$611 Cheap Flights from Washington (IAD) to Busan (PUS)

View $611 flight on Fri, Mar 20, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)

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Cheap Flights from Washington to Busan (IAD-PUS)

Prices were available within the past 7 days and start at $611 for one-way flights and $1,235 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Mar 20 - Fri, Apr 10
IAD
Washington
PUS
Busan
$1,235 Roundtrip, found 3 days ago
$1,235
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Mar 20 from Washington to Busan, returning Fri, Apr 10, priced at $1,235 found 3 days ago
Alaska Airlines
Sun, Mar 8 - Mon, Mar 23
IAD
Washington
PUS
Busan
$1,236 Roundtrip, found 1 day ago
$1,236
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, Mar 8 from Washington to Busan, returning Mon, Mar 23, priced at $1,236 found 1 day ago
China Airlines
Tue, Apr 14 - Tue, Apr 28
IAD
Washington
PUS
Busan
$1,314 Roundtrip, found 2 days ago
$1,314
Roundtrip
found 2 days ago
Select China Airlines flight, departing Tue, Apr 14 from Washington to Busan, returning Tue, Apr 28, priced at $1,314 found 2 days ago
Alaska Airlines
Mon, Nov 10 - Fri, Nov 14
IAD
Washington
PUS
Busan
$1,315 Roundtrip, found 4 days ago
$1,315
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Nov 10 from Washington to Busan, returning Fri, Nov 14, priced at $1,315 found 4 days ago
Alaska Airlines
Mon, Nov 17 - Mon, Dec 8
IAD
Washington
PUS
Busan
$1,318 Roundtrip, found 1 day ago
$1,318
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Nov 17 from Washington to Busan, returning Mon, Dec 8, priced at $1,318 found 1 day ago
Alaska Airlines
Mon, Nov 17 - Mon, Dec 8
IAD
Washington
PUS
Busan
$1,326 Roundtrip, found 1 day ago
$1,326
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Nov 17 from Washington to Busan, returning Mon, Dec 8, priced at $1,326 found 1 day ago
Alaska Airlines
Wed, Feb 18 - Sat, Feb 21
IAD
Washington
PUS
Busan
$1,339 Roundtrip, found 3 days ago
$1,339
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Washington to Busan, returning Sat, Feb 21, priced at $1,339 found 3 days ago
Delta
Wed, Jan 28 - Tue, Feb 3
IAD
Washington
PUS
Busan
$1,776 Roundtrip, found 4 days ago
$1,776
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jan 28 from Washington to Busan, returning Tue, Feb 3, priced at $1,776 found 4 days ago
Korean Air
Mon, Jan 12 - Mon, Jan 19
IAD
Washington
PUS
Busan
$1,779 Roundtrip, found 2 days ago
$1,779
Roundtrip
found 2 days ago
Select Korean Air flight, departing Mon, Jan 12 from Washington to Busan, returning Mon, Jan 19, priced at $1,779 found 2 days ago
Air China
Tue, Nov 4 - Tue, Nov 11
IAD
Washington
PUS
Busan
$1,889 Roundtrip, found 7 hours ago
$1,889
Roundtrip
found 7 hours ago
Select Air China flight, departing Tue, Nov 4 from Washington to Busan, returning Tue, Nov 11, priced at $1,889 found 7 hours ago

Alternative airports near Busan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gimhae PUS. Cheapest option available. Flights from $1,519
PUS
Gimhae
Cheapest
Flights from $1,519

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS) cost?
Grab a cheap one-way flight from $611 or cheap return flight from $1,235 from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
The cheapest month to fly from IAD to PUS is March, when demand is low. Off-peak months are often when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
To find the cheapest airline that'll fly you from IAD to PUS, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to PUS?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
Book a flight from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS) last-minute?
Booking your plane ticket from IAD to PUS right before your trip is usually more expensive. However, if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book an IAD to PUS flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to PUS flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place takes the hassle out of planning your trip. Simply pick your flights and choose from our extensive range of stays, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Gimhae Airport (PUS)?
If you booked your IAD to PUS flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Gimhae
Airlines serving
Air China, Air France, Delta, Korean Air
Roundtrip price
$1,235
Distance
7044 mi

Book with confidence

Washington to Busan Flights

The cheapest times to fly from Washington to Busan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Busan are during the month of March. You can find some of the cheapest flights from Washington to Busan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Busan

Sunday is one of the best days to book for cheap flights from Washington to Busan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Busan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Busan in 2025. You can also book with separate airlines for your outbound and return journeys, from $611 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Busan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Busan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Busan Flights

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*Available to One Key members.