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$571+ Cheap flights from Portland (PDX) to Busan (PUS)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — PUS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Portland to Busan

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 August 14, 2025.

Round-trip from

$1,002
(oojo)

One-way from

$571
(Kiwi.com)

Popular in

December

Cheapest in

June
From Portland to Busan Gimhae
Search Deals
One-way flight from Portland to Busan Gimhae
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Highest demand for flights based on searches. 22% potential increase in price ($455 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($90 potential savings vs. average RT price).
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Find flight deals from Portland to Busan

Cheapest flights from Portland to Busan
Explore the most affordable flight options available from Portland to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This oojo deal was found by Cheapflights users on 8/13. 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 10/252:52 pmPDX - PUS
2 stops35h 58mChina Airlines
Tue 11/47:50 pmPUS - PDX
2 stops21h 19mChina Airlines
Deal found 8/13$1,002
This oojo deal was found by Cheapflights users on 8/14. 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 9/205:35 pmPDX - PUS
2 stops33h 25mChina Airlines
Sat 9/2710:20 amPUS - PDX
2 stops39h 05mChina Airlines
Deal found 8/14$1,103
This oojo deal was found by Cheapflights users on 8/12. 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.
Wed 11/123:29 pmPDX - PUS
2 stops34h 21mChina Airlines
Fri 11/217:50 pmPUS - PDX
2 stops30h 43mChina Airlines
Deal found 8/12$1,130
This China Airlines deal was found by Cheapflights users on 8/13. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:35 pmPDX - PUS
2 stops25h 40mMultiple Airlines
Sat 9/2712:15 pmPUS - PDX
2 stops28h 00mMultiple Airlines
Deal found 8/13$1,137
This Delta deal was found by Cheapflights users on 8/12. 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.
Sat 9/2012:40 pmPDX - PUS
2 stops27h 05mDelta
Sat 9/278:05 amPUS - PDX
2 stops28h 33mDelta
Deal found 8/12$1,267
This Delta deal was found by Cheapflights users on 8/13. 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.
Wed 11/125:30 amPDX - PUS
2 stops20h 55mDelta
Fri 11/217:55 amPUS - PDX
2 stops25h 36mDelta
Deal found 8/13$1,435
This Korean Air deal was found by Cheapflights users on 8/14. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:40 amPDX - PUS
2 stops25h 45mKorean Air
Fri 11/217:55 amPUS - PDX
2 stops22h 24mKorean Air
Deal found 8/14$4,141
This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/259:55 amPDX - PUS
3 stops33h 40mMultiple Airlines
Tue 11/412:45 pmPUS - PDX
2 stops22h 45mMultiple Airlines
Deal found 8/13$6,043

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 August 14, 2025.
Use the filters below to find and compare flights from Portland to Busan that are best for you.

Fly from

Portland

Fly to

Busan

Route

Depart

Return

Price

PortlandBusan

PDX - PUS

PDXPUS

Portland

Sat 10/25

2:52 pm-6:50 pm

2 stops35h 58m

Busan Gimhae

Tue 11/4

7:50 pm-12:09 am

2 stops21h 19m

$1,002

PortlandBusan

PDX - PUS

PDXPUS

Portland

Sat 9/20

5:35 pm-7:00 pm

2 stops33h 25m

Busan Gimhae

Sat 9/27

10:20 am-9:25 am

2 stops39h 05m

$1,103

PortlandBusan

PDX - PUS

PDXPUS

Portland

Wed 11/12

3:29 pm-6:50 pm

2 stops34h 21m

Busan Gimhae

Fri 11/21

7:50 pm-9:33 am

2 stops30h 43m

$1,130

PortlandBusan

PDX - PUS

PDXPUS

Portland

Sat 9/20

5:35 pm-11:15 am

2 stops25h 40m

Busan Gimhae

Sat 9/27

12:15 pm-12:15 am

2 stops28h 00m

$1,137

PortlandBusan

PDX - PUS

PDXPUS

Portland

Sat 9/20

12:40 pm-7:45 am

2 stops27h 05m

Busan Gimhae

Sat 9/27

8:05 am-8:38 pm

2 stops28h 33m

$1,267

PortlandBusan

PDX - PUS

PDXPUS

Portland

Wed 11/12

5:30 am-7:25 pm

2 stops20h 55m

Busan Gimhae

Fri 11/21

7:55 am-4:31 pm

2 stops25h 36m

$1,435

PortlandBusan

PDX - PUS

PDXPUS

Portland

Tue 11/11

12:40 am-7:25 pm

2 stops25h 45m

Busan Gimhae

Fri 11/21

7:55 am-1:19 pm

2 stops22h 24m

$4,141

PortlandBusan

PDX - PUS

PDXPUS

Portland

Sat 10/25

9:55 am-11:35 am

3 stops33h 40m

Busan Gimhae

Tue 11/4

12:45 pm-6:30 pm

2 stops22h 45m

$6,043

PortlandBusan

PDX - PUS

PDXPUS

Portland

Thu 8/21

10:40 am-1:00 pm

2 stops34h 20m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Portland to Busan

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

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 August 14, 2025.
See what other customers who have flown with Korean Air and China Eastern from Portland to Busan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,131 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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 Eastern
7.2
Good
160 reviews
Korean Air
8.4
Very good
1,131 reviews

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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 Portland 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 Portland to Busan round-trip?

    Flying on China Eastern is currently your cheapest option to Busan, with prices starting at $822. Another option worth looking into is Korean Air, starting at $1,273 round trip. Users have found that China Eastern is 46% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Portland to Busan (average of $1,166). Flying from Portland 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Busan

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Incheon Intl flights
Portland to Gimpo Intl flights
Boise to Incheon Intl flights
Boise to Gimpo Intl flights
Eugene to Incheon Intl flights
Medford to Incheon Intl flights

Top 2 airlines flying from Portland to Busan

Discover the top 2 airlines that operate flights from Portland 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$822Average$842FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$1,273Average$1,636FlexibilityNo cancel feeOn-time81%

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