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$480+ Cheap flights from Busan (PUS) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Busan to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Busan (PUS) to Seattle (SEA). 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 September 11, 2025.

Round-trip from

$575
(Gotogate)

One-way from

$480
(Kiwi.com)

Popular in

January

Cheapest in

June

Average price

$1,052
From Busan Gimhae to Seattle/Tacoma Intl
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One-way flight from Busan Gimhae to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 4% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Busan to Seattle

Cheapest flights from Busan to Seattle
Explore the most affordable flight options available from Busan to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/11. 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.
Mon 10/2710:25 amPUS - SEA
1 stop15h 35mKorean Air
Tue 11/411:00 amSEA - PUS
1 stop15h 35mKorean Air
Deal found 9/11$575
This Gotogate deal was found by Cheapflights users on 9/9. 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.
Mon 10/67:00 amPUS - SEA
1 stop19h 40mKorean Air
Wed 10/1512:50 pmSEA - PUS
1 stop14h 45mKorean Air
Deal found 9/9$578
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/412:45 pmPUS - SEA
1 stop18h 10mMultiple Airlines
Mon 11/1012:10 amSEA - PUS
1 stop18h 20mMultiple Airlines
Deal found 9/9$642
This Gotogate deal was found by Cheapflights users on 9/9. 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.
Mon 10/610:40 amPUS - SEA
1 stop16h 00mKorean Air
Tue 10/1412:50 pmSEA - PUS
1 stop15h 55mKorean Air
Deal found 9/9$703
This Gotogate deal was found by Cheapflights users on 9/10. 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.
Fri 12/267:55 amPUS - SEA
1 stop18h 05mKorean Air
Sat 2/1411:00 amSEA - PUS
1 stop16h 45mKorean Air
Deal found 9/10$716
This Gotogate deal was found by Cheapflights users on 9/9. 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.
Mon 11/34:10 pmPUS - SEA
1 stop33h 50mKorean Air
Mon 11/1011:00 amSEA - PUS
1 stop35h 10mKorean Air
Deal found 9/9$719
This Gotogate deal was found by Cheapflights users on 9/9. 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.
Mon 9/228:05 amPUS - SEA
1 stop18h 35mKorean Air
Tue 9/3012:50 pmSEA - PUS
1 stop14h 45mKorean Air
Deal found 9/9$721
This Gotogate deal was found by Cheapflights users on 9/11. 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.
Mon 11/34:10 pmPUS - SEA
1 stop33h 50mKorean Air
Fri 11/711:00 amSEA - PUS
1 stop16h 45mKorean Air
Deal found 9/11$722
This WhyPayMore deal was found by Cheapflights users on 9/11. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:00 pmPUS - SEA
1 stop18h 20mKorean Air
Mon 12/111:00 amSEA - PUS
1 stop16h 45mKorean Air
Deal found 9/11$730
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:00 amPUS - SEA
1 stop21h 30mMultiple Airlines
Sat 10/182:15 pmSEA - PUS
1 stop27h 15mMultiple Airlines
Deal found 9/10$736

Cheapflights Fare Finder

 
Customize your flight search to find flights from Busan to Seattle 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 September 11, 2025.
Use the filters below to find and compare flights from Busan to Seattle that are best for you.

Fly from

Busan

Fly to

Seattle

Route

Depart

Return

Price

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Mon 10/6

10:40 am-10:40 am

1 stop16h 00m

Seattle/Tacoma Intl

Tue 10/14

12:50 pm-8:45 pm

1 stop15h 55m

$703

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Tue 11/4

12:00 pm-9:00 am

1 stop14h 00m

Seattle/Tacoma Intl

Tue 11/11

11:00 am-10:50 am

1 stop30h 50m

$719

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Mon 11/3

4:10 pm-9:00 am

1 stop33h 50m

Seattle/Tacoma Intl

Tue 11/11

11:00 am-3:10 pm

1 stop35h 10m

$721

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Mon 11/3

4:10 pm-9:00 am

1 stop33h 50m

Seattle/Tacoma Intl

Mon 11/10

11:00 am-3:10 pm

1 stop35h 10m

$722

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Sun 12/21

4:10 pm-1:20 pm

1 stop14h 10m

Seattle/Tacoma Intl

Wed 12/31

7:13 am-10:50 am

2 stops34h 37m

$744

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Mon 12/22

7:55 am-9:00 am

1 stop18h 05m

Seattle/Tacoma Intl

Tue 12/30

11:00 am-7:30 pm

1 stop15h 30m

$744

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Sun 12/21

7:00 am-9:00 am

1 stop19h 00m

Seattle/Tacoma Intl

Tue 12/30

11:30 am-8:10 am

1 stop27h 40m

$744

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Sat 12/20

10:25 am-9:00 am

1 stop15h 35m

Seattle/Tacoma Intl

Thu 1/1

11:25 am-7:30 pm

1 stop15h 05m

$744

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Sat 12/20

10:25 am-9:00 am

1 stop15h 35m

Seattle/Tacoma Intl

Wed 12/31

7:13 am-8:45 pm

2 stops20h 32m

$744

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Tue 9/16

9:30 pm-2:45 pm

2 stops57h 15m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 11 results
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Best time to book a flight from Busan to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Busan 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 Busan to Seattle

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

Currently, January is the cheapest month in which you can book a flight from Busan to Seattle (average of $238). Flying from Busan to Seattle in June is currently the most expensive (average of $388). 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Korean Air from Busan to Seattle 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
1,139 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

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

  • How long is the flight from Busan to Seattle?

    A quick flight from Busan to Seattle can take about 14h 10m. Korean Air provides one of the quickest options available for as low as $744. Busan and Seattle are separated by a distance of 5228 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Busan to Seattle round-trip?

    Our cheapest airline available from Busan to Seattle is Korean Air. Our recent data shows that you can find tickets from as low as $807 on this airline. Korean Air is priced at 19% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Busan to Seattle 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 Busan to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Busan to Seattle (average of $238). Flying from Busan to Seattle in June is currently the most expensive (average of $388). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Busan to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Seattle flights
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Busan to Portland flights

Top airline flying from Busan to Seattle

Discover the top airline that operate flights from Busan to Seattle. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$807Average$976FlexibilityNo cancel feeOn-time81%

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