1,104. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $1,791.

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

You are more likely to see cheaper flights to Boston from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $1,254 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Seoul for as low as $471 on momondo.

There are 2 cabin classes available to choose from on Seoul to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 51% on your flight if you consider stops on a Seoul to Boston flight.

Japan Airlines, Cathay Pacific, and United Airlines are the most popular carriers operating from Seoul to Boston Logan Intl

Korean Air, Air Canada and Delta are the top three most popular airlines that fly to Boston from Seoul according to our data. Korean Air is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 3 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

San Francisco (SFO) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via San Francisco (SFO) offer the lowest average round-trip price of $848.

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 17h 43m.

San Francisco (SFO) has the shortest average layover time for this route: 1h 43m.

The number of flights available between Seoul and Boston is 2 per day as of August 2026. The most frequent departure time is 9:00AM, with 100% of daily flights leaving at noon.

As of August 2026, there are 14 flights per week flying from Seoul to Boston. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.