Cheap flights from Boston to Seoul from $539

The cheapest month to fly to Incheon Intl Airport from Boston is in September. Flight prices, which tend to average around $975, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of September, then departing from Boston during the month November is also very affordable. Most momondo users find prices during this month for around $1,051.

The cheapest day to depart from Boston to Incheon Intl Airport is on a Monday when prices can be found for as low as $1,004. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,202. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

In the evening is the cheapest time of day to fly from Boston to Incheon Intl Airport when you can find flight prices for as low as $739. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,063 on average. Flights to Incheon Intl Airport from Boston in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Incheon Intl Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,567 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Boston for as low as $952 on momondo.

There are 3 cabin classes available to choose from on Boston Logan Intl to Incheon Intl 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 26% on your flight if you consider stops on a Boston to Incheon Intl Airport flight.

As of April 2026, prices for Boston to Incheon Intl Airport flights are approximately 8% more expensive when compared to flights at the same time last year.

Etihad Airways and Delta are the most popular carriers operating from Boston Logan Intl to Incheon Intl

Korean Air, Air Canada and Cathay Pacific are the top three most popular airlines that fly to Incheon Intl Airport from Boston according to our data. Korean Air is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Incheon Intl Airport. Keep in mind that there are 7 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 28% of flights between Boston and Incheon have experienced a delay on any given week. The average delay length over the past 12 months has been 103 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with about 28% of their flights experiencing any sort of delay.

Istanbul (IST) was the most common stop: 55% of momondo users choosing 1-stop flights on this route connected there.

Flights via Toronto (YYZ) offer the lowest average round-trip price of $975.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 16h 55m.

Toronto (YYZ) has the shortest average layover time for this route: 1h 15m.

The number of flights available between Boston and Incheon Intl Airport is 2 per day as of April 2026. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

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