Cheap Flights from Boston (BOS) to Seoul (SEL)

Frequently Asked Questions

• What are the cheapest flights from Boston to Seoul (BOS-SEL)?

  Based on Trip.com data, Delta Air Lines offers one-way fares as low as US$462 on Cheapest nonstop routes (e.g. BOS to ICN on Wed, Feb 25), while Hainan Airlines offers Cheapest nonstop round-trips from US$868 departing on Fri, Mar 6 and returning on Tue, Mar 10.

• Which airlines offer direct flights from Boston to Seoul?

  At the moment, you can catch a nonstop flight from Boston to Seoul with the following airlines, including: Delta Air Lines Air Premia Korean Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Boston to Seoul?

  It takes about 15 hours 35 minutes to fly from Boston to Seoul.

• When is the best time to book flights from Boston to Seoul?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Seoul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Boston to Seoul?

  Based on Trip.com data in the past 4 weeks, there is 6 flight per week flying from Boston to Seoul. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL7840 (12:02) Korean Air: S/M/T/W/T/F/S -- KE092 (12:02)

• How can I find the best deals on flights from Boston to Seoul?

  To find best deals on flights from Boston to Seoul, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Feb 25, with one-way flights priced at just US$462.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Korean Air.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Seoul travel is around January.
  · Get exclusive promo codes for Trip.com app users.

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

  The cheapest months to fly from Boston to Seoul is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Boston to Seoul on?

  After crunching the numbers on our January flight calendar, it's currently cheapest to fly from Boston to Seoul on January 20, 2026 with Jetblue Airways, with prices starting at US$865.

• Which airports can I fly to for Seoul from Boston?

  You can land at any one of the following hubs in Seoul, with Logan International Airport to Incheon International Airport (BOS-ICN) is by far the most common option on this route: Gimpo International Airport (GMP) Incheon International Airport (ICN).

• Is there any time difference between Boston and Seoul?

  The time difference between Seoul and Boston is 14h.

• How do I change or cancel my ticket from Boston to Seoul?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.