$436 Cheap Flights from Busan (PUS) to Seattle (SEA)

View $436 flight on Wed, Nov 26, 2025Opens in a new window

Popular airlines from Gimhae Airport (PUS) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Busan to Seattle (PUS-SEA)

Prices were available within the past 7 days and start at $436 for one-way flights and $635 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Fri, Dec 12 - Wed, Jan 7
PUS
Busan
SEA
Seattle
$635 Roundtrip, found 1 day ago
$635
Roundtrip
found 1 day ago
Select Korean Air flight, departing Fri, Dec 12 from Busan to Seattle, returning Wed, Jan 7, priced at $635 found 1 day ago
Korean Air
Fri, Dec 12 - Wed, Jan 7
PUS
Busan
SEA
Seattle
$723 Roundtrip, found 1 day ago
$723
Roundtrip
found 1 day ago
Select Korean Air flight, departing Fri, Dec 12 from Busan to Seattle, returning Wed, Jan 7, priced at $723 found 1 day ago
Korean Air
Fri, Dec 26 - Wed, Dec 31
PUS
Busan
SEA
Seattle
$725 Roundtrip, found 6 days ago
$725
Roundtrip
found 6 days ago
Select Korean Air flight, departing Fri, Dec 26 from Busan to Seattle, returning Wed, Dec 31, priced at $725 found 6 days ago
Korean Air
Fri, Dec 26 - Wed, Dec 31
PUS
Busan
SEA
Seattle
$760 Roundtrip, found 6 days ago
$760
Roundtrip
found 6 days ago
Select Korean Air flight, departing Fri, Dec 26 from Busan to Seattle, returning Wed, Dec 31, priced at $760 found 6 days ago
Jeju Air
Tue, Nov 18 - Tue, Nov 25
PUS
Busan
SEA
Seattle
$770 Roundtrip, found 3 days ago
$770
Roundtrip
found 3 days ago
Select Jeju Air flight, departing Tue, Nov 18 from Busan to Seattle, returning Tue, Nov 25, priced at $770 found 3 days ago
Jeju Air
Tue, Nov 18 - Tue, Nov 25
PUS
Busan
SEA
Seattle
$802 Roundtrip, found 3 days ago
$802
Roundtrip
found 3 days ago
Select Jeju Air flight, departing Tue, Nov 18 from Busan to Seattle, returning Tue, Nov 25, priced at $802 found 3 days ago
Korean Air
Sat, May 16 - Sun, Jun 21
PUS
Busan
SEA
Seattle
$825 Roundtrip, found 2 days ago
$825
Roundtrip
found 2 days ago
Select Korean Air flight, departing Sat, May 16 from Busan to Seattle, returning Sun, Jun 21, priced at $825 found 2 days ago
China Airlines
Sat, Mar 21 - Sun, Apr 12
PUS
Busan
SEA
Seattle
$860 Roundtrip, found 4 days ago
$860
Roundtrip
found 4 days ago
Select China Airlines flight, departing Sat, Mar 21 from Busan to Seattle, returning Sun, Apr 12, priced at $860 found 4 days ago
Delta
Sun, Jan 18 - Wed, Jan 21
PUS
Busan
SEA
Seattle
$932 Roundtrip, found 17 hours ago
$932
Roundtrip
found 17 hours ago
Select Delta flight, departing Sun, Jan 18 from Busan to Seattle, returning Wed, Jan 21, priced at $932 found 17 hours ago
Singapore Airlines
Sat, Mar 21 - Sun, Apr 12
PUS
Busan
SEA
Seattle
$979 Roundtrip, found 4 days ago
$979
Roundtrip
found 4 days ago
Select Singapore Airlines flight, departing Sat, Mar 21 from Busan to Seattle, returning Sun, Apr 12, priced at $979 found 4 days ago

Find the cheapest month to fly from Busan (PUS) to Seattle (SEA)

October is typically the cheapest month to fly

From $576 - $1,416 per traveler.

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $847
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $847
Flights from Busan (PUS) to Seattle (SEA)
Origin airport
Gimhae
Destination airport
Seattle - Tacoma Intl.
Airlines serving
China Airlines, Delta, EVA Airways, Japan Airlines, Korean Air
Roundtrip price
$634
Distance
5231 mi

Busan to Seattle Flights

The cheapest times to fly from Busan to Seattle

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 Busan to Seattle are during the month of December. You can find some of the cheapest flights from Busan to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Busan to Seattle

Sunday is one of the best days to book for cheap flights from Busan to Seattle: 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 Busan to Seattle

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 Busan to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $436 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 Busan to Seattle 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 Busan to Seattle 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.

 

Frequently asked questions

How much does a flight from Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA) cost?
Secure a cheap one-way flight from $436 or cheap return flight from $635 from Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA) 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 Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA)?
December is the least expensive month to fly from PUS to SEA. Traveling outside of peak seasons is often the key to finding better deals on flights.
What is the cheapest airline that flies from Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PUS to SEA flight.
How many flights per day from Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA)?
You'll have to hop on a flight with a layover if you're traveling from Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from PUS to SEA?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA)?
To touch down at Seattle - Tacoma Intl. Airport (SEA) on time, select a flight that leaves from Gimhae Airport (PUS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your flight from PUS to SEA just before your getaway is typically more expensive. However, if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a PUS to SEA flight and hotel package?
You can save money by booking a PUS to SEA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After choosing your ideal accommodations and flights, you can add extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Gimhae Airport (PUS) to Seattle - Tacoma Intl. Airport (SEA)?
In most cases, you're able to reschedule or cancel your PUS to SEA flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, visit our Customer Service portal.

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*Available to One Key members.