$1,098 Cheap Delta flights Boston (BOS) to Seoul (ICN)

Landing cheap one-way Delta Air Lines flights from BOS to ICN from $1,098 on Expedia is simple — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares from $1,782 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to Seoul are often cheaper in the low-season months of January and February. Whether you need a return or one-way ticket, you could land a better deal then.

To get affordable flights from BOS to ICN with Delta Air Lines, start searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Fill in your dates, click search and check “Nonstop” on Expedia to find any direct flights from BOS to ICN with Delta Air Lines or other carriers.

Search Delta Air Lines’s earliest flights from BOS to ICN by selecting the “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Incheon Intl. Airport (ICN) is the primary Seoul gateway for Delta Air Lines flights from Logan Intl. Airport (BOS).

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a top choice for many passengers heading from BOS to ICN. What’s more, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll probably board a Boeing 777-300ER for your Delta Air Lines flight from Logan Intl. Airport (BOS) to Incheon Intl. Airport (ICN). However, you could be switched to an alternative aircraft if there are operational changes.

Changes are often free within 24 hours of making your booking, but your airline may charge you after that time. For further details about modifying your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to make changes without additional charges, check the “Changes included” and “No cancel fee” filters when planning your next adventure.