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$867+ Cheap flights from Seattle (SEA) to Busan (PUS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PUS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Seattle to Busan

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Busan (PUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$867
(oojo)

Popular in

December

Cheapest in

March

Average price

$1,627
From Seattle/Tacoma Intl to Busan Gimhae
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to Busan

Cheapest flights from Seattle to Busan
Explore the most affordable flight options available from Seattle to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/281:10 amSEA - PUS
1 stop25h 50mChina Airlines
Tue 10/218:00 pmPUS - SEA
1 stop15h 20mChina Airlines
Deal found 7/29$867
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/62:15 pmSEA - PUS
2 stops34h 45mAsiana Airlines
Sun 9/215:55 pmPUS - SEA
2 stops34h 35mAsiana Airlines
Deal found 7/29$913
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/63:59 pmSEA - PUS
2 stops23h 46mKorean Air
Sun 9/218:00 pmPUS - SEA
1 stop30h 40mKorean Air
Deal found 7/29$958
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:20 amSEA - PUS
2 stops34h 10mDelta
Fri 9/198:45 amPUS - SEA
2 stops29h 30mDelta
Deal found 7/29$1,014
This Gotogate deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/281:10 amSEA - PUS
1 stop18h 05mMultiple Airlines
Tue 10/2110:00 amPUS - SEA
2 stops18h 30mMultiple Airlines
Deal found 7/28$1,035

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Busan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Seattle to Busan that are best for you.

Fly from

Seattle

Fly to

Busan

Route

Depart

Return

Price

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Sun 9/28

1:10 am-7:00 pm

1 stop25h 50m

Busan Gimhae

Tue 10/21

8:00 pm-7:20 pm

1 stop15h 20m

$867

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Sat 9/6

2:15 pm-5:00 pm

2 stops34h 45m

Busan Gimhae

Sun 9/21

5:55 pm-12:30 pm

2 stops34h 35m

$913

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Sat 9/6

3:59 pm-7:45 am

2 stops23h 46m

Busan Gimhae

Sun 9/21

8:00 pm-10:40 am

1 stop30h 40m

$958

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Fri 9/12

7:20 am-9:30 am

2 stops34h 10m

Busan Gimhae

Fri 9/19

8:45 am-10:15 pm

2 stops29h 30m

$1,014

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Sun 9/28

1:10 am-11:15 am

1 stop18h 05m

Busan Gimhae

Tue 10/21

10:00 am-12:30 pm

2 stops18h 30m

$1,035

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Seattle to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Busan

What is the cheapest month to book a flight from Seattle to Busan?

Currently, August is the cheapest month in which you can book a flight from Seattle to Busan (average of $1,166). Flying from Seattle to Busan in December is currently the most expensive (average of $2,247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to PUS?

Find hourly flight availability from Seattle to Busan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from Seattle to Busan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 39% versus a flight at noon.

Reviews of airlines servicing Busan

Get insights into the airlines that provide service to Busan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Busan. Reviews last updated July 29, 2025.
Peruse reviews from past customers who have flown with Korean Air, China Airlines, and Asiana Airlines from Seattle to Busan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,121 reviews

Boarding

8.5

Entertainment

8.2

Comfort

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,121 reviews
Korean Air
8.4
Very good
1,121 reviews

Boarding

8.5

Entertainment

8.2

Comfort

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
754 reviews
Korean Air
8.4
Very good
1,121 reviews

Boarding

8.5

Entertainment

8.2

Comfort

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
465 reviews
Korean Air
8.4
Very good
1,121 reviews

Boarding

8.5

Entertainment

8.2

Comfort

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,977 reviews
Korean Air
8.4
Very good
1,121 reviews

Boarding

8.5

Entertainment

8.2

Comfort

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Busan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Busan round-trip?

    According to our current data, China Airlines ($867), Asiana Airlines ($913), and Korean Air ($958) offers the cheapest pricing from Seattle to Busan. China Airlines is priced at 38% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Busan that include hotel bookings?

    Yes. In addition to deals on Seattle to Busan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Busan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Busan.

  • Can I find deals for business class flights from Seattle to Busan?

    Yes. Cheapflights offers flight deals from Seattle to Busan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Busan?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Busan (average of $1,166). Flying from Seattle to Busan in December is currently the most expensive (average of $2,247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from Seattle to Busan

Discover the top 3 airlines that operate flights from Seattle to Busan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$835Average$987FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$1,092Average$1,342FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,265Average$1,392FlexibilityNo cancel feeOn-timeN/A

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