$1,076 Cheap Korean Air flights Washington (IAD) to Busan (PUS)

View $1,076 flight on Mon, Sep 29, 2025Opens in a new window

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$1,076 Cheap Korean Air flights Washington (IAD) to Busan (PUS)

Prices were available within the past 7 days and start at $1,076 for one-way flights and $1,780 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, Aug 25 - Tue, Nov 18
IAD
Washington
PUS
Busan
$1,780 Roundtrip, found 11 hours ago
$1,780
Roundtrip
found 11 hours ago
Select Korean Air flight, departing Mon, Aug 25 from Washington to Busan, returning Tue, Nov 18, priced at $1,780 found 11 hours ago
Flights from Washington (IAD) to Busan (PUS)
Origin airport
Washington Dulles Intl.
Destination airport
Gimhae
Airlines serving
Air China, Air France, Delta, Korean Air
Popular airline
Korean Air
Distance
7044 mi

Frequently asked questions

How much is a Korean Air flight from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
Scoring cheap one-way Korean Air flights from IAD to PUS from $1,076 on Expedia is simple --- just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $1,780 for your next adventure.**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.
What is the cheapest month to fly from IAD to PUS with Korean Air?
Look for round-trip or one-way flights to Busan in January or February. You could find an affordable fare with Korean Air during these off-season months.
What is the cheapest time to book flights from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS) with Korean Air?
To discover cheap flights from IAD to PUS with Korean Air, begin searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another useful tip? Booking on Sunday offers 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.
Does Korean Air fly nonstop from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
To figure out if there's a direct route from IAD to PUS with Korean Air or other airlines, check the "Nonstop" box when searching for flights.
What is the earliest Korean Air flight from IAD to PUS?
Search Korean Air's earliest flights from IAD to PUS by checking our "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.
What airports does Korean Air fly into in Busan?
Korean Air flights from Washington Dulles Intl. Airport (IAD) to Busan touch down at Gimhae Airport (PUS). This is the main entry point to this destination.
What kind of luggage can I take on a Korean Air flight from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
Korean Air allows travelers to bring 2 checked-in bags weighing up to 50 lb with dimensions not exceeding 62 inches on standard economy flights from IAD to PUS. You can also bring 1 cabin bag with you in the cabin. This carry-on luggage must not exceed 21 inches x 15 inches x 7 inches and weigh no more than 39 lb. Baggage rules can vary depending on the cabin class and fare type, so check your booking or Korean Air's website to avoid paying additional fees at the airport.
Why fly with Korean Air from IAD to PUS?
Offering a 5-star airline rating, Korean Air is a popular choice for many travelers journeying from IAD to PUS. Plus, as a Korean Airlines Skypass and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Korean Air flight from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
Depending on your fare type, a fee typically applies if you cancel or change your booking more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when looking for flights. For more information on modifying or canceling your reservation, head to "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.